* [#5716](https://github.com/Icinga/icinga2/issues/5716) (Livestatus, PR): add bogus zero reply in livestatus when aggregate and non matching filter
* [#5626](https://github.com/Icinga/icinga2/issues/5626) (Livestatus, help wanted): Empty result set with non-matching filters in Livestatus stats query
### ITL
* [#5785](https://github.com/Icinga/icinga2/issues/5785) (ITL, PR): ITL: Drop ssl\_sni default setting
* [#5775](https://github.com/Icinga/icinga2/issues/5775) (ITL): Default usage of ssl\_sni in check\_tcp
* [#5942](https://github.com/Icinga/icinga2/issues/5942) (Documentation, PR): Add some technical insights into the cluster-zone health check and log lag
* [#5922](https://github.com/Icinga/icinga2/issues/5922) (Documentation, PR): Fix link format in documentation
* [#5918](https://github.com/Icinga/icinga2/issues/5918) (Documentation, PR): Fix typo in SELinux documentation
* [#5911](https://github.com/Icinga/icinga2/issues/5911) (Documentation, PR): Update ElasticsearchWriter docs for 5.x support only
* [#5866](https://github.com/Icinga/icinga2/issues/5866) (Documentation, PR): Remove redundant FreeBSD from restart instructions and add openSUSE
* [#5864](https://github.com/Icinga/icinga2/issues/5864) (Documentation, PR): Add missing initdb to PostgreSQL documentation
* [#5682](https://github.com/Icinga/icinga2/issues/5682) (Cluster, Configuration, PR): Implement support for migrating certificates to /var/lib/icinga2/certs
* [#5681](https://github.com/Icinga/icinga2/issues/5681) (CLI, Cluster, Windows): Update Windows wizard from enhanced CSR signing \(optional ticket\)
* [#5679](https://github.com/Icinga/icinga2/issues/5679) (CLI, Cluster): Migration path for improved certificate signing in the cluster
* [#5602](https://github.com/Icinga/icinga2/issues/5602) (Windows, PR): Add windows process elevation and log message if user does not have privileges to read/write files
* [#5587](https://github.com/Icinga/icinga2/issues/5587) (Log, PR): SyslogLogger: Implement option to set syslog facility
* [#5580](https://github.com/Icinga/icinga2/issues/5580) (Configuration, PR): Implement new script functions: path\_exists, glob and glob\_recursive
* [#5571](https://github.com/Icinga/icinga2/issues/5571) (CLI, Cluster, PR): Implement support for forwarding certificate signing requests in the cluster
* [#5569](https://github.com/Icinga/icinga2/issues/5569) (Performance Data, PR): ElasticWriter: Add basic auth and TLS support for Elasticsearch behind an HTTP proxy
* [#5554](https://github.com/Icinga/icinga2/issues/5554) (API, Cluster, PR): Add subjectAltName extension for all non-CA certificates
* [#5534](https://github.com/Icinga/icinga2/issues/5534) (Configuration, PR): Implement get\_services\(host {name,object}\) and add host object support for get\_service\(\)
* [#4769](https://github.com/Icinga/icinga2/issues/4769) (API): Validate and activate config package stages without triggering a reload
* [#4326](https://github.com/Icinga/icinga2/issues/4326) (API): API should provide CORS Header
* [#3891](https://github.com/Icinga/icinga2/issues/3891) (Plugins): Add option to specify ServiceDescription instead of ServiceName with check\_service.exe
* [#5728](https://github.com/Icinga/icinga2/issues/5728) (Plugins, Windows, PR): Fix check\_service not working with names
* [#5720](https://github.com/Icinga/icinga2/issues/5720) (Check Execution): Flapping tests and bugs
* [#5710](https://github.com/Icinga/icinga2/issues/5710) (CLI, Configuration, PR): Include default global zones during node wizard/setup
* [#5707](https://github.com/Icinga/icinga2/issues/5707) (CLI): node wizard/setup override zones.conf but do not include default global zones \(director-global, global-templates\)
* [#5690](https://github.com/Icinga/icinga2/issues/5690) (Documentation): Improve documentation of cipher\_list
* [#5688](https://github.com/Icinga/icinga2/issues/5688) (Documentation, PR): Fixed typos and punctuation
* [#5680](https://github.com/Icinga/icinga2/issues/5680) (Documentation): Review documentation for enhanced CSR signing and update migration chapter for 2.8
* [#5677](https://github.com/Icinga/icinga2/issues/5677) (Documentation, PR): Fix typo in threshold syntax documentation
* [#5668](https://github.com/Icinga/icinga2/issues/5668) (Documentation, PR): Enhance Monitoring Basics in the documentation
* [#5667](https://github.com/Icinga/icinga2/issues/5667) (Documentation): Explain which values can be used for set\_if in command arguments
* [#5666](https://github.com/Icinga/icinga2/issues/5666) (Documentation): Explain the notification with users defined on host/service in a dedicated docs chapter
* [#5665](https://github.com/Icinga/icinga2/issues/5665) (Documentation): Better explanations and iteration details for "apply for" documentation
* [#5664](https://github.com/Icinga/icinga2/issues/5664) (Documentation): Add usage examples to the "apply" chapter based on custom attribute values
* [#5663](https://github.com/Icinga/icinga2/issues/5663) (Documentation): Explain custom attribute value types and nested dictionaries
* [#5662](https://github.com/Icinga/icinga2/issues/5662) (Documentation): Explain how to use a different host check command
* [#5655](https://github.com/Icinga/icinga2/issues/5655) (Documentation, PR): Enhance documentation with more details on value types for object attributes
* [#5576](https://github.com/Icinga/icinga2/issues/5576) (Documentation, PR): Fixed downtime example in documentation
* [#5568](https://github.com/Icinga/icinga2/issues/5568) (Documentation, PR): Add documentation for multi-line plugin output for API actions
* [#5511](https://github.com/Icinga/icinga2/issues/5511) (Cluster, Documentation, Windows): SSL errors with leading zeros in certificate serials \(created \< v2.4\) with OpenSSL 1.1.0
* [#5379](https://github.com/Icinga/icinga2/issues/5379) (Documentation, PR): Set shell prompt for commands to be \#
* [#5186](https://github.com/Icinga/icinga2/issues/5186) (Documentation): Document boolean values understood by set\_if
* [#5060](https://github.com/Icinga/icinga2/issues/5060) (Documentation): Missing documentation for macro\(\)
* [#4015](https://github.com/Icinga/icinga2/issues/4015) (Documentation): Add documentation for host state calculation from plugin exit codes
* [#5765](https://github.com/Icinga/icinga2/issues/5765) (Configuration, PR): Fix default configuration example for ElasticsearchWriter
* [#5739](https://github.com/Icinga/icinga2/issues/5739) (Performance Data, PR): Rename ElasticWriter to ElasticsearchWriter
* [#5732](https://github.com/Icinga/icinga2/issues/5732) (Check Execution, DB IDO, PR): Fix flapping calculation and events
* [#5730](https://github.com/Icinga/icinga2/issues/5730) (PR): Add missing trims to GetMasterHostPort and remove Convert.ToString from variables that are strings already
* [#5719](https://github.com/Icinga/icinga2/issues/5719) (Cluster, Installation, Windows, PR): Update Windows Wizard for 2.8 and new signing methods
* [#5686](https://github.com/Icinga/icinga2/issues/5686) (Log): Ugly stacktrace with mismatching versions in cluster
* [#5643](https://github.com/Icinga/icinga2/issues/5643) (PR): Fix debug builds on Apple Clang 9.0.0 \(macOS High Sierra\)
* [#5637](https://github.com/Icinga/icinga2/issues/5637) (InfluxDB, PR): Fix unnecessary String\(\) casts in InfluxdbWriter
* [#5629](https://github.com/Icinga/icinga2/issues/5629) (InfluxDB, Performance Data, code-quality): Remove the unnecessary String\(\) casts in influxdbwriter.cpp
* [#5624](https://github.com/Icinga/icinga2/issues/5624) (PR): Fixed missing include statement in unit test
* [#5619](https://github.com/Icinga/icinga2/issues/5619) (Packages, PR): Exit early in changelog.py if GitHub API fetch fails
* [#5616](https://github.com/Icinga/icinga2/issues/5616) (PR): Fix a build warning
* [#5608](https://github.com/Icinga/icinga2/issues/5608) (CLI, Cluster, PR): Fix certificate paths for installers
* [#5604](https://github.com/Icinga/icinga2/issues/5604) (Packages, PR): Remove the icinga2-classicui-package and update documentation
* [#5601](https://github.com/Icinga/icinga2/issues/5601) (Installation, Packages, PR): Ensure that the cache directory always is set and add a note to upgrading docs
* [#5563](https://github.com/Icinga/icinga2/issues/5563) (Cluster, PR): Implement additional logging for the JsonRpc class
* [#5545](https://github.com/Icinga/icinga2/issues/5545) (Installation, Windows, PR): Add Edit button to Windows Setup Wizard
* [#5488](https://github.com/Icinga/icinga2/issues/5488) (code-quality, PR): Implement additional functions for printing values with LLDB/GDB
* [#5653](https://github.com/Icinga/icinga2/issues/5653) (Documentation, PR): Docs: Fix default value for `snmp\_nocrypt` for Manubulon CheckCommand definitions
* [#5652](https://github.com/Icinga/icinga2/issues/5652) (Documentation, PR): Docs: Fix missing default value for cluster-zone checks
* [#5632](https://github.com/Icinga/icinga2/issues/5632) (Documentation, PR): Docs: Mention SELinux in Getting Started chapter
* [#5537](https://github.com/Icinga/icinga2/issues/5537) (Plugins): check\_nscp\_api: support spaces in query arguments
* [#5524](https://github.com/Icinga/icinga2/issues/5524) (Cluster, PR): Change FIFO::Optimize\(\) frequency for large messages
* [#5513](https://github.com/Icinga/icinga2/issues/5513) (Cluster): Node in Cluster loses connection
* [#5504](https://github.com/Icinga/icinga2/issues/5504) (InfluxDB, PR): Fix TLS Race Connecting to InfluxDB
* [#5503](https://github.com/Icinga/icinga2/issues/5503) (Livestatus, PR): Fix grouping for Livestatus queries with 'Stats'
* [#5502](https://github.com/Icinga/icinga2/issues/5502) (Notifications, PR): Fix duplicate variable in notification scripts
* [#5495](https://github.com/Icinga/icinga2/issues/5495) (Notifications, PR): Fix parameter order for AcknowledgeSvcProblem / AcknowledgeHostProblem / apiactions:AcknowledgeProblem
* [#5492](https://github.com/Icinga/icinga2/issues/5492) (DB IDO): Comments may not be removed correctly
* [#5484](https://github.com/Icinga/icinga2/issues/5484) (Log): Timestamp comparison of config files logs a wrong message
* [#5483](https://github.com/Icinga/icinga2/issues/5483) (DB IDO, PR): Fix config validation for DB IDO categories 'DbCatEverything'
* [#5469](https://github.com/Icinga/icinga2/issues/5469) (InfluxDB): Failure to connect to InfluxDB increases CPU utilisation by 100% for every failure
* [#5466](https://github.com/Icinga/icinga2/issues/5466) (DB IDO, PR): DB IDO: Fix host's unreachable state in history tables
* [#5460](https://github.com/Icinga/icinga2/issues/5460) (InfluxDB): Icinga 2.7 InfluxdbWriter fails to write metrics to InfluxDB over HTTPS
* [#5458](https://github.com/Icinga/icinga2/issues/5458) (DB IDO): IDO donwtimehistory records orphaned from scheduleddowntime records following restart
* [#5405](https://github.com/Icinga/icinga2/issues/5405) (DB IDO): IDO statehistory table does not show hosts going to "UNREACHABLE" state.
* [#5078](https://github.com/Icinga/icinga2/issues/5078) (Compat, Livestatus): Livestatus hostsbygroup and servicesbyhostgroup do not work
### ITL
* [#5543](https://github.com/Icinga/icinga2/issues/5543) (ITL, PR): ITL: Correct arguments for ipmi-sensor CheckCommand
* [#5496](https://github.com/Icinga/icinga2/issues/5496) (Documentation, PR): Docs: Update examples for match/regex/cidr\_match and mode for arrays \(Match{All,Any}\)
* [#5476](https://github.com/Icinga/icinga2/issues/5476) (Documentation, PR): Docs: Fix ITL chapter TOC; add introduction with mini TOC
* [#5475](https://github.com/Icinga/icinga2/issues/5475) (Documentation, PR): Docs: Add a note on required configuration updates for new notification scripts in v2.7.0
* [#5529](https://github.com/Icinga/icinga2/issues/5529) (Log, PR): Change two more loglines for checkables so checkable is quoted
* [#5528](https://github.com/Icinga/icinga2/issues/5528) (Log, PR): Change loglines for checkables so checkable is quoted
* [#5501](https://github.com/Icinga/icinga2/issues/5501) (Installation, Packages, PR): SELinux: fixes for 2.7.0
* [#5479](https://github.com/Icinga/icinga2/issues/5479) (Packages): Icinga2 2.7.0 requires SELinux boolean icinga2\_can\_connect\_all on CentOS 7 even for default port
* [#5477](https://github.com/Icinga/icinga2/issues/5477) (Installation, Packages, PR): Systemd: Add DefaultTasksMax=infinity to service file
* [#5392](https://github.com/Icinga/icinga2/issues/5392) (Packages, PR): Ensure the cache directory exists
* [#4918](https://github.com/Icinga/icinga2/issues/4918) (Packages): cgroup: fork rejected by pids controller in /system.slice/icinga2.service
* [#4414](https://github.com/Icinga/icinga2/issues/4414) (Packages): /usr/lib/icinga2/prepare-dirs does not create /var/cache/icinga2
* New mail notification scripts. Please note that this requires a configuration update to NotificationCommand objects, Notification apply rules for specific settings and of course the notification scripts. More can be found [here](https://github.com/Icinga/icinga2/pull/5475).
* [#5295](https://github.com/Icinga/icinga2/issues/5295) (Notifications, PR): Fix missing apostrophe in notification log
* [#5292](https://github.com/Icinga/icinga2/issues/5292) (PR): Build fix for OpenSSL 0.9.8 and stack\_st\_X509\_EXTENSION
* [#5288](https://github.com/Icinga/icinga2/issues/5288) (Configuration): Hostgroup using assign for Host with groups = null segfault
* [#5278](https://github.com/Icinga/icinga2/issues/5278) (PR): Build fix for I2\_LEAK\_DEBUG
* [#5262](https://github.com/Icinga/icinga2/issues/5262) (Graylog, PR): Fix performance data processing in GelfWriter feature
* [#5259](https://github.com/Icinga/icinga2/issues/5259) (API, PR): Don't allow acknowledgement expire timestamps in the past
* [#5256](https://github.com/Icinga/icinga2/issues/5256) (Configuration): Config type changes break object serialization \(JsonEncode\)
* [#5250](https://github.com/Icinga/icinga2/issues/5250) (API, Compat): Acknowledgement expire time in the past
* [#5245](https://github.com/Icinga/icinga2/issues/5245) (Notifications, PR): Fix that host downtimes might be triggered even if their state is Up
* [#5224](https://github.com/Icinga/icinga2/issues/5224) (Configuration, Notifications): Icinga sends notifications even though a Downtime object exists
* [#5223](https://github.com/Icinga/icinga2/issues/5223) (Plugins, Windows): Wrong return Code for Windows ICMP
* [#5219](https://github.com/Icinga/icinga2/issues/5219) (InfluxDB): InfluxDBWriter feature might block and leak memory
* [#5211](https://github.com/Icinga/icinga2/issues/5211) (API, Cluster): Config received is always accepted by client even if own config is newer
* [#5194](https://github.com/Icinga/icinga2/issues/5194) (API, CLI): No subjectAltName in Icinga CA created CSRs
* [#5168](https://github.com/Icinga/icinga2/issues/5168) (Windows): include files from other volume/partition
* [#5146](https://github.com/Icinga/icinga2/issues/5146) (Configuration): parsing of scheduled downtime object allow typing range instead of ranges
* [#5132](https://github.com/Icinga/icinga2/issues/5132) (Graphite): GraphiteWriter can slow down Icinga's check result processing
* [#5043](https://github.com/Icinga/icinga2/issues/5043) (API): API POST request with 'attrs' as array returns bad\_cast error
* [#5040](https://github.com/Icinga/icinga2/issues/5040) (Cluster): CRL loading fails due to incorrect return code check
* [#5033](https://github.com/Icinga/icinga2/issues/5033) (DB IDO): Flexible downtimes which are not triggered must not update DB IDO's actual\_end\_time in downtimehistory table
* [#4984](https://github.com/Icinga/icinga2/issues/4984) (API): Wrong response type when unauthorized
* [#4983](https://github.com/Icinga/icinga2/issues/4983) (Livestatus): Typo in livestatus key worst\_services\_state for hostgroups table
* [#4956](https://github.com/Icinga/icinga2/issues/4956) (DB IDO, PR): Fix persistent comments for Acknowledgements
* [#4941](https://github.com/Icinga/icinga2/issues/4941) (Performance Data, PR): PerfData: Server Timeouts for InfluxDB Writer
* [#4709](https://github.com/Icinga/icinga2/issues/4709) (API): Posting config stage fails on FreeBSD
* [#4696](https://github.com/Icinga/icinga2/issues/4696) (Notifications): Notifications are sent when reloading Icinga 2 even though they're deactivated via modified attributes
* [#4666](https://github.com/Icinga/icinga2/issues/4666) (Graylog, Performance Data): GelfWriter with enable\_send\_perfdata breaks checks
* [#4532](https://github.com/Icinga/icinga2/issues/4532) (Graylog, Performance Data): Icinga 2 "hangs" if the GelfWriter cannot send messages
* [#4440](https://github.com/Icinga/icinga2/issues/4440) (DB IDO, Log): Exceptions might be better than exit in IDO
* [#3664](https://github.com/Icinga/icinga2/issues/3664) (DB IDO): mysql\_error cannot be used for mysql\_init
* [#3483](https://github.com/Icinga/icinga2/issues/3483) (Compat): Stacktrace on Command Pipe Error
* [#3410](https://github.com/Icinga/icinga2/issues/3410) (Livestatus): Livestatus: Problem with stats min operator
* [#121](https://github.com/Icinga/icinga2/issues/121) (CLI, PR): give only warnings if feature is already disabled
### ITL
* [#5384](https://github.com/Icinga/icinga2/issues/5384) (ITL, PR): Remove default value for 'dns\_query\_type'
* [#5383](https://github.com/Icinga/icinga2/issues/5383) (ITL): Monitoring-Plugins check\_dns command does not support the `-q` flag
* [#120](https://github.com/Icinga/icinga2/issues/120) (ITL, PR): Add new parameter for check\_http: -L: Wrap output in HTML link
* [#117](https://github.com/Icinga/icinga2/issues/117) (ITL, PR): Support --only-critical for check\_apt
* [#115](https://github.com/Icinga/icinga2/issues/115) (ITL, PR): Inverse Interface Switch for snmp-interface
* [#114](https://github.com/Icinga/icinga2/issues/114) (ITL, PR): Adding -A to snmp interfaces check
### Documentation
* [#5448](https://github.com/Icinga/icinga2/issues/5448) (Documentation, PR): Update documentation for 2.7.0
* [#5440](https://github.com/Icinga/icinga2/issues/5440) (Documentation, PR): Add missing notification state filter to documentation
* [#5425](https://github.com/Icinga/icinga2/issues/5425) (Documentation, PR): Fix formatting in API docs
* [#5410](https://github.com/Icinga/icinga2/issues/5410) (Documentation): Update docs for better compatibility with mkdocs
* [#5393](https://github.com/Icinga/icinga2/issues/5393) (Documentation, PR): Fix typo in the documentation
* [#5378](https://github.com/Icinga/icinga2/issues/5378) (Documentation, PR): Fixed warnings when using mkdocs
* [#5370](https://github.com/Icinga/icinga2/issues/5370) (Documentation, PR): Rename ChangeLog to CHANGELOG.md
* [#5366](https://github.com/Icinga/icinga2/issues/5366) (Documentation, PR): Fixed wrong node in documentation chapter Client/Satellite Linux Setup
* [#5365](https://github.com/Icinga/icinga2/issues/5365) (Documentation, PR): Update package documentation for Debian Stretch
* [#5358](https://github.com/Icinga/icinga2/issues/5358) (Documentation, PR): Add documentation for securing mysql on Debian/Ubuntu.
* [#5357](https://github.com/Icinga/icinga2/issues/5357) (Documentation, Notifications, PR): Notification Scripts: Ensure that mail from address works on Debian/RHEL/SUSE \(mailutils vs mailx\)
* [#5333](https://github.com/Icinga/icinga2/issues/5333) (Documentation, PR): Update documentation for enhanced notification scripts
* [#5324](https://github.com/Icinga/icinga2/issues/5324) (Documentation, PR): Fix phrasing in Getting Started chapter
* [#5317](https://github.com/Icinga/icinga2/issues/5317) (Documentation, PR): Fix typo in INSTALL.md
* [#5315](https://github.com/Icinga/icinga2/issues/5315) (Documentation, PR): Docs: Replace nagios-plugins by monitoring-plugins for Debian/Ubuntu
* [#5314](https://github.com/Icinga/icinga2/issues/5314) (Documentation, PR): Document Common name \(CN\) in client setup
* [#5309](https://github.com/Icinga/icinga2/issues/5309) (Documentation, PR): Docs: Replace the command pipe w/ the REST API as Icinga Web 2 requirement in 'Getting Started' chapter
* [#5291](https://github.com/Icinga/icinga2/issues/5291) (Documentation): Update docs for RHEL/CentOS 5 EOL
* [#5285](https://github.com/Icinga/icinga2/issues/5285) (Documentation, PR): Fix sysstat installation in troubleshooting docs
* [#5279](https://github.com/Icinga/icinga2/issues/5279) (Documentation, PR): Docs: Add API query example for acknowledgements w/o expire time
* [#5157](https://github.com/Icinga/icinga2/issues/5157) (Documentation): "Three Levels with master, Satellites, and Clients" chapter is not clear about client config
* [#5155](https://github.com/Icinga/icinga2/issues/5155) (Documentation): 3.5. Apply Rules topic in the docs needs work.
* [#5151](https://github.com/Icinga/icinga2/issues/5151) (Documentation, PR): Replace http:// links with https:// links where a secure website exists
* [#5150](https://github.com/Icinga/icinga2/issues/5150) (Documentation): Invalid links in documentation
* [#5149](https://github.com/Icinga/icinga2/issues/5149) (Documentation, PR): Update documentation, change http:// links to https:// links where a website exists
* [#5144](https://github.com/Icinga/icinga2/issues/5144) (Documentation): Extend troubleshooting docs w/ environment analysis and common tools
* [#5143](https://github.com/Icinga/icinga2/issues/5143) (Documentation): Docs: Explain how to include your own config tree instead of conf.d
* [#5142](https://github.com/Icinga/icinga2/issues/5142) (Documentation): Add an Elastic Stack Integrations chapter to feature documentation
* [#5140](https://github.com/Icinga/icinga2/issues/5140) (Documentation): Documentation should explain that runtime modifications are not immediately updated for "object list"
* [#5137](https://github.com/Icinga/icinga2/issues/5137) (Documentation): Doc updates: Getting Started w/ own config, Troubleshooting w/ debug console
* [#5111](https://github.com/Icinga/icinga2/issues/5111) (Documentation): Fix duration attribute requirement for schedule-downtime API action
* [#5104](https://github.com/Icinga/icinga2/issues/5104) (Documentation, PR): Correct link to nscp documentation
* [#5097](https://github.com/Icinga/icinga2/issues/5097) (Documentation): The last example for typeof\(\) is missing the result
* [#5090](https://github.com/Icinga/icinga2/issues/5090) (Cluster, Documentation): EventHandler to be executed at the endpoint
* [#5077](https://github.com/Icinga/icinga2/issues/5077) (Documentation): Replace the 'command' feature w/ the REST API for Icinga Web 2
* [#5016](https://github.com/Icinga/icinga2/issues/5016) (Documentation, ITL, PR): Add fuse.gvfs-fuse-daemon to disk\_exclude\_type
* [#5010](https://github.com/Icinga/icinga2/issues/5010) (Documentation): \[Documentation\] Missing parameter for SNMPv3 auth
* [#3560](https://github.com/Icinga/icinga2/issues/3560) (Documentation): Explain check\_memorys and check\_disks thresholds
* [#1880](https://github.com/Icinga/icinga2/issues/1880) (Documentation): add a section for 'monitoring the icinga2 node'
* [#5326](https://github.com/Icinga/icinga2/issues/5326) (Documentation, Installation, PR): Install the images directory containing the needed PNGs for the markd
* [#5177](https://github.com/Icinga/icinga2/issues/5177) (Packages): Issues Packing icinga 2.6.3 tar.gz to RPM
* [#5153](https://github.com/Icinga/icinga2/issues/5153) (Packages, PR): Changed dependency of selinux subpackage
* [#5127](https://github.com/Icinga/icinga2/issues/5127) (Installation, PR): Improve systemd service file
* [#5102](https://github.com/Icinga/icinga2/issues/5102) (Compat, Configuration, Packages): Deprecate the icinga2-classicui-config package
* [#5101](https://github.com/Icinga/icinga2/issues/5101) (Packages, Windows): Fix incorrect metadata for the Chocolatey package
* [#5100](https://github.com/Icinga/icinga2/issues/5100) (Packages, Windows): Update Chocolatey package to match current guidelines
* [#5094](https://github.com/Icinga/icinga2/issues/5094) (Cluster, Configuration): Log message "Object cannot be deleted because it was not created using the API"
* [#5087](https://github.com/Icinga/icinga2/issues/5087) (Configuration): Function metadata should show available arguments
* [#5042](https://github.com/Icinga/icinga2/issues/5042) (DB IDO, PR): Add link to upgrade documentation to log message
* [#4977](https://github.com/Icinga/icinga2/issues/4977) (Cluster, Installation): icinga2/api/log directory is not created
* [#4921](https://github.com/Icinga/icinga2/issues/4921) (Installation, Packages): No network dependency for /etc/init.d/icinga2
* [#5057](https://github.com/Icinga/icinga2/issues/5057) (Documentation): Update Security section in the Distributed Monitoring chapter
* [#5055](https://github.com/Icinga/icinga2/issues/5055) (Documentation, ITL): mysql\_socket attribute missing in the documentation for the mysql CheckCommand
* [#5035](https://github.com/Icinga/icinga2/issues/5035) (Documentation): Docs: Typo in Distributed Monitoring chapter
* [#5030](https://github.com/Icinga/icinga2/issues/5030) (Documentation): Advanced topics: Mention the API and explain stick acks, fixed/flexible downtimes
* [#4952](https://github.com/Icinga/icinga2/issues/4952) (API, CLI): Icinga crashes while trying to remove configuration files for objects which no longer exist
* The "bottom up" client configuration mode has been deprecated. Check [#13255](https://dev.icinga.com/issues/13255) for additional details and migration.
* There are 2 processes started instead of previously just one process.
* Windows client
* Package bundles NSClient++ 0.5.0. ITL CheckCommands have been updated too.
* Allow to configure the user account for the Icinga 2 service. This is useful if several checks require administrator permissions (e.g. check_update.exe)
* Bugfixes for check plugins
* Cluster and API
* Provide location information for objects and templates in the API
* Improve log message for ignored config updates
* Fix cluster resync problem with API created objects (hosts, downtimes, etc.)
* Fix that API-created objects in a global zone are not synced to child endpoints
* Notifications
* Several bugfixes for downtime, custom and flapping notifications
* New ITL CheckCommands: logstash, glusterfs, iostats
* Package builds require a compiler which supports C++11 features (gcc-c++ >= 4.7, clang++)
* DB IDO
* Schema upgrade required (2.6.0.sql)
* This update fixes timestamp columns required by Icinga Web 2 and might take a while. Please ensure to schedule a maintenance task for your database upgrade.
* [#4770](https://github.com/Icinga/icinga2/issues/4770) (API): Allow to evaluate macros through the API
* [#4713](https://github.com/Icinga/icinga2/issues/4713) (Cluster): Check whether nodes are synchronizing the API log before putting them into UNKNOWN
* [#4651](https://github.com/Icinga/icinga2/issues/4651) (Plugins): Review windows plugins performance output
* [#4631](https://github.com/Icinga/icinga2/issues/4631) (Configuration): Suppress compiler warnings for auto-generated code
* [#4622](https://github.com/Icinga/icinga2/issues/4622) (Cluster): Improve log message for ignored config updates
* [#4590](https://github.com/Icinga/icinga2/issues/4590): Make sure that libmethods is automatically loaded even when not using the ITL
* [#4587](https://github.com/Icinga/icinga2/issues/4587) (Configuration): Implement support for default templates
* [#4580](https://github.com/Icinga/icinga2/issues/4580) (API): Provide location information for objects and templates in the API
* [#4576](https://github.com/Icinga/icinga2/issues/4576): Use lambda functions for INITIALIZE\_ONCE
* [#4575](https://github.com/Icinga/icinga2/issues/4575): Use 'auto' for iterator declarations
* [#4571](https://github.com/Icinga/icinga2/issues/4571): Implement an rvalue constructor for the String and Value classes
* [#4570](https://github.com/Icinga/icinga2/issues/4570) (Configuration): Implement a command-line argument for "icinga2 console" to allow specifying a script file
* [#4831](https://github.com/Icinga/icinga2/issues/4831) (CLI): Wrong help string for node setup cli command argument --master\_host
* [#4828](https://github.com/Icinga/icinga2/issues/4828) (API): Crash in CreateObjectHandler \(regression from \#11684
* [#4802](https://github.com/Icinga/icinga2/issues/4802): Icinga tries to delete Downtime objects that were statically configured
* [#4801](https://github.com/Icinga/icinga2/issues/4801): Sending a HUP signal to the child process for execution actually kills it
* [#4791](https://github.com/Icinga/icinga2/issues/4791) (DB IDO): PostgreSQL: Don't use timestamp with timezone for UNIX timestamp columns
* [#4789](https://github.com/Icinga/icinga2/issues/4789) (Notifications): Recovery notifications sent for Not-Problem notification type if notified before
* [#4775](https://github.com/Icinga/icinga2/issues/4775) (Cluster): Crash w/ SendNotifications cluster handler and check result with empty perfdata
* [#4771](https://github.com/Icinga/icinga2/issues/4771): Config validation crashes when using command\_endpoint without also having an ApiListener object
* [#4752](https://github.com/Icinga/icinga2/issues/4752) (Graphite): Performance data writer for Graphite : Values without fraction limited to 2147483647 \(7FFFFFFF\)
* [#4740](https://github.com/Icinga/icinga2/issues/4740): SIGALRM handling may be affected by recent commit
* [#4726](https://github.com/Icinga/icinga2/issues/4726) (Notifications): Flapping notifications sent for soft state changes
* [#4717](https://github.com/Icinga/icinga2/issues/4717) (API): Icinga crashes while deleting a config file which doesn't exist anymore
* [#4678](https://github.com/Icinga/icinga2/issues/4678) (Configuration): Configuration validation fails when setting tls\_protocolmin to TLSv1.2
* [#4566](https://github.com/Icinga/icinga2/issues/4566) (Notifications): Fixed downtimes scheduled for a future date trigger DOWNTIMESTART notifications
* [#4564](https://github.com/Icinga/icinga2/issues/4564): Add missing initializer for WorkQueue::m\_NextTaskID
* [#3575](https://github.com/Icinga/icinga2/issues/3575) (DB IDO): MySQL 5.7.9, Incorrect datetime value Error
* [#3565](https://github.com/Icinga/icinga2/issues/3565) (Plugins): Windows Agent: performance data of check\_perfmon
* [#3564](https://github.com/Icinga/icinga2/issues/3564) (Plugins): Windows Agent: Performance data values for check\_perfmon.exe are invalid sometimes
* [#3220](https://github.com/Icinga/icinga2/issues/3220) (Plugins): Implement support for resolving DNS hostnames in check\_ping.exe
* [#2847](https://github.com/Icinga/icinga2/issues/2847): File descriptors are leaked to child processes which makes SELinux unhappy
### ITL
* [#4842](https://github.com/Icinga/icinga2/issues/4842) (ITL): Add tempdir attribute to postgres CheckCommand
* [#4837](https://github.com/Icinga/icinga2/issues/4837) (ITL): Add sudo option to mailq CheckCommand
* [#4836](https://github.com/Icinga/icinga2/issues/4836) (ITL): Add verbose parameter to http CheckCommand
* [#4835](https://github.com/Icinga/icinga2/issues/4835) (ITL): Add timeout option to mysql\_health CheckCommand
* [#4714](https://github.com/Icinga/icinga2/issues/4714) (ITL): Default values for check\_swap are incorrect
* [#4710](https://github.com/Icinga/icinga2/issues/4710) (ITL): snmp\_miblist variable to feed the -m option of check\_snmp is missing in the snmpv3 CheckCommand object
* [#4684](https://github.com/Icinga/icinga2/issues/4684) (ITL): Add a radius CheckCommand for the radius check provide by nagios-plugins
* [#4681](https://github.com/Icinga/icinga2/issues/4681) (ITL): Add CheckCommand definition for check\_logstash
* [#4677](https://github.com/Icinga/icinga2/issues/4677) (ITL): Problem passing arguments to nscp-local CheckCommand objects
* [#4672](https://github.com/Icinga/icinga2/issues/4672) (ITL): Add timeout option to oracle\_health CheckCommand
* [#4618](https://github.com/Icinga/icinga2/issues/4618) (ITL): Hangman easter egg is broken
* [#4608](https://github.com/Icinga/icinga2/issues/4608) (ITL): Add CheckCommand definition for check\_iostats
* [#4597](https://github.com/Icinga/icinga2/issues/4597) (ITL): Default disk plugin check should not check inodes
* [#4595](https://github.com/Icinga/icinga2/issues/4595) (ITL): Manubulon: Add missing procurve memory flag
* [#4585](https://github.com/Icinga/icinga2/issues/4585) (ITL): Fix code style violations in the ITL
* [#4582](https://github.com/Icinga/icinga2/issues/4582) (ITL): Incorrect help text for check\_swap
* [#4543](https://github.com/Icinga/icinga2/issues/4543) (ITL): ITL - check\_vmware\_esx - specify a datacenter/vsphere server for esx/host checks
* [#4324](https://github.com/Icinga/icinga2/issues/4324) (ITL): Add CheckCommand definition for check\_glusterfs
### Documentation
* [#4862](https://github.com/Icinga/icinga2/issues/4862) (Documentation): "2.1.4. Installation Paths" should contain systemd paths
* [#4861](https://github.com/Icinga/icinga2/issues/4861) (Documentation): Update "2.1.3. Enabled Features during Installation" - outdated "feature list"
* [#4859](https://github.com/Icinga/icinga2/issues/4859) (Documentation): Update package instructions for Fedora
* [#4851](https://github.com/Icinga/icinga2/issues/4851) (Documentation): Update README.md and correct project URLs
* [#4846](https://github.com/Icinga/icinga2/issues/4846) (Documentation): Add a note for boolean values in the disk CheckCommand section
* [#4845](https://github.com/Icinga/icinga2/issues/4845) (Documentation): Troubleshooting: Add examples for fetching the executed command line
* [#4840](https://github.com/Icinga/icinga2/issues/4840) (Documentation): Update Windows screenshots in the client documentation
* [#4838](https://github.com/Icinga/icinga2/issues/4838) (Documentation): Add example for concurrent\_checks in CheckerComponent object type
* [#4829](https://github.com/Icinga/icinga2/issues/4829) (Documentation): Missing API headers for X-HTTP-Method-Override
* [#4827](https://github.com/Icinga/icinga2/issues/4827) (Documentation): Fix example in PNP template docs
* [#4821](https://github.com/Icinga/icinga2/issues/4821) (Documentation): Add a note about removing "conf.d" on the client for "top down command endpoint" setups
* [#4809](https://github.com/Icinga/icinga2/issues/4809) (Documentation): Update API and Library Reference chapters
* [#4804](https://github.com/Icinga/icinga2/issues/4804) (Documentation): Add a note about default template import to the CheckCommand object
* [#4800](https://github.com/Icinga/icinga2/issues/4800) (Documentation): Docs: Typo in "CLI commands" chapter
* [#4793](https://github.com/Icinga/icinga2/issues/4793) (Documentation): Docs: ITL plugins contrib order
* [#4780](https://github.com/Icinga/icinga2/issues/4780) (Documentation): Add a note about pinning checks w/ command\_endpoint
* [#4736](https://github.com/Icinga/icinga2/issues/4736) (Documentation): Docs: wrong heading level for commands.conf and groups.conf
* [#4708](https://github.com/Icinga/icinga2/issues/4708) (Documentation): Add more Timeperiod examples in the documentation
* [#4706](https://github.com/Icinga/icinga2/issues/4706) (Documentation): Add an example of multi-parents configuration for the Migration chapter
* [#4705](https://github.com/Icinga/icinga2/issues/4705) (Documentation): Typo in the documentation
* [#4699](https://github.com/Icinga/icinga2/issues/4699) (Documentation): Fix some spelling mistakes
* [#4667](https://github.com/Icinga/icinga2/issues/4667) (Documentation): Add documentation for logrotation for the mainlog feature
* [#4653](https://github.com/Icinga/icinga2/issues/4653) (Documentation): Corrections for distributed monitoring chapter
* [#4641](https://github.com/Icinga/icinga2/issues/4641) (Documentation): Docs: Migrating Notification example tells about filters instead of types
* [#4639](https://github.com/Icinga/icinga2/issues/4639) (Documentation): GDB example in the documentation isn't working
* [#4636](https://github.com/Icinga/icinga2/issues/4636) (Documentation): Add development docs for writing a core dump file
* [#4601](https://github.com/Icinga/icinga2/issues/4601) (Documentation): Typo in distributed monitoring docs
* [#4596](https://github.com/Icinga/icinga2/issues/4596) (Documentation): Update service monitoring and distributed docs
* [#4589](https://github.com/Icinga/icinga2/issues/4589) (Documentation): Fix help output for update-links.py
* [#4584](https://github.com/Icinga/icinga2/issues/4584) (Documentation): Add missing reference to libmethods for the default ITL command templates
* [#4492](https://github.com/Icinga/icinga2/issues/4492) (Documentation): Add information about function 'range'
### Support
* [#4796](https://github.com/Icinga/icinga2/issues/4796) (Installation): Sort Changelog by category
* [#4792](https://github.com/Icinga/icinga2/issues/4792) (Tests): Add unit test for notification state/type filter checks
* [#4724](https://github.com/Icinga/icinga2/issues/4724) (Packages): Update .mailmap for icinga.com
* [#4671](https://github.com/Icinga/icinga2/issues/4671) (Packages): Windows Installer should include NSClient++ 0.5.0
* [#4612](https://github.com/Icinga/icinga2/issues/4612) (Tests): Unit tests randomly crash after the tests have completed
* [#4607](https://github.com/Icinga/icinga2/issues/4607) (Packages): Improve support for building the chocolatey package
* [#4588](https://github.com/Icinga/icinga2/issues/4588) (Installation): Use raw string literals in mkembedconfig
* [#4578](https://github.com/Icinga/icinga2/issues/4578) (Installation): Improve detection for the -flto compiler flag
* [#4569](https://github.com/Icinga/icinga2/issues/4569) (Installation): Set versions for all internal libraries
* [#4558](https://github.com/Icinga/icinga2/issues/4558) (Installation): Update cmake config to require a compiler that supports C++11
* [#4556](https://github.com/Icinga/icinga2/issues/4556) (Installation): logrotate file is not properly generated when the logrotate binary resides in /usr/bin
* [#4551](https://github.com/Icinga/icinga2/issues/4551) (Tests): Implement unit tests for state changes
* [#2943](https://github.com/Icinga/icinga2/issues/2943) (Installation): Make the user account configurable for the Windows service
* [#2792](https://github.com/Icinga/icinga2/issues/2792) (Tests): Livestatus tests don't work on OS X
* [#4511](https://github.com/Icinga/icinga2/issues/4511): ClrCheck is null on \*nix
* [#4505](https://github.com/Icinga/icinga2/issues/4505) (CLI): Cannot set ownership for user 'icinga' group 'icinga' on file '/var/lib/icinga2/ca/serial.txt'.
* [#4504](https://github.com/Icinga/icinga2/issues/4504) (API): API: events for DowntimeTriggered does not provide needed information
* [#4502](https://github.com/Icinga/icinga2/issues/4502) (DB IDO): IDO query fails due to key contraint violation for the icinga\_customvariablestatus table
* [#4501](https://github.com/Icinga/icinga2/issues/4501) (Cluster): DB IDO started before daemonizing \(no systemd\)
* [#4500](https://github.com/Icinga/icinga2/issues/4500) (DB IDO): Query for customvariablestatus incorrectly updates the host's/service's insert ID
* [#4499](https://github.com/Icinga/icinga2/issues/4499) (DB IDO): Insert fails for the icinga\_scheduleddowntime table due to duplicate key
* [#4497](https://github.com/Icinga/icinga2/issues/4497): Fix incorrect detection of the 'Concurrency' variable
* [#4496](https://github.com/Icinga/icinga2/issues/4496) (API): API: action schedule-downtime requires a duration also when fixed is true
* [#4495](https://github.com/Icinga/icinga2/issues/4495): Use hash-based serial numbers for new certificates
* [#4490](https://github.com/Icinga/icinga2/issues/4490) (Cluster): ClusterEvents::NotificationSentAllUsersAPIHandler\(\) does not set notified\_users
* [#4488](https://github.com/Icinga/icinga2/issues/4488): Replace GetType\(\)-\>GetName\(\) calls with GetReflectionType\(\)-\>GetName\(\)
* [#4484](https://github.com/Icinga/icinga2/issues/4484) (Cluster): Only allow sending command\_endpoint checks to directly connected child zones
* [#4483](https://github.com/Icinga/icinga2/issues/4483) (DB IDO): ido CheckCommand returns returns "Could not connect to database server" when HA enabled
* [#4481](https://github.com/Icinga/icinga2/issues/4481) (DB IDO): Fix the "ido" check command for use with command\_endpoint
* [#4478](https://github.com/Icinga/icinga2/issues/4478): CompatUtility::GetCheckableNotificationStateFilter is returning an incorrect value
* [#4476](https://github.com/Icinga/icinga2/issues/4476) (DB IDO): Importing mysql schema fails
* [#4475](https://github.com/Icinga/icinga2/issues/4475) (CLI): pki sign-csr does not log where it is writing the certificate file
* [#4472](https://github.com/Icinga/icinga2/issues/4472) (DB IDO): IDO marks objects as inactive on shutdown
* [#4471](https://github.com/Icinga/icinga2/issues/4471) (DB IDO): IDO does duplicate config updates
* [#4466](https://github.com/Icinga/icinga2/issues/4466) (Configuration): 'use' keyword cannot be used with templates
* [#4462](https://github.com/Icinga/icinga2/issues/4462) (Notifications): Add log message if notifications are forced \(i.e. filters are not checked\)
* [#4461](https://github.com/Icinga/icinga2/issues/4461) (Notifications): Notification resent, even if interval = 0
* [#4460](https://github.com/Icinga/icinga2/issues/4460) (DB IDO): Fixed downtime start does not update actual\_start\_time
* [#4458](https://github.com/Icinga/icinga2/issues/4458): Flexible downtimes should be removed after trigger\_time+duration
* [#4455](https://github.com/Icinga/icinga2/issues/4455): Disallow casting "" to an Object
* [#4447](https://github.com/Icinga/icinga2/issues/4447): Handle I/O errors while writing the Icinga state file more gracefully
* [#4413](https://github.com/Icinga/icinga2/issues/4413) (DB IDO): icinga2 empties custom variables, host-, servcie- and contactgroup members at the end of IDO database reconnection
* [#4412](https://github.com/Icinga/icinga2/issues/4412) (Notifications): Reminder notifications ignore HA mode
* [#4405](https://github.com/Icinga/icinga2/issues/4405) (DB IDO): Deprecation warning should include object type and name
* [#4401](https://github.com/Icinga/icinga2/issues/4401) (Performance Data): Incorrect escaping / formatting of perfdata to InfluxDB
* [#4399](https://github.com/Icinga/icinga2/issues/4399): Icinga stats min\_execution\_time and max\_execution\_time are invalid
* [#4394](https://github.com/Icinga/icinga2/issues/4394): icinga check reports "-1" for minimum latency and execution time and only uptime has a number but 0
* [#4391](https://github.com/Icinga/icinga2/issues/4391) (DB IDO): Do not clear {host,service,contact}group\_members tables on restart
* [#4384](https://github.com/Icinga/icinga2/issues/4384) (API): Fix URL encoding for '&'
* [#4378](https://github.com/Icinga/icinga2/issues/4378) (Notifications): Optimize two ObjectLocks into one in Notification::BeginExecuteNotification method
* [#4376](https://github.com/Icinga/icinga2/issues/4376) (Cluster): CheckerComponent sometimes fails to schedule checks in time
* [#4375](https://github.com/Icinga/icinga2/issues/4375) (Cluster): Duplicate messages for command\_endpoint w/ master and satellite
* [#4372](https://github.com/Icinga/icinga2/issues/4372) (API): state\_filters\_real shouldn't be visible in the API
* [#4371](https://github.com/Icinga/icinga2/issues/4371) (Notifications): notification.notification\_number runtime attribute returning 0 \(instead of 1\) in first notification e-mail
* [#4370](https://github.com/Icinga/icinga2/issues/4370): Test the change with HARD OK transitions
* [#4363](https://github.com/Icinga/icinga2/issues/4363) (DB IDO): IDO module starts threads before daemonize
* [#4356](https://github.com/Icinga/icinga2/issues/4356) (DB IDO): DB IDO query queue does not clean up with v2.4.10-520-g124c80b
* [#4349](https://github.com/Icinga/icinga2/issues/4349) (DB IDO): Add missing index on state history for DB IDO cleanup
* [#4345](https://github.com/Icinga/icinga2/issues/4345): Ensure to clear the SSL error queue before calling SSL\_{read,write,do\_handshake}
* [#4343](https://github.com/Icinga/icinga2/issues/4343) (Configuration): include\_recursive should gracefully handle inaccessible files
* [#4341](https://github.com/Icinga/icinga2/issues/4341) (API): Icinga incorrectly disconnects all endpoints if one has a wrong certificate
* [#4340](https://github.com/Icinga/icinga2/issues/4340) (DB IDO): deadlock in ido reconnect
* [#4329](https://github.com/Icinga/icinga2/issues/4329) (Performance Data): Key Escapes in InfluxDB Writer Don't Work
* [#4313](https://github.com/Icinga/icinga2/issues/4313) (Configuration): Icinga crashes when using include\_recursive in an object definition
* [#4278](https://github.com/Icinga/icinga2/issues/4278) (DB IDO): SOFT state changes with the same state are not logged
* [#4275](https://github.com/Icinga/icinga2/issues/4275) (API): Trying to delete an object protected by a permissions filter, ends up deleting all objects that match the filter instead
* [#4264](https://github.com/Icinga/icinga2/issues/4264) (Performance Data): InfluxWriter doesnt sanitize the data before sending
* [#4259](https://github.com/Icinga/icinga2/issues/4259): Flapping Notifications dependent on state change
* [#4258](https://github.com/Icinga/icinga2/issues/4258): last SOFT state should be hard \(max\_check\_attempts\)
* [#4257](https://github.com/Icinga/icinga2/issues/4257) (Configuration): Incorrect custom variable name in the hosts.conf example config
* [#4255](https://github.com/Icinga/icinga2/issues/4255) (Configuration): Config validation should not delete comments/downtimes w/o reference
* [#4244](https://github.com/Icinga/icinga2/issues/4244): SOFT OK-state after returning from a soft state
* [#4239](https://github.com/Icinga/icinga2/issues/4239) (Notifications): Downtime notifications do not pass author and comment
* [#4232](https://github.com/Icinga/icinga2/issues/4232): Problems with check scheduling for HARD state changes \(standalone/command\_endpoint\)
* [#4231](https://github.com/Icinga/icinga2/issues/4231) (DB IDO): Volatile check results for OK-\>OK transitions are logged into DB IDO statehistory
* [#4187](https://github.com/Icinga/icinga2/issues/4187): Icinga 2 client gets killed during network scans
* [#4171](https://github.com/Icinga/icinga2/issues/4171) (DB IDO): Outdated downtime/comments not removed from IDO database \(restart\)
* [#4134](https://github.com/Icinga/icinga2/issues/4134) (Configuration): Don't allow flow control keywords outside of other flow control constructs
* [#4121](https://github.com/Icinga/icinga2/issues/4121) (Notifications): notification interval = 0 not honoured in HA clusters
* [#4106](https://github.com/Icinga/icinga2/issues/4106) (Notifications): last\_problem\_notification should be synced in HA cluster
* [#4077](https://github.com/Icinga/icinga2/issues/4077): Numbers are not properly formatted in runtime macro strings
* [#4002](https://github.com/Icinga/icinga2/issues/4002): Don't violate POSIX by ensuring that the argument to usleep\(3\) is less than 1000000
* [#3954](https://github.com/Icinga/icinga2/issues/3954) (Cluster): High load when pinning command endpoint on HA cluster
* [#3949](https://github.com/Icinga/icinga2/issues/3949) (DB IDO): IDO: entry\_time of all comments is set to the date and time when Icinga 2 was restarted
* [#3902](https://github.com/Icinga/icinga2/issues/3902): Hang in TlsStream::Handshake
* [#3820](https://github.com/Icinga/icinga2/issues/3820) (Configuration): High CPU usage with self-referenced parent zone config
* [#3370](https://github.com/Icinga/icinga2/issues/3370): Race condition in CreatePipeOverlapped
* [#3365](https://github.com/Icinga/icinga2/issues/3365) (DB IDO): IDO: there is no usable object index on icinga\_{scheduleddowntime,comments}
* [#3364](https://github.com/Icinga/icinga2/issues/3364) (DB IDO): IDO: check\_source should not be a TEXT field
* [#3361](https://github.com/Icinga/icinga2/issues/3361) (DB IDO): Missing indexes for icinga\_endpoints\* and icinga\_zones\* tables in DB IDO schema
* [#3355](https://github.com/Icinga/icinga2/issues/3355) (DB IDO): IDO: icinga\_host/service\_groups alias columns are TEXT columns
* [#3229](https://github.com/Icinga/icinga2/issues/3229): Function::Invoke should optionally register ScriptFrame
* [#2996](https://github.com/Icinga/icinga2/issues/2996) (Cluster): Custom notification external commands do not work in a master-master setup
* [#2039](https://github.com/Icinga/icinga2/issues/2039): Disable immediate hard state after first checkresult
### ITL
* [#4518](https://github.com/Icinga/icinga2/issues/4518) (ITL): ITL uses unsupported arguments for check\_swap on Debian wheezy/Ubuntu trusty
* [#4506](https://github.com/Icinga/icinga2/issues/4506) (ITL): Add interfacetable CheckCommand options --trafficwithpkt and --snmp-maxmsgsize
* [#4477](https://github.com/Icinga/icinga2/issues/4477) (ITL): Add perfsyntax parameter to nscp-local-counter CheckCommand
* [#4456](https://github.com/Icinga/icinga2/issues/4456) (ITL): Add custom variables for all check\_swap arguments
* [#4437](https://github.com/Icinga/icinga2/issues/4437) (ITL): Add command definition for check\_mysql\_query
* [#4421](https://github.com/Icinga/icinga2/issues/4421) (ITL): -q option for check\_ntp\_time is wrong
* [#4416](https://github.com/Icinga/icinga2/issues/4416) (ITL): Add check command definition for check\_graphite
* [#4397](https://github.com/Icinga/icinga2/issues/4397) (ITL): A lot of missing parameters for \(latest\) mysql\_health
* [#4379](https://github.com/Icinga/icinga2/issues/4379) (ITL): Add support for "-A" command line switch to CheckCommand "snmp-process"
* [#4359](https://github.com/Icinga/icinga2/issues/4359) (ITL): ITL: check\_iftraffic64.pl default values, wrong postfix value in CheckCommand
* [#4332](https://github.com/Icinga/icinga2/issues/4332) (ITL): Add check command definition for db2\_health
* [#4305](https://github.com/Icinga/icinga2/issues/4305) (ITL): Add check command definitions for kdc and rbl
* [#4297](https://github.com/Icinga/icinga2/issues/4297) (ITL): add check command for plugin check\_apache\_status
* [#4276](https://github.com/Icinga/icinga2/issues/4276) (ITL): Adding option to access ifName for manubulon snmp-interface check command
* [#4254](https://github.com/Icinga/icinga2/issues/4254) (ITL): Add "fuse.gvfsd-fuse" to the list of excluded file systems for check\_disk
* [#4250](https://github.com/Icinga/icinga2/issues/4250) (ITL): Add CIM port parameter for esxi\_hardware CheckCommand
* [#4023](https://github.com/Icinga/icinga2/issues/4023) (ITL): Add "retries" option to check\_snmp command
* [#3711](https://github.com/Icinga/icinga2/issues/3711) (ITL): icinga2.conf: Include plugins-contrib, manubulon, windows-plugins, nscp by default
* [#3683](https://github.com/Icinga/icinga2/issues/3683) (ITL): Add IPv4/IPv6 support to the rest of the monitoring-plugins
* [#3012](https://github.com/Icinga/icinga2/issues/3012) (ITL): Extend CheckCommand definitions for nscp-local
### Documentation
* [#4521](https://github.com/Icinga/icinga2/issues/4521) (Documentation): Typo in Notification object documentation
* [#4517](https://github.com/Icinga/icinga2/issues/4517) (Documentation): Documentation is missing for the API permissions that are new in 2.5.0
* [#4513](https://github.com/Icinga/icinga2/issues/4513) (Documentation): Development docs: Add own section for gdb backtrace from a running process
* [#4510](https://github.com/Icinga/icinga2/issues/4510) (Documentation): Docs: API example uses wrong attribute name
* [#4489](https://github.com/Icinga/icinga2/issues/4489) (Documentation): Missing documentation for "legacy-timeperiod" template
* [#4470](https://github.com/Icinga/icinga2/issues/4470) (Documentation): The description for the http\_certificate attribute doesn't have the right default value
* [#4468](https://github.com/Icinga/icinga2/issues/4468) (Documentation): Add URL and short description for Monitoring Plugins inside the ITL documentation
* [#4453](https://github.com/Icinga/icinga2/issues/4453) (Documentation): Rewrite Client and Cluster chapter and; add service monitoring chapter
* [#4419](https://github.com/Icinga/icinga2/issues/4419) (Documentation): Incorrect API permission name for /v1/status in the documentation
* [#4396](https://github.com/Icinga/icinga2/issues/4396) (Documentation): Missing explanation for three level clusters with CSR auto-signing
* [#4395](https://github.com/Icinga/icinga2/issues/4395) (Documentation): Incorrect documentation about apply rules in zones.d directories
* [#4387](https://github.com/Icinga/icinga2/issues/4387) (Documentation): Improve author information about check\_yum
* [#4361](https://github.com/Icinga/icinga2/issues/4361) (Documentation): pkg-config is not listed as a build requirement in INSTALL.md
* [#4337](https://github.com/Icinga/icinga2/issues/4337) (Documentation): Add a note to the docs that API POST updates to custom attributes/groups won't trigger re-evaluation
* [#4333](https://github.com/Icinga/icinga2/issues/4333) (Documentation): Documentation: Setting up Plugins section is broken
* [#4328](https://github.com/Icinga/icinga2/issues/4328) (Documentation): Typo in Manubulon CheckCommand documentation
* [#4318](https://github.com/Icinga/icinga2/issues/4318) (Documentation): Migration docs still show unsupported CHANGE\_\*MODATTR external commands
* [#4306](https://github.com/Icinga/icinga2/issues/4306) (Documentation): Add a note about creating Zone/Endpoint objects with the API
* [#4299](https://github.com/Icinga/icinga2/issues/4299) (Documentation): Incorrect URL for API examples in the documentation
* [#4526](https://github.com/Icinga/icinga2/issues/4526) (Packages): Revert dependency on firewalld on RHEL
* [#4494](https://github.com/Icinga/icinga2/issues/4494) (Installation): Remove unused functions from icinga-installer
* [#4452](https://github.com/Icinga/icinga2/issues/4452) (Packages): Error compiling on windows due to changes in apilistener around minimum tls version
* [#4432](https://github.com/Icinga/icinga2/issues/4432) (Packages): Windows build broken since ref 11292
* [#4225](https://github.com/Icinga/icinga2/issues/4225) (Compat): Command Pipe thread 100% CPU Usage
* [#4224](https://github.com/Icinga/icinga2/issues/4224): Checks are not executed anymore on command
* [#4222](https://github.com/Icinga/icinga2/issues/4222) (Configuration): Segfault when trying to start 2.4.8
* [#4221](https://github.com/Icinga/icinga2/issues/4221) (Performance Data): Error: Function call 'rename' for file '/var/spool/icinga2/tmp/service-perfdata' failed with error code 2, 'No such file or directory'
* [#4149](https://github.com/Icinga/icinga2/issues/4149) (CLI): Implement SNI support for the CLI commands
* [#4103](https://github.com/Icinga/icinga2/issues/4103): Add support for subjectAltName in SSL certificates
* [#3919](https://github.com/Icinga/icinga2/issues/3919) (Configuration): Internal check for config problems
* [#3321](https://github.com/Icinga/icinga2/issues/3321): "icinga" check should have state WARNING when the last reload failed
* [#2993](https://github.com/Icinga/icinga2/issues/2993) (Performance Data): PerfdataWriter: Better failure handling for file renames across file systems
* [#2896](https://github.com/Icinga/icinga2/issues/2896) (Cluster): Alert config reload failures with the icinga check
* [#2468](https://github.com/Icinga/icinga2/issues/2468): Maximum concurrent service checks
* [#4210](https://github.com/Icinga/icinga2/issues/4210) (API): Incorrect variable names for joined fields in filters
* [#4204](https://github.com/Icinga/icinga2/issues/4204) (DB IDO): Ensure that program status updates are immediately updated in DB IDO
* [#4202](https://github.com/Icinga/icinga2/issues/4202) (API): API: Missing error handling for invalid JSON request body
* [#4182](https://github.com/Icinga/icinga2/issues/4182): Crash in UnameHelper
* [#4180](https://github.com/Icinga/icinga2/issues/4180): Expired downtimes are not removed
* [#4170](https://github.com/Icinga/icinga2/issues/4170) (API): Icinga Crash with the workflow Create\_Host-\> Downtime for the Host -\> Delete Downtime -\> Remove Host
* [#3881](https://github.com/Icinga/icinga2/issues/3881) (Cluster): Icinga2 agent gets stuck after disconnect and won't relay messages
* [#3707](https://github.com/Icinga/icinga2/issues/3707) (Configuration): Comments and downtimes of deleted checkable objects are not deleted
* [#3526](https://github.com/Icinga/icinga2/issues/3526): Icinga crashes with a segfault on receiving a lot of check results for nonexisting hosts/services
* [#3316](https://github.com/Icinga/icinga2/issues/3316) (Configuration): Service apply without name possible
### ITL
* [#4184](https://github.com/Icinga/icinga2/issues/4184) (ITL): 'disk' CheckCommand: Exclude 'cgroup' and 'tracefs' by default
* [#3634](https://github.com/Icinga/icinga2/issues/3634) (ITL): Provide icingacli in the ITL
### Documentation
* [#4205](https://github.com/Icinga/icinga2/issues/4205) (Documentation): Add the category to the generated changelog
* [#4131](https://github.com/Icinga/icinga2/issues/4131) (Configuration): Vim Syntax Highlighting does not work with assign where
* [#4116](https://github.com/Icinga/icinga2/issues/4116) (API): icinga2 crashes when a command\_endpoint is set, but the api feature is not active
* [#4114](https://github.com/Icinga/icinga2/issues/4114): Compiler warning in NotifyActive
* [#4109](https://github.com/Icinga/icinga2/issues/4109) (API): Navigation attributes are missing in /v1/objects/\<type\>
* [#4104](https://github.com/Icinga/icinga2/issues/4104) (Configuration): Segfault during config validation if host exists, service does not exist any longer and downtime expires
* [#4095](https://github.com/Icinga/icinga2/issues/4095): DowntimesExpireTimerHandler crashes Icinga2 with \<unknown function\>
* [#4089](https://github.com/Icinga/icinga2/issues/4089): Make the socket event engine configurable
* [#4078](https://github.com/Icinga/icinga2/issues/4078) (Configuration): Overwriting global type variables causes crash in ConfigItem::Commit\(\)
* [#4076](https://github.com/Icinga/icinga2/issues/4076) (API): API User gets wrongly authenticated \(client\_cn and no password\)
* [#4066](https://github.com/Icinga/icinga2/issues/4066): ConfigSync broken from 2.4.3. to 2.4.4 under Windows
* [#4056](https://github.com/Icinga/icinga2/issues/4056) (CLI): Remove semi-colons in the auto-generated configs
* [#4052](https://github.com/Icinga/icinga2/issues/4052) (API): Config validation for Notification objects should check whether the state filters are valid
* [#4057](https://github.com/Icinga/icinga2/issues/4057) (Documentation): Update the CentOS installation documentation
* [#4055](https://github.com/Icinga/icinga2/issues/4055) (Documentation): Add silent install / reference to NSClient++ to documentation
* [#4043](https://github.com/Icinga/icinga2/issues/4043) (Documentation): Docs: Remove the migration script chapter
* [#4041](https://github.com/Icinga/icinga2/issues/4041) (Documentation): Explain how to use functions for wildcard matches for arrays and/or dictionaries in assign where expressions
* [#4039](https://github.com/Icinga/icinga2/issues/4039) (Documentation): Update .mailmap for Markus Frosch
* [#3145](https://github.com/Icinga/icinga2/issues/3145) (Documentation): Add Windows setup wizard screenshots
### Support
* [#4127](https://github.com/Icinga/icinga2/issues/4127) (Installation): Windows installer does not copy "features-enabled" on upgrade
* [#4119](https://github.com/Icinga/icinga2/issues/4119) (Installation): Update chocolatey uninstall script for the MSI package
* [#4118](https://github.com/Icinga/icinga2/issues/4118) (Installation): icinga2-installer.exe doesn't wait until NSIS uninstall.exe exits
* [#4117](https://github.com/Icinga/icinga2/issues/4117) (Installation): Make sure to update the agent wizard banner
* [#4113](https://github.com/Icinga/icinga2/issues/4113) (Installation): Package fails to build on \*NIX
* [#4099](https://github.com/Icinga/icinga2/issues/4099) (Installation): make install overwrites configuration files
* [#4074](https://github.com/Icinga/icinga2/issues/4074) (Installation): FatalError\(\) returns when called before Application.Run
* [#4073](https://github.com/Icinga/icinga2/issues/4073) (Installation): Install 64-bit version of NSClient++ on 64-bit versions of Windows
* [#4072](https://github.com/Icinga/icinga2/issues/4072) (Installation): Update NSClient++ to version 0.4.4.19
* [#4069](https://github.com/Icinga/icinga2/issues/4069) (Installation): Error compiling icinga2 targeted for x64 on Windows
* [#4064](https://github.com/Icinga/icinga2/issues/4064) (Packages): Build 64-bit packages for Windows
* [#4053](https://github.com/Icinga/icinga2/issues/4053) (Installation): Icinga 2 Windows Agent does not honor install path during upgrade
* [#4032](https://github.com/Icinga/icinga2/issues/4032) (Packages): Remove dependency for .NET 3.5 from the chocolatey package
* [#3988](https://github.com/Icinga/icinga2/issues/3988) (Packages): Incorrect base URL in the icinga-rpm-release packages for Fedora
* [#3658](https://github.com/Icinga/icinga2/issues/3658) (Packages): Add application manifest for the Windows agent wizard
* [#2998](https://github.com/Icinga/icinga2/issues/2998) (Installation): logrotate fails since the "su" directive was removed
* [#4036](https://github.com/Icinga/icinga2/issues/4036) (CLI): Add the executed cli command to the Windows wizard error messages
* [#4019](https://github.com/Icinga/icinga2/issues/4019) (Configuration): Segmentation fault during 'icinga2 daemon -C'
* [#4017](https://github.com/Icinga/icinga2/issues/4017) (CLI): 'icinga2 feature list' fails when all features are disabled
* [#4008](https://github.com/Icinga/icinga2/issues/4008) (Configuration): Windows wizard error "too many arguments"
* [#4006](https://github.com/Icinga/icinga2/issues/4006): Volatile transitions from HARD NOT-OK-\>NOT-OK do not trigger notifications
* [#3996](https://github.com/Icinga/icinga2/issues/3996): epoll\_ctl might cause oops on Ubuntu trusty
* [#3990](https://github.com/Icinga/icinga2/issues/3990): Services status updated multiple times within check\_interval even though no retry was triggered
* [#3987](https://github.com/Icinga/icinga2/issues/3987): Incorrect check interval when passive check results are used
* [#3985](https://github.com/Icinga/icinga2/issues/3985): Active checks are executed even though passive results are submitted
* [#3981](https://github.com/Icinga/icinga2/issues/3981): DEL\_DOWNTIME\_BY\_HOST\_NAME does not accept optional arguments
* [#3961](https://github.com/Icinga/icinga2/issues/3961) (CLI): Wrong log message for trusted cert in node setup command
* [#3939](https://github.com/Icinga/icinga2/issues/3939) (CLI): Common name in node wizard isn't case sensitive
* [#3745](https://github.com/Icinga/icinga2/issues/3745) (API): Status code 200 even if an object could not be deleted.
* [#3742](https://github.com/Icinga/icinga2/issues/3742) (DB IDO): DB IDO: User notification type filters are incorrect
* [#3442](https://github.com/Icinga/icinga2/issues/3442) (API): MkDirP not working on Windows
* [#3439](https://github.com/Icinga/icinga2/issues/3439) (Notifications): Host notification type is PROBLEM but should be RECOVERY
* [#3303](https://github.com/Icinga/icinga2/issues/3303) (Notifications): Problem notifications while Flapping is active
* [#3153](https://github.com/Icinga/icinga2/issues/3153) (Notifications): Flapping notifications are sent for hosts/services which are in a downtime
### ITL
* [#3958](https://github.com/Icinga/icinga2/issues/3958) (ITL): Add "query" option to check\_postgres command.
* [#3908](https://github.com/Icinga/icinga2/issues/3908) (ITL): ITL: Missing documentation for nwc\_health "mode" parameter
* [#3484](https://github.com/Icinga/icinga2/issues/3484) (ITL): ITL: Allow to enforce specific SSL versions using the http check command
### Documentation
* [#4033](https://github.com/Icinga/icinga2/issues/4033) (Documentation): Update development docs to use 'thread apply all bt full'
* [#4018](https://github.com/Icinga/icinga2/issues/4018) (Documentation): Docs: Add API examples for creating services and check commands
* [#4009](https://github.com/Icinga/icinga2/issues/4009) (Documentation): Typo in API docs
* [#3845](https://github.com/Icinga/icinga2/issues/3845) (Documentation): Explain how to join hosts/services for /v1/objects/comments
* [#3755](https://github.com/Icinga/icinga2/issues/3755) (Documentation): http check's URI is really just Path
* [#3786](https://github.com/Icinga/icinga2/issues/3786) (DB IDO): Evaluate if CanExecuteQuery/FieldToEscapedString lead to exceptions on !m\_Connected
* [#3783](https://github.com/Icinga/icinga2/issues/3783) (DB IDO): Implement support for re-ordering groups of IDO queries
* [#3775](https://github.com/Icinga/icinga2/issues/3775) (Configuration): Config validation doesn't fail when templates are used as object names
* [#3774](https://github.com/Icinga/icinga2/issues/3774) (DB IDO): IDO breaks when writing to icinga\_programstatus with latest snapshots
* [#3773](https://github.com/Icinga/icinga2/issues/3773) (Configuration): Relative path in include\_zones does not work
* [#3766](https://github.com/Icinga/icinga2/issues/3766) (API): Cluster config sync ignores zones.d from API packages
* [#3765](https://github.com/Icinga/icinga2/issues/3765): Use NodeName in null and random checks
* [#3764](https://github.com/Icinga/icinga2/issues/3764) (DB IDO): Failed IDO query for icinga\_downtimehistory
* [#3752](https://github.com/Icinga/icinga2/issues/3752): Incorrect information in --version on Linux
* [#3741](https://github.com/Icinga/icinga2/issues/3741) (DB IDO): Avoid duplicate config and status updates on startup
* [#3735](https://github.com/Icinga/icinga2/issues/3735) (Configuration): Disallow lambda expressions where side-effect-free expressions are not allowed
* [#3730](https://github.com/Icinga/icinga2/issues/3730): Missing path in mkdir\(\) exceptions
* [#3728](https://github.com/Icinga/icinga2/issues/3728) (DB IDO): build of icinga2 with gcc 4.4.7 segfaulting with ido
* [#3722](https://github.com/Icinga/icinga2/issues/3722) (API): Missing num\_hosts\_pending in /v1/status/CIB
* [#3715](https://github.com/Icinga/icinga2/issues/3715) (CLI): node wizard does not remember user defined port
* [#3712](https://github.com/Icinga/icinga2/issues/3712) (CLI): Remove the local zone name question in node wizard
* [#3705](https://github.com/Icinga/icinga2/issues/3705) (API): API is not working on wheezy
* [#3704](https://github.com/Icinga/icinga2/issues/3704) (Cluster): ApiListener::ReplayLog can block with a lot of clients
* [#3702](https://github.com/Icinga/icinga2/issues/3702) (Cluster): Zone::CanAccessObject is very expensive
* [#3697](https://github.com/Icinga/icinga2/issues/3697) (Compat): Crash in ExternalCommandListener
* [#3677](https://github.com/Icinga/icinga2/issues/3677) (API): API queries cause memory leaks
* [#3613](https://github.com/Icinga/icinga2/issues/3613) (DB IDO): Non-UTF8 characters from plugins causes IDO to fail
* [#3606](https://github.com/Icinga/icinga2/issues/3606) (Plugins): check\_network performance data in invalid format
* [#3571](https://github.com/Icinga/icinga2/issues/3571) (Plugins): check\_memory and check\_swap plugins do unit conversion and rounding before percentage calculations resulting in imprecise percentages
* [#3946](https://github.com/Icinga/icinga2/issues/3946) (Documentation): Documentation: Unescaped pipe character in tables
* [#3893](https://github.com/Icinga/icinga2/issues/3893) (Documentation): Outdated link to icingaweb2-module-nagvis
* [#3892](https://github.com/Icinga/icinga2/issues/3892) (Documentation): Partially missing escaping in doc/7-icinga-template-library.md
* [#3861](https://github.com/Icinga/icinga2/issues/3861) (Documentation): Incorrect IdoPgSqlConnection Example in Documentation
* [#3850](https://github.com/Icinga/icinga2/issues/3850) (Documentation): Incorrect name in AUTHORS
* [#3836](https://github.com/Icinga/icinga2/issues/3836) (Documentation): Troubleshooting: Explain how to fetch the executed command
* [#3833](https://github.com/Icinga/icinga2/issues/3833) (Documentation): Better explaination for array values in "disk" CheckCommand docs
* [#3826](https://github.com/Icinga/icinga2/issues/3826) (Documentation): Add example how to use custom functions in attributes
* [#3808](https://github.com/Icinga/icinga2/issues/3808) (Documentation): Typos in the "troubleshooting" section of the documentation
* [#3793](https://github.com/Icinga/icinga2/issues/3793) (Documentation): "setting up check plugins" section should be enhanced with package manager examples
* [#3781](https://github.com/Icinga/icinga2/issues/3781) (Documentation): Formatting problem in "Advanced Filter" chapter
* [#3770](https://github.com/Icinga/icinga2/issues/3770) (Documentation): Missing documentation for API packages zones.d config sync
* [#3759](https://github.com/Icinga/icinga2/issues/3759) (Documentation): Missing SUSE repository for monitoring plugins documentation
* [#3748](https://github.com/Icinga/icinga2/issues/3748) (Documentation): Wrong postgresql-setup initdb command for RHEL7
* [#3550](https://github.com/Icinga/icinga2/issues/3550) (Documentation): A PgSQL DB for the IDO can't be created w/ UTF8
* [#3549](https://github.com/Icinga/icinga2/issues/3549) (Documentation): Incorrect SQL command for creating the user of the PostgreSQL DB for the IDO
### Support
* [#3900](https://github.com/Icinga/icinga2/issues/3900) (Packages): Windows build fails on InterlockedIncrement type
* [#3838](https://github.com/Icinga/icinga2/issues/3838) (Installation): Race condition when using systemd unit file
* [#3832](https://github.com/Icinga/icinga2/issues/3832) (Installation): Compiler warnings in lib/remote/base64.cpp
* [#3818](https://github.com/Icinga/icinga2/issues/3818) (Installation): Logrotate on systemd distros should use systemctl not service
* [#3771](https://github.com/Icinga/icinga2/issues/3771) (Installation): Build error with older CMake versions on VERSION\_LESS compare
* [#3769](https://github.com/Icinga/icinga2/issues/3769) (Packages): Windows build fails with latest git master
* [#3710](https://github.com/Icinga/icinga2/issues/3710) (CLI): Remove --master\_zone from --help because it is currently not implemented
* [#3689](https://github.com/Icinga/icinga2/issues/3689) (CLI): CLI command 'repository add' doesn't work
* [#3685](https://github.com/Icinga/icinga2/issues/3685) (CLI): node wizard checks for /var/lib/icinga2/ca directory but not the files
* [#3674](https://github.com/Icinga/icinga2/issues/3674): lib/base/process.cpp SIGSEGV on Debian squeeze / RHEL 6
* [#3671](https://github.com/Icinga/icinga2/issues/3671) (API): Icinga 2 crashes when ScheduledDowntime objects are used
* [#3670](https://github.com/Icinga/icinga2/issues/3670) (CLI): API setup command incorrectly overwrites existing certificates
* [#3665](https://github.com/Icinga/icinga2/issues/3665) (CLI): "node wizard" does not ask user to verify SSL certificate
### ITL
* [#3691](https://github.com/Icinga/icinga2/issues/3691) (ITL): Add running\_kernel\_use\_sudo option for the running\_kernel check
* [#3682](https://github.com/Icinga/icinga2/issues/3682) (ITL): Indentation in command-plugins.conf
* [#3657](https://github.com/Icinga/icinga2/issues/3657) (ITL): Add by\_ssh\_options argument for the check\_by\_ssh plugin
### Documentation
* [#3701](https://github.com/Icinga/icinga2/issues/3701) (Documentation): Incorrect path for icinga2 binary in development documentation
* [#3690](https://github.com/Icinga/icinga2/issues/3690) (Documentation): Fix typos in the documentation
* [#3673](https://github.com/Icinga/icinga2/issues/3673) (Documentation): Documentation for schedule-downtime is missing required paremeters
* [#3594](https://github.com/Icinga/icinga2/issues/3594) (Documentation): Documentation example in "Access Object Attributes at Runtime" doesn't work correctly
* [#3391](https://github.com/Icinga/icinga2/issues/3391) (Documentation): Incorrect web inject URL in documentation
### Support
* [#3699](https://github.com/Icinga/icinga2/issues/3699) (Installation): Windows setup wizard crashes when InstallDir registry key is not set
* [#3680](https://github.com/Icinga/icinga2/issues/3680) (Installation): Incorrect redirect for stderr in /usr/lib/icinga2/prepare-dirs
* [#3656](https://github.com/Icinga/icinga2/issues/3656) (Packages): Build fails on SLES 11 SP3 with GCC 4.8
* RESTful API with basic auth or client certificates
* Filters, types, permissions
* configuration package management
* query/create/modify/delete config objects at runtime
* status queries for global stats
* actions (e.g. acknowledge all service problems)
* event streams
* ITL and Plugin Check Command definitions
* The 'running_kernel' check command was moved to the plugins-contrib section. You have to update your config to include 'plugins-contrib'
* Configuration
* The global constants Enable* and Vars have been removed. Use the IcingaApplication object attributes instead.
* Features
* New Graphite tree. Please check the documentation how enable the legacy schema.
* IcingaStatusWriter feature has been deprecated and will be removed in future versions.
* Modified attributes are not exposed as bit mask to external interfaces anymore (api related changes). External commands like CHANGE_*_MODATTR have been removed.
* [#3669](https://github.com/Icinga/icinga2/issues/3669): Use notify\_one in WorkQueue::Enqueue
* [#3667](https://github.com/Icinga/icinga2/issues/3667): Utility::FormatErrorNumber fails when error message uses arguments
* [#3649](https://github.com/Icinga/icinga2/issues/3649) (DB IDO): Group memberships are not updated for runtime created objects
* [#3648](https://github.com/Icinga/icinga2/issues/3648) (API): API overwrites \(and then deletes\) config file when trying to create an object that already exists
* [#3647](https://github.com/Icinga/icinga2/issues/3647) (API): Don't allow users to set state attributes via PUT
* [#3645](https://github.com/Icinga/icinga2/issues/3645): Deadlock in MacroProcessor::EvaluateFunction
* [#3635](https://github.com/Icinga/icinga2/issues/3635): modify\_attribute: object cannot be cloned
* [#3633](https://github.com/Icinga/icinga2/issues/3633) (API): Detailed error message is missing when object creation via API fails
* [#3632](https://github.com/Icinga/icinga2/issues/3632) (API): API call doesn't fail when trying to use a template that doesn't exist
* [#3625](https://github.com/Icinga/icinga2/issues/3625): Improve location information for errors in API filters
* [#3622](https://github.com/Icinga/icinga2/issues/3622) (API): /v1/console should only use a single permission
* [#3620](https://github.com/Icinga/icinga2/issues/3620) (API): 'remove-comment' action does not support filters
* [#3619](https://github.com/Icinga/icinga2/issues/3619) (CLI): 'api setup' should create a user even when api feature is already enabled
* [#3618](https://github.com/Icinga/icinga2/issues/3618) (CLI): Autocompletion doesn't work in the debugger
* [#3617](https://github.com/Icinga/icinga2/issues/3617) (API): There's a variable called 'string' in filter expressions
* [#3602](https://github.com/Icinga/icinga2/issues/3602) (DB IDO): Async mysql queries aren't logged in the debug log
* [#3601](https://github.com/Icinga/icinga2/issues/3601): Don't validate custom attributes that aren't strings
* [#3600](https://github.com/Icinga/icinga2/issues/3600): Crash in ConfigWriter::EmitIdentifier
* [#3598](https://github.com/Icinga/icinga2/issues/3598) (CLI): Spaces do not work in command arguments
* [#3595](https://github.com/Icinga/icinga2/issues/3595) (DB IDO): Change session\_token to integer timestamp
* [#3593](https://github.com/Icinga/icinga2/issues/3593): Fix indentation for Dictionary::ToString
* [#3587](https://github.com/Icinga/icinga2/issues/3587): Crash in ConfigWriter::GetKeywords
* [#3586](https://github.com/Icinga/icinga2/issues/3586) (Cluster): Circular reference between \*Connection and TlsStream objects
* [#3583](https://github.com/Icinga/icinga2/issues/3583) (API): Mismatch on {comment,downtime}\_id vs internal name in the API
* [#3581](https://github.com/Icinga/icinga2/issues/3581): CreatePipeOverlapped is not thread-safe
* [#3579](https://github.com/Icinga/icinga2/issues/3579): Figure out whether we need the Checkable attributes state\_raw, last\_state\_raw, hard\_state\_raw
* [#3577](https://github.com/Icinga/icinga2/issues/3577) (Plugins): Increase the default timeout for OS checks
* [#3574](https://github.com/Icinga/icinga2/issues/3574) (API): Plural name rule not treating edge case correcly
* [#3554](https://github.com/Icinga/icinga2/issues/3554) (Configuration): Crash in IndexerExpression::GetReference when attempting to set an attribute on an object other than the current one
* [#3551](https://github.com/Icinga/icinga2/issues/3551) (Configuration): Line continuation is broken in 'icinga2 console'
* [#3548](https://github.com/Icinga/icinga2/issues/3548) (Configuration): Don't allow scripts to access FANoUserView attributes in sandbox mode
* [#3546](https://github.com/Icinga/icinga2/issues/3546) (Cluster): Improve error handling during log replay
* [#3536](https://github.com/Icinga/icinga2/issues/3536) (CLI): Improve --help output for the --log-level option
* [#3535](https://github.com/Icinga/icinga2/issues/3535) (CLI): "Command options" is empty when executing icinga2 without any argument.
* [#3534](https://github.com/Icinga/icinga2/issues/3534) (DB IDO): Custom variables aren't removed from the IDO database
* [#3524](https://github.com/Icinga/icinga2/issues/3524) (DB IDO): Changing a group's attributes causes duplicate rows in the icinga\_\*group\_members table
* [#3517](https://github.com/Icinga/icinga2/issues/3517): OpenBSD: hang during ConfigItem::ActivateItems\(\) in daemon startup
* [#3514](https://github.com/Icinga/icinga2/issues/3514) (CLI): Misleading wording in generated zones.conf
* [#3501](https://github.com/Icinga/icinga2/issues/3501) (API): restore\_attribute does not work in clusters
* [#3489](https://github.com/Icinga/icinga2/issues/3489) (API): Ensure that modified attributes work with clients with local config and no zone attribute
* [#3485](https://github.com/Icinga/icinga2/issues/3485) (API): Icinga2 API performance regression
* [#3482](https://github.com/Icinga/icinga2/issues/3482) (API): Version updates are not working properly
* [#3468](https://github.com/Icinga/icinga2/issues/3468) (CLI): icinga2 repository host add does not work
* [#3462](https://github.com/Icinga/icinga2/issues/3462): ConfigWriter::EmitValue should format floating point values properly
* [#3461](https://github.com/Icinga/icinga2/issues/3461) (API): Config sync does not set endpoint syncing and plays disconnect-sync ping-pong
* [#3459](https://github.com/Icinga/icinga2/issues/3459) (API): /v1/objects/\<type\> returns an HTTP error when there are no objects of that type
* [#3457](https://github.com/Icinga/icinga2/issues/3457) (API): Config Sync shouldn't send updates for objects the client doesn't have access to
* [#3451](https://github.com/Icinga/icinga2/issues/3451) (API): Properly encode URLs in Icinga Studio
* [#3448](https://github.com/Icinga/icinga2/issues/3448) (API): Use a temporary file for modified-attributes.conf updates
* [#3445](https://github.com/Icinga/icinga2/issues/3445) (Configuration): ASCII NULs don't work in string values
* [#3438](https://github.com/Icinga/icinga2/issues/3438) (API): URL parser is cutting off last character
* [#3434](https://github.com/Icinga/icinga2/issues/3434) (API): PerfdataValue is not properly serialised in status queries
* [#3433](https://github.com/Icinga/icinga2/issues/3433) (API): Move the Collection status handler to /v1/status
* [#3422](https://github.com/Icinga/icinga2/issues/3422) (Configuration): Detect infinite recursion in user scripts
* [#3411](https://github.com/Icinga/icinga2/issues/3411) (API): API actions do not follow REST guidelines
* [#3383](https://github.com/Icinga/icinga2/issues/3383) (DB IDO): Add object\_id where clause for icinga\_downtimehistory
* [#3345](https://github.com/Icinga/icinga2/issues/3345) (API): Error handling in HttpClient/icinga-studio
* [#3338](https://github.com/Icinga/icinga2/issues/3338) (CLI): Unused variable console\_type in consolecommand.cpp
* [#3336](https://github.com/Icinga/icinga2/issues/3336) (API): Filtering by name doesn't work
* [#3335](https://github.com/Icinga/icinga2/issues/3335) (API): HTTP keep-alive does not work with .NET WebClient
* [#3330](https://github.com/Icinga/icinga2/issues/3330): Unused variable 'dobj' in configobject.tcpp
* [#3328](https://github.com/Icinga/icinga2/issues/3328) (Configuration): Don't parse config files for branches not taken
* [#3315](https://github.com/Icinga/icinga2/issues/3315) (Configuration): Crash in ConfigCompiler::RegisterZoneDir
* [#3302](https://github.com/Icinga/icinga2/issues/3302) (API): Implement support for '.' when persisting modified attributes
* [#3301](https://github.com/Icinga/icinga2/issues/3301): Fix formatting in mkclass
* [#3264](https://github.com/Icinga/icinga2/issues/3264) (API): Do not let API users create objects with invalid names
* [#3250](https://github.com/Icinga/icinga2/issues/3250) (API): Missing conf.d or zones.d cause parse failure
* [#3248](https://github.com/Icinga/icinga2/issues/3248): Crash during cluster log replay
* [#3244](https://github.com/Icinga/icinga2/issues/3244) (CLI): Color codes in console prompt break line editing
* [#3242](https://github.com/Icinga/icinga2/issues/3242) (CLI): Crash in ScriptFrame::~ScriptFrame
* [#3227](https://github.com/Icinga/icinga2/issues/3227) (CLI): console autocompletion should take into account parent classes' prototypes
* [#3215](https://github.com/Icinga/icinga2/issues/3215) (API): win32 build: S\_ISDIR is undefined
* [#3205](https://github.com/Icinga/icinga2/issues/3205) (Configuration): ScriptFrame's 'Self' attribute gets corrupted when an expression throws an exception
* [#3202](https://github.com/Icinga/icinga2/issues/3202) (Configuration): Operator - should not work with "" and numbers
* [#3198](https://github.com/Icinga/icinga2/issues/3198): Accessing field ID 0 \("prototype"\) fails
* [#3087](https://github.com/Icinga/icinga2/issues/3087) (DB IDO): Fix incorrect datatype for the check\_source column in icinga\_statehistory table
* [#2974](https://github.com/Icinga/icinga2/issues/2974) (Configuration): Remove incorrect 'ignore where' expression from 'ssh' apply example
* [#2939](https://github.com/Icinga/icinga2/issues/2939) (Cluster): Wrong vars changed handler in api events
* [#2884](https://github.com/Icinga/icinga2/issues/2884) (DB IDO): PostgreSQL schema sets default timestamps w/o time zone
* [#2879](https://github.com/Icinga/icinga2/issues/2879): Compiler warnings with latest HEAD 5ac5f98
* [#2870](https://github.com/Icinga/icinga2/issues/2870) (DB IDO): pgsql driver does not have latest mysql changes synced
* [#2863](https://github.com/Icinga/icinga2/issues/2863) (Configuration): Crash in VMOps::FunctionCall
* [#2850](https://github.com/Icinga/icinga2/issues/2850) (Configuration): Validation fails even though field is not required
* [#2824](https://github.com/Icinga/icinga2/issues/2824) (DB IDO): Failed assertion in IdoMysqlConnection::FieldToEscapedString
* [#2808](https://github.com/Icinga/icinga2/issues/2808) (Configuration): Make default notifications include users from host.vars.notification.mail.users
* [#2803](https://github.com/Icinga/icinga2/issues/2803): Don't allow users to instantiate the StreamLogger class
### ITL
* [#3584](https://github.com/Icinga/icinga2/issues/3584) (ITL): Add ipv4/ipv6 only to tcp and http CheckCommand
* [#3582](https://github.com/Icinga/icinga2/issues/3582) (ITL): Add check command mysql
* [#2784](https://github.com/Icinga/icinga2/issues/2784) (ITL): Move the base command templates into libmethods
### Documentation
* [#3663](https://github.com/Icinga/icinga2/issues/3663) (Documentation): Update wxWidgets documentation for Icinga Studio
* [#3640](https://github.com/Icinga/icinga2/issues/3640) (Documentation): Explain DELETE for config stages/packages
* [#3638](https://github.com/Icinga/icinga2/issues/3638) (Documentation): Documentation for /v1/types
* [#3631](https://github.com/Icinga/icinga2/issues/3631) (Documentation): Documentation for the script debugger
* [#3630](https://github.com/Icinga/icinga2/issues/3630) (Documentation): Explain variable names for joined objects in filter expressions
* [#3629](https://github.com/Icinga/icinga2/issues/3629) (Documentation): Documentation for /v1/console
* [#3628](https://github.com/Icinga/icinga2/issues/3628) (Documentation): Mention wxWidget \(optional\) requirement in INSTALL.md
* [#3626](https://github.com/Icinga/icinga2/issues/3626) (Documentation): Icinga 2 API Docs
* [#3621](https://github.com/Icinga/icinga2/issues/3621) (Documentation): Documentation should not reference real host names
* [#3563](https://github.com/Icinga/icinga2/issues/3563) (Documentation): Documentation: Reorganize Livestatus and alternative frontends
* [#3547](https://github.com/Icinga/icinga2/issues/3547) (Documentation): Incorrect attribute name in the documentation
* [#3516](https://github.com/Icinga/icinga2/issues/3516) (Documentation): Add documentation for apply+for in the language reference chapter
* [#3511](https://github.com/Icinga/icinga2/issues/3511) (Documentation): Escaping $ not documented
* [#3500](https://github.com/Icinga/icinga2/issues/3500) (Documentation): Add 'support' tracker to changelog.py
* [#3477](https://github.com/Icinga/icinga2/issues/3477) (Documentation): Remove duplicated text in section "Apply Notifications to Hosts and Services"
* [#3426](https://github.com/Icinga/icinga2/issues/3426) (Documentation): Add documentation for api-users.conf and app.conf
* [#3478](https://github.com/Icinga/icinga2/issues/3478) (Documentation): Broken table layout in chapter 20
* [#3436](https://github.com/Icinga/icinga2/issues/3436) (Documentation): Clarify on cluster/client naming convention and add troubleshooting section
* [#3430](https://github.com/Icinga/icinga2/issues/3430) (Documentation): Find a better description for cluster communication requirements
* [#3409](https://github.com/Icinga/icinga2/issues/3409) (Documentation): Windows Check Update -\> Access denied
* [#3408](https://github.com/Icinga/icinga2/issues/3408) (Documentation): Improve documentation for check\_memory
* [#3406](https://github.com/Icinga/icinga2/issues/3406) (Documentation): Update graphing section in the docs
* [#3402](https://github.com/Icinga/icinga2/issues/3402) (Documentation): Update debug docs for core dumps and full backtraces
* [#3351](https://github.com/Icinga/icinga2/issues/3351) (Documentation): Command Execution Bridge: Use of same endpoint names in examples for a better understanding
* [#3092](https://github.com/Icinga/icinga2/issues/3092) (Documentation): Add FreeBSD setup to getting started
### Support
* [#3379](https://github.com/Icinga/icinga2/issues/3379) (Installation): Rather use unique SID when granting rights for folders in NSIS on Windows Client
* [#3045](https://github.com/Icinga/icinga2/issues/3045) (Packages): icinga2 ido mysql misspelled database username
* [#3254](https://github.com/Icinga/icinga2/issues/3254) (Livestatus): Use an empty dictionary for the 'this' scope when executing commands with Livestatus
* [#3253](https://github.com/Icinga/icinga2/issues/3253): Implement the Dictionary\#keys method
* [#3206](https://github.com/Icinga/icinga2/issues/3206): Implement Dictionary\#get and Array\#get
* [#3170](https://github.com/Icinga/icinga2/issues/3170) (Configuration): Adding "-r" parameter to the check\_load command for dividing the load averages by the number of CPUs.
* [#3305](https://github.com/Icinga/icinga2/issues/3305) (Configuration): Icinga2 - too many open files - Exception
* [#3299](https://github.com/Icinga/icinga2/issues/3299): Utility::Glob on Windows doesn't support wildcards in all but the last path component
* [#3292](https://github.com/Icinga/icinga2/issues/3292): Serial number field is not properly initialized for CA certificates
* [#3279](https://github.com/Icinga/icinga2/issues/3279) (DB IDO): Add missing category for IDO query
* [#3266](https://github.com/Icinga/icinga2/issues/3266) (Plugins): Default disk checks on Windows fail because check\_disk doesn't support -K
* [#3260](https://github.com/Icinga/icinga2/issues/3260): First SOFT state is recognized as second SOFT state
* [#3255](https://github.com/Icinga/icinga2/issues/3255) (Cluster): Warning about invalid API function icinga::Hello
* [#3241](https://github.com/Icinga/icinga2/issues/3241): Agent freezes when the check returns massive output
* [#3222](https://github.com/Icinga/icinga2/issues/3222) (Configuration): Dict initializer incorrectly re-initializes field that is set to an empty string
* [#3211](https://github.com/Icinga/icinga2/issues/3211) (Configuration): Operator + is inconsistent when used with empty and non-empty strings
* [#3200](https://github.com/Icinga/icinga2/issues/3200) (CLI): icinga2 node wizard don't take zone\_name input
* [#3199](https://github.com/Icinga/icinga2/issues/3199): Trying to set a field for a non-object instance fails
* [#3196](https://github.com/Icinga/icinga2/issues/3196) (Cluster): Add log for missing EventCommand for command\_endpoints
* [#3194](https://github.com/Icinga/icinga2/issues/3194): Set correct X509 version for certificates
* [#3149](https://github.com/Icinga/icinga2/issues/3149) (CLI): missing config warning on empty port in endpoints
* [#3010](https://github.com/Icinga/icinga2/issues/3010) (Cluster): cluster check w/ immediate parent and child zone endpoints
* [#2867](https://github.com/Icinga/icinga2/issues/2867): Missing DEL\_DOWNTIME\_BY\_HOST\_NAME command required by Classic UI 1.x
* [#2352](https://github.com/Icinga/icinga2/issues/2352) (Cluster): Reload does not work on Windows
### ITL
* [#3320](https://github.com/Icinga/icinga2/issues/3320) (ITL): Add new arguments openvmtools for Open VM Tools
* [#3118](https://github.com/Icinga/icinga2/issues/3118) (Cluster): Generated certificates cannot be verified w/ openssl 0.9.8j on SLES 11
* [#3098](https://github.com/Icinga/icinga2/issues/3098) (Cluster): Add log message for discarded cluster events \(e.g. from unauthenticated clients\)
* [#3097](https://github.com/Icinga/icinga2/issues/3097): Fix stability issues in the TlsStream/Stream classes
* [#3088](https://github.com/Icinga/icinga2/issues/3088) (Cluster): Windows client w/ command\_endpoint broken with $nscp\_path$ and NscpPath detection
* [#3084](https://github.com/Icinga/icinga2/issues/3084) (CLI): node setup: indent accept\_config and accept\_commands
* [#3074](https://github.com/Icinga/icinga2/issues/3074) (Notifications): Functions can't be specified as command arguments
* [#2979](https://github.com/Icinga/icinga2/issues/2979) (CLI): port empty when using icinga2 node wizard
### ITL
* [#3132](https://github.com/Icinga/icinga2/issues/3132) (ITL): new options for smtp CheckCommand
* [#3125](https://github.com/Icinga/icinga2/issues/3125) (ITL): Add new options for ntp\_time CheckCommand
* [#3123](https://github.com/Icinga/icinga2/issues/3123) (Packages): Require gcc47-c++ on sles11 from SLES software development kit repository
* [#3122](https://github.com/Icinga/icinga2/issues/3122) (Packages): mysql-devel is not available in sles11sp3
* [#3081](https://github.com/Icinga/icinga2/issues/3081) (Installation): changelog.py: Allow to define project, make custom\_fields and changes optional
* [#3073](https://github.com/Icinga/icinga2/issues/3073) (Installation): Enhance changelog.py with wordpress blogpost output
* [#2651](https://github.com/Icinga/icinga2/issues/2651) (Packages): Add Icinga 2 to Chocolatey Windows Repository
* [#3051](https://github.com/Icinga/icinga2/issues/3051) (Plugins): plugins-contrib.d/databases.conf: wrong argument for mssql\_health
* [#3043](https://github.com/Icinga/icinga2/issues/3043) (Compat): Multiline vars are broken in objects.cache output
* [#3039](https://github.com/Icinga/icinga2/issues/3039) (Compat): Multi line output not correctly handled from compat channels
* [#3007](https://github.com/Icinga/icinga2/issues/3007) (Configuration): Disk and 'icinga' services are missing in the default Windows config
* [#3006](https://github.com/Icinga/icinga2/issues/3006) (Configuration): Some checks in the default Windows configuration fail
* [#2986](https://github.com/Icinga/icinga2/issues/2986) (DB IDO): Missing custom attributes in backends if name is equal to object attribute
* [#2952](https://github.com/Icinga/icinga2/issues/2952) (DB IDO): Incorrect type and state filter mapping for User objects in DB IDO
* [#2951](https://github.com/Icinga/icinga2/issues/2951) (DB IDO): Downtimes are always "fixed"
* [#2945](https://github.com/Icinga/icinga2/issues/2945) (DB IDO): Possible DB deadlock
* [#2940](https://github.com/Icinga/icinga2/issues/2940) (Configuration): node update-config reports critical and warning
* [#2935](https://github.com/Icinga/icinga2/issues/2935) (Configuration): WIN: syslog is not an enable-able feature in windows
* [#2894](https://github.com/Icinga/icinga2/issues/2894) (DB IDO): Wrong timestamps w/ historical data replay in DB IDO
* [#2839](https://github.com/Icinga/icinga2/issues/2839) (CLI): Node wont connect properly to master if host is is not set for Endpoint on new installs
* [#2836](https://github.com/Icinga/icinga2/issues/2836): Icinga2 --version: Error showing Distribution
* [#2819](https://github.com/Icinga/icinga2/issues/2819) (Configuration): Syntax Highlighting: host.address vs host.add
### ITL
* [#3019](https://github.com/Icinga/icinga2/issues/3019) (ITL): Add 'iftraffic' to plugins-contrib check command definitions
* [#3049](https://github.com/Icinga/icinga2/issues/3049) (Documentation): Update documentation for escape sequences
* [#3036](https://github.com/Icinga/icinga2/issues/3036) (Documentation): Explain string concatenation in objects by real-world example
* [#3035](https://github.com/Icinga/icinga2/issues/3035) (Documentation): Use a more simple example for passing command parameters
* [#3033](https://github.com/Icinga/icinga2/issues/3033) (Documentation): Add local variable scope for \*Command to documentation \(host, service, etc\)
* [#3032](https://github.com/Icinga/icinga2/issues/3032) (Documentation): Add typeof in 'assign/ignore where' expression as example
* [#3030](https://github.com/Icinga/icinga2/issues/3030) (Documentation): Add examples for function usage in "set\_if" and "command" attributes
* [#3024](https://github.com/Icinga/icinga2/issues/3024) (Documentation): Best practices: cluster config sync
* [#3017](https://github.com/Icinga/icinga2/issues/3017) (Documentation): Update service apply for documentation
* [#3015](https://github.com/Icinga/icinga2/issues/3015) (Documentation): Typo in Configuration Best Practice
* [#2966](https://github.com/Icinga/icinga2/issues/2966) (Documentation): Include Windows support details in the documentation
* [#2965](https://github.com/Icinga/icinga2/issues/2965) (Documentation): ITL Documentation: Add a link for passing custom attributes as command parameters
* [#2950](https://github.com/Icinga/icinga2/issues/2950) (Documentation): Missing "\)" in last Apply Rules example
* [#2279](https://github.com/Icinga/icinga2/issues/2279) (Documentation): Add documentation and CheckCommands for the windows plugins
### Support
* [#3016](https://github.com/Icinga/icinga2/issues/3016) (Installation): Wrong permission etc on windows
* [#3011](https://github.com/Icinga/icinga2/issues/3011) (Installation): Add support for installing NSClient++ in the Icinga 2 Windows wizard
* [#3005](https://github.com/Icinga/icinga2/issues/3005) (Installation): Determine NSClient++ installation path using MsiGetComponentPath
* [#3004](https://github.com/Icinga/icinga2/issues/3004) (Installation): --scm-installs fails when the service is already installed
* [#2994](https://github.com/Icinga/icinga2/issues/2994) (Installation): Bundle NSClient++ in Windows Installer
* [#2973](https://github.com/Icinga/icinga2/issues/2973) (Packages): SPEC: Give group write permissions for perfdata dir
* [#2451](https://github.com/Icinga/icinga2/issues/2451) (Installation): Extend Windows installer with an update mode
* [#2886](https://github.com/Icinga/icinga2/issues/2886): Acknowledging problems w/ expire time does not add the expiry information to the related comment for IDO and compat
* [#2883](https://github.com/Icinga/icinga2/issues/2883) (Notifications): Multiple log messages w/ "Attempting to send notifications for notification object"
* [#2882](https://github.com/Icinga/icinga2/issues/2882) (DB IDO): scheduled\_downtime\_depth column is not reset when a downtime ends or when a downtime is being removed
* [#2881](https://github.com/Icinga/icinga2/issues/2881) (DB IDO): Downtimes which have been triggered are not properly recorded in the database
* [#2878](https://github.com/Icinga/icinga2/issues/2878) (DB IDO): Don't update scheduleddowntime table w/ trigger\_time column when only adding a downtime
* [#2855](https://github.com/Icinga/icinga2/issues/2855): Fix complexity class for Dictionary::Get
* [#2853](https://github.com/Icinga/icinga2/issues/2853) (CLI): Node wizard should only accept 'y', 'n', 'Y' and 'N' as answers for boolean questions
* [#2842](https://github.com/Icinga/icinga2/issues/2842) (Configuration): Default max\_check\_attempts should be lower for hosts than for services
* [#2840](https://github.com/Icinga/icinga2/issues/2840) (Configuration): Validation errors for time ranges which span the DST transition
* [#2827](https://github.com/Icinga/icinga2/issues/2827) (Configuration): logrotate does not work
* [#2801](https://github.com/Icinga/icinga2/issues/2801) (Cluster): command\_endpoint check\_results are not replicated to other endpoints in the same zone
### ITL
* [#2891](https://github.com/Icinga/icinga2/issues/2891) (ITL): web.conf is not in the RPM package
* [#2890](https://github.com/Icinga/icinga2/issues/2890) (ITL): check\_disk order of command arguments
* [#2834](https://github.com/Icinga/icinga2/issues/2834) (ITL): Add arguments to the UPS check
* [#2770](https://github.com/Icinga/icinga2/issues/2770) (ITL): Add database plugins to ITL
### Documentation
* [#2902](https://github.com/Icinga/icinga2/issues/2902) (Documentation): Documentation: set\_if usage with boolean values and functions
* [#2876](https://github.com/Icinga/icinga2/issues/2876) (Documentation): Typo in graphite feature enable documentation
* [#2868](https://github.com/Icinga/icinga2/issues/2868) (Documentation): Fix a typo
* [#2843](https://github.com/Icinga/icinga2/issues/2843) (Documentation): Add explanatory note for Icinga2 client documentation
* [#2837](https://github.com/Icinga/icinga2/issues/2837) (Documentation): Fix a minor markdown error
* [#2832](https://github.com/Icinga/icinga2/issues/2832) (Documentation): Reword documentation of check\_address
### Support
* [#2888](https://github.com/Icinga/icinga2/issues/2888) (Installation): Vim syntax: Match groups before host/service/user objects
* [#2852](https://github.com/Icinga/icinga2/issues/2852) (Installation): Windows Build: Flex detection
* [#2793](https://github.com/Icinga/icinga2/issues/2793) (Packages): logrotate doesn't work on Ubuntu
* [#2828](https://github.com/Icinga/icinga2/issues/2828): Array in command arguments doesn't work
* [#2818](https://github.com/Icinga/icinga2/issues/2818) (Configuration): Local variables in "apply for" are overridden
* [#2816](https://github.com/Icinga/icinga2/issues/2816) (CLI): Segmentation fault when executing "icinga2 pki new-cert"
* [#2812](https://github.com/Icinga/icinga2/issues/2812) (Configuration): Return doesn't work inside loops
* [#2807](https://github.com/Icinga/icinga2/issues/2807) (Configuration): Figure out why command validators are not triggered
* [#2778](https://github.com/Icinga/icinga2/issues/2778) (Configuration): object Notification + apply Service fails with error "...refers to service which doesn't exist"
* [#2772](https://github.com/Icinga/icinga2/issues/2772) (Plugins): Plugin "check\_http" is missing in Windows environments
* [#2768](https://github.com/Icinga/icinga2/issues/2768) (Configuration): Add missing keywords in the syntax highlighting files
* [#2760](https://github.com/Icinga/icinga2/issues/2760): Don't ignore extraneous arguments for functions
* [#2753](https://github.com/Icinga/icinga2/issues/2753) (DB IDO): Don't update custom vars for each status update
* [#2752](https://github.com/Icinga/icinga2/issues/2752): startup.log broken when the DB schema needs an update
* [#2749](https://github.com/Icinga/icinga2/issues/2749) (Configuration): Missing config validator for command arguments 'set\_if'
* [#2718](https://github.com/Icinga/icinga2/issues/2718) (Configuration): Update syntax highlighting for 2.3 features
* [#2557](https://github.com/Icinga/icinga2/issues/2557) (Configuration): Improve error message for invalid field access
* [#2548](https://github.com/Icinga/icinga2/issues/2548) (Configuration): Fix VIM syntax highlighting for comments
### ITL
* [#2823](https://github.com/Icinga/icinga2/issues/2823) (ITL): wrong 'dns\_lookup' custom attribute default in command-plugins.conf
* [#2799](https://github.com/Icinga/icinga2/issues/2799) (ITL): Add "random" CheckCommand for test and demo purposes
### Documentation
* [#2825](https://github.com/Icinga/icinga2/issues/2825) (Documentation): Fix incorrect perfdata templates in the documentation
* [#2806](https://github.com/Icinga/icinga2/issues/2806) (Documentation): Move release info in INSTALL.md into a separate file
* [#2779](https://github.com/Icinga/icinga2/issues/2779) (Documentation): Correct HA documentation
* [#2777](https://github.com/Icinga/icinga2/issues/2777) (Documentation): Typo and invalid example in the runtime macro documentation
* [#2776](https://github.com/Icinga/icinga2/issues/2776) (Documentation): Remove prompt to create a TicketSalt from the wizard
* [#2775](https://github.com/Icinga/icinga2/issues/2775) (Documentation): Explain processing logic/order of apply rules with for loops
* [#2773](https://github.com/Icinga/icinga2/issues/2773) (Documentation): Typo in doc library-reference
* [#2765](https://github.com/Icinga/icinga2/issues/2765) (Documentation): Fix a typo in the documentation of ICINGA2\_WITH\_MYSQL and ICINGA2\_WITH\_PGSQL
* [#2756](https://github.com/Icinga/icinga2/issues/2756) (Documentation): Add "access objects at runtime" examples to advanced section
* [#2738](https://github.com/Icinga/icinga2/issues/2738) (Documentation): Update documentation for "apply for" rules
* [#2501](https://github.com/Icinga/icinga2/issues/2501) (Documentation): Re-order the object types in alphabetical order
### Support
* [#2762](https://github.com/Icinga/icinga2/issues/2762) (Installation): Flex version check does not reject unsupported versions
* [#2761](https://github.com/Icinga/icinga2/issues/2761) (Installation): Build warnings with CMake 3.1.3
Please note that this version fixes the default thresholds for the disk check which were inadvertently broken in 2.3.0; if you're using percent-based custom thresholds you will need to add the '%' sign to your custom attributes
* [#2704](https://github.com/Icinga/icinga2/issues/2704): Support the SNI TLS extension
* [#2702](https://github.com/Icinga/icinga2/issues/2702): Add validator for time ranges in ScheduledDowntime objects
* [#2701](https://github.com/Icinga/icinga2/issues/2701): Remove macro argument for IMPL\_TYPE\_LOOKUP
* [#2696](https://github.com/Icinga/icinga2/issues/2696): Include GDB backtrace in crash reports
* [#2678](https://github.com/Icinga/icinga2/issues/2678) (Configuration): Add support for else-if
* [#2663](https://github.com/Icinga/icinga2/issues/2663) (Livestatus): Change Livestatus query log level to 'notice'
* [#2657](https://github.com/Icinga/icinga2/issues/2657) (Cluster): Show slave lag for the cluster-zone check
* [#2635](https://github.com/Icinga/icinga2/issues/2635) (Configuration): introduce time dependent variable values
* [#2634](https://github.com/Icinga/icinga2/issues/2634) (Cluster): Add the ability to use a CA certificate as a way of verifying hosts for CSR autosigning
* [#2609](https://github.com/Icinga/icinga2/issues/2609): udp check command is missing arguments.
* [#2604](https://github.com/Icinga/icinga2/issues/2604) (CLI): Backup certificate files in 'node setup'
* [#2429](https://github.com/Icinga/icinga2/issues/2429) (Configuration): Figure out how variable scopes should work
* [#2426](https://github.com/Icinga/icinga2/issues/2426) (Configuration): Implement a way to call methods on objects
* [#2421](https://github.com/Icinga/icinga2/issues/2421) (Configuration): Implement a way to remove dictionary keys
* [#2418](https://github.com/Icinga/icinga2/issues/2418) (Plugins): Windows plugins should behave like their Linux cousins
* [#2408](https://github.com/Icinga/icinga2/issues/2408) (Configuration): ConfigCompiler::HandleInclude should return an inline dictionary
* [#2407](https://github.com/Icinga/icinga2/issues/2407) (Configuration): Implement a boolean sub-type for the Value class
* [#2405](https://github.com/Icinga/icinga2/issues/2405): Disallow calling strings as functions
* [#2396](https://github.com/Icinga/icinga2/issues/2396) (Configuration): Evaluate usage of function\(\)
* [#2391](https://github.com/Icinga/icinga2/issues/2391): Improve output of ToString for type objects
* [#2390](https://github.com/Icinga/icinga2/issues/2390): Register type objects as global variables
* [#2367](https://github.com/Icinga/icinga2/issues/2367) (Configuration): The lexer shouldn't accept escapes for characters which don't have to be escaped
* [#2365](https://github.com/Icinga/icinga2/issues/2365) (DB IDO): Implement socket\_path attribute for the IdoMysqlConnection class
* [#2355](https://github.com/Icinga/icinga2/issues/2355) (Configuration): Implement official support for user-defined functions and the "for" keyword
* [#2351](https://github.com/Icinga/icinga2/issues/2351) (Plugins): Windows agent is missing the standard plugin check\_ping
* [#2324](https://github.com/Icinga/icinga2/issues/2324) (Configuration): Implement the "if" and "else" keywords
* [#2323](https://github.com/Icinga/icinga2/issues/2323) (Configuration): Figure out whether Number + String should implicitly convert the Number argument to a string
* [#2322](https://github.com/Icinga/icinga2/issues/2322) (Configuration): Make the config parser thread-safe
* [#2318](https://github.com/Icinga/icinga2/issues/2318) (Configuration): Implement the % operator
* [#2312](https://github.com/Icinga/icinga2/issues/2312): Move the cast functions into libbase
* [#2310](https://github.com/Icinga/icinga2/issues/2310) (Configuration): Implement unit tests for the config parser
* [#2304](https://github.com/Icinga/icinga2/issues/2304): Implement an option to disable building the Demo component
* [#2303](https://github.com/Icinga/icinga2/issues/2303): Implement an option to disable building the Livestatus module
* [#2300](https://github.com/Icinga/icinga2/issues/2300) (Notifications): Implement the DISABLE\_HOST\_SVC\_NOTIFICATIONS and ENABLE\_HOST\_SVC\_NOTIFICATIONS commands
* [#2298](https://github.com/Icinga/icinga2/issues/2298) (Plugins): Missing check\_disk output on Windows
* [#2294](https://github.com/Icinga/icinga2/issues/2294) (Configuration): Implement an AST Expression for T\_CONST
* [#2290](https://github.com/Icinga/icinga2/issues/2290): Rename \_DEBUG to I2\_DEBUG
* [#2286](https://github.com/Icinga/icinga2/issues/2286) (Configuration): Redesign how stack frames work for scripts
* [#2265](https://github.com/Icinga/icinga2/issues/2265): ConfigCompiler::Compile\* should return an AST node
* [#2264](https://github.com/Icinga/icinga2/issues/2264) (Configuration): ConfigCompiler::HandleInclude\* should return an AST node
* [#2262](https://github.com/Icinga/icinga2/issues/2262) (CLI): Add an option that hides CLI commands
* [#2260](https://github.com/Icinga/icinga2/issues/2260) (Configuration): Evaluate apply/object rules when the parent objects are created
* [#2211](https://github.com/Icinga/icinga2/issues/2211) (Configuration): Variable from for loop not usable in assign statement
* [#2186](https://github.com/Icinga/icinga2/issues/2186) (Configuration): Access object runtime attributes in custom vars & command arguments
* [#2176](https://github.com/Icinga/icinga2/issues/2176) (Configuration): Please add labels in SNMP checks
* [#2697](https://github.com/Icinga/icinga2/issues/2697) (Configuration): Memory leak in Expression::GetReference
* [#2695](https://github.com/Icinga/icinga2/issues/2695) (Configuration): else if doesn't work without an else branch
* [#2693](https://github.com/Icinga/icinga2/issues/2693): Check whether the new TimePeriod validator is working as expected
* [#2692](https://github.com/Icinga/icinga2/issues/2692) (CLI): Resource leak in TroubleshootCommand::ObjectInfo
* [#2691](https://github.com/Icinga/icinga2/issues/2691) (CLI): Resource leak in TroubleshootCommand::Run
* [#2689](https://github.com/Icinga/icinga2/issues/2689): Check if scheduled downtimes work properly
* [#2688](https://github.com/Icinga/icinga2/issues/2688) (Plugins): check\_memory tool shows incorrect memory size on windows
* [#2685](https://github.com/Icinga/icinga2/issues/2685) (Cluster): Don't accept config updates for zones for which we have an authoritative copy of the config
* [#2684](https://github.com/Icinga/icinga2/issues/2684) (Cluster): Icinga crashed on SocketEvent
* [#2683](https://github.com/Icinga/icinga2/issues/2683) (Cluster): Crash in ApiClient::TimeoutTimerHandler
* [#2680](https://github.com/Icinga/icinga2/issues/2680): Deadlock in TlsStream::Handshake
* [#2679](https://github.com/Icinga/icinga2/issues/2679) (Cluster): Deadlock in ApiClient::Disconnect
* [#2677](https://github.com/Icinga/icinga2/issues/2677): Crash in SocketEvents::Register
* [#2676](https://github.com/Icinga/icinga2/issues/2676) (Livestatus): Windows build fails
* [#2674](https://github.com/Icinga/icinga2/issues/2674) (DB IDO): Hosts: process\_performance\_data = 0 in database even though enable\_perfdata = 1 in config
* [#2671](https://github.com/Icinga/icinga2/issues/2671) (DB IDO): Crash in DbObject::SendStatusUpdate
* [#2670](https://github.com/Icinga/icinga2/issues/2670) (Compat): Valgrind warning for ExternalCommandListener::CommandPipeThread
* [#2669](https://github.com/Icinga/icinga2/issues/2669): Crash in ApiEvents::RepositoryTimerHandler
* [#2665](https://github.com/Icinga/icinga2/issues/2665) (Livestatus): livestatus limit header not working
* [#2660](https://github.com/Icinga/icinga2/issues/2660) (Configuration): apply-for incorrectly converts loop var to string
* [#2593](https://github.com/Icinga/icinga2/issues/2593) (Compat): last\_hard\_state missing in StatusDataWriter
* [#2589](https://github.com/Icinga/icinga2/issues/2589) (Configuration): Stacktrace on Endpoint not belonging to a zone or multiple zones
* [#2586](https://github.com/Icinga/icinga2/issues/2586): Icinga2 master doesn't change check-status when "accept\_commands = true" is not set at client node
* [#2579](https://github.com/Icinga/icinga2/issues/2579) (Configuration): Apply rule '' for host does not match anywhere!
* [#2572](https://github.com/Icinga/icinga2/issues/2572) (Cluster): Incorrectly formatted timestamp in .timestamp file
* [#2570](https://github.com/Icinga/icinga2/issues/2570): Crash in ScheduledDowntime::CreateNextDowntime
* [#2569](https://github.com/Icinga/icinga2/issues/2569): PidPath, VarsPath, ObjectsPath and StatePath no longer read from init.conf
* [#2566](https://github.com/Icinga/icinga2/issues/2566) (Configuration): Don't allow comparison of strings and numbers
* [#2562](https://github.com/Icinga/icinga2/issues/2562) (Cluster): ApiListener::ReplayLog shouldn't hold mutex lock during call to Socket::Poll
* [#2560](https://github.com/Icinga/icinga2/issues/2560): notify flag is ignored in ACKNOWLEDGE\_\*\_PROBLEM commands
* [#2559](https://github.com/Icinga/icinga2/issues/2559) (DB IDO): Duplicate entry on icinga\_hoststatus
* [#2556](https://github.com/Icinga/icinga2/issues/2556) (CLI): Running icinga2 command as non privilged user raises error
* [#2551](https://github.com/Icinga/icinga2/issues/2551) (Livestatus): Livestatus operator =~ is not case-insensitive
* [#2542](https://github.com/Icinga/icinga2/issues/2542) (CLI): icinga2 node wizard: Create backups of certificates
* [#2539](https://github.com/Icinga/icinga2/issues/2539) (Cluster): Report missing command objects on remote agent
* [#2533](https://github.com/Icinga/icinga2/issues/2533) (Cluster): Problems using command\_endpoint inside HA zone
* [#2529](https://github.com/Icinga/icinga2/issues/2529) (CLI): CLI console fails to report errors in included files
* [#2526](https://github.com/Icinga/icinga2/issues/2526) (Configuration): Deadlock when accessing loop variable inside of the loop
* [#2525](https://github.com/Icinga/icinga2/issues/2525) (Configuration): Lexer term for T\_ANGLE\_STRING is too aggressive
* [#2513](https://github.com/Icinga/icinga2/issues/2513) (CLI): icinga2 node update should not write config for blacklisted zones/host
* [#2503](https://github.com/Icinga/icinga2/issues/2503) (CLI): Argument auto-completion doesn't work for short options
* [#2502](https://github.com/Icinga/icinga2/issues/2502): group assign fails with bad lexical cast when evaluating rules
* [#2497](https://github.com/Icinga/icinga2/issues/2497): Exception on missing config files
* [#2494](https://github.com/Icinga/icinga2/issues/2494) (Livestatus): Error messages when stopping Icinga
* [#2452](https://github.com/Icinga/icinga2/issues/2452) (Cluster): Agent checks fail when there's already a host with the same name
* [#2448](https://github.com/Icinga/icinga2/issues/2448) (Configuration): User::ValidateFilters isn't being used
* [#2447](https://github.com/Icinga/icinga2/issues/2447) (Configuration): ConfigCompilerContext::WriteObject crashes after ConfigCompilerContext::FinishObjectsFile was called
* [#2445](https://github.com/Icinga/icinga2/issues/2445) (Configuration): segfault on startup
* [#2442](https://github.com/Icinga/icinga2/issues/2442) (DB IDO): POSTGRES IDO: invalid syntax for integer: "true" while trying to update table icinga\_hoststatus
* [#2441](https://github.com/Icinga/icinga2/issues/2441) (CLI): console: Don't repeat line when we're reporting an error for the last line
* [#2435](https://github.com/Icinga/icinga2/issues/2435) (Configuration): Location info for strings is incorrect
* [#2434](https://github.com/Icinga/icinga2/issues/2434) (Configuration): Setting an attribute on an r-value fails
* [#2433](https://github.com/Icinga/icinga2/issues/2433) (Configuration): Confusing error message when trying to set a field on a string
* [#2431](https://github.com/Icinga/icinga2/issues/2431) (Configuration): icinga 2 Config Error needs to be more verbose
* [#2428](https://github.com/Icinga/icinga2/issues/2428) (Configuration): Debug visualizer for the Value class is broken
* [#2427](https://github.com/Icinga/icinga2/issues/2427) (Configuration): if doesn't work for non-boolean arguments
* [#2423](https://github.com/Icinga/icinga2/issues/2423) (Configuration): Require at least one user for notification objects \(user or as member of user\_groups\)
* [#2419](https://github.com/Icinga/icinga2/issues/2419) (Configuration): Confusing error message for import
* [#2410](https://github.com/Icinga/icinga2/issues/2410): The Boolean type change broke set\_if
* [#2446](https://github.com/Icinga/icinga2/issues/2446) (Compat): StatusDataWriter: Wrong export of event\_handler\_enabled
* [#2444](https://github.com/Icinga/icinga2/issues/2444) (CLI): Remove usage info from --version
* [#2416](https://github.com/Icinga/icinga2/issues/2416) (DB IDO): DB IDO: Missing last\_hard\_state column update in {host,service}status tables
* [#2411](https://github.com/Icinga/icinga2/issues/2411): exception during config check
* [#2394](https://github.com/Icinga/icinga2/issues/2394): typeof does not work for numbers
* [#2381](https://github.com/Icinga/icinga2/issues/2381): SIGABRT while evaluating apply rules
* [#2380](https://github.com/Icinga/icinga2/issues/2380) (Configuration): typeof\(\) seems to return null for arrays and dictionaries
* [#2376](https://github.com/Icinga/icinga2/issues/2376) (Configuration): Apache 2.2 fails with new apache conf
* [#2371](https://github.com/Icinga/icinga2/issues/2371) (Configuration): Test Classic UI config file with Apache 2.4
* [#2370](https://github.com/Icinga/icinga2/issues/2370) (Cluster): update\_config not updating configuration
* [#2360](https://github.com/Icinga/icinga2/issues/2360): CLI `icinga2 node update-config` doesn't sync configs from remote clients as expected
* [#2354](https://github.com/Icinga/icinga2/issues/2354) (DB IDO): Improve error reporting when libmysqlclient or libpq are missing
* [#2350](https://github.com/Icinga/icinga2/issues/2350) (Cluster): Segfault on issuing node update-config
* [#2341](https://github.com/Icinga/icinga2/issues/2341) (Cluster): execute checks locally if command\_endpoint == local endpoint
* [#2283](https://github.com/Icinga/icinga2/issues/2283) (Cluster): Cluster heartbeats need to be more aggressive
* [#2266](https://github.com/Icinga/icinga2/issues/2266) (CLI): "node wizard" shouldn't crash when SaveCert fails
* [#2255](https://github.com/Icinga/icinga2/issues/2255) (DB IDO): If a parent host goes down, the child host isn't marked as unrechable in the db ido
* [#2216](https://github.com/Icinga/icinga2/issues/2216) (Cluster): Repository does not support services which have a slash in their name
* [#2202](https://github.com/Icinga/icinga2/issues/2202) (Configuration): CPU usage at 100% when check\_interval = 0 in host object definition
* [#2154](https://github.com/Icinga/icinga2/issues/2154) (Cluster): update-config fails to create hosts
* [#2148](https://github.com/Icinga/icinga2/issues/2148) (Compat): Feature `compatlog' should flush output buffer on every new line
* [#2021](https://github.com/Icinga/icinga2/issues/2021): double macros in command arguments seems to lead to exception
* [#2016](https://github.com/Icinga/icinga2/issues/2016) (Notifications): Docs: Better explaination of dependency state filters
* [#1947](https://github.com/Icinga/icinga2/issues/1947) (Livestatus): Missing host downtimes/comments in Livestatus
### ITL
* [#2430](https://github.com/Icinga/icinga2/issues/2430) (ITL): No option to specify timeout to check\_snmp and snmp manubulon commands
### Documentation
* [#2422](https://github.com/Icinga/icinga2/issues/2422) (Documentation): Setting a dictionary key to null does not cause the key/value to be removed
* [#2412](https://github.com/Icinga/icinga2/issues/2412) (Documentation): Update host examples in Dependencies for Network Reachability documentation
* [#2409](https://github.com/Icinga/icinga2/issues/2409) (Documentation): Wrong command in documentation for installing Icinga 2 pretty printers.
* [#2404](https://github.com/Icinga/icinga2/issues/2404) (Documentation): Livestatus: Replace unixcat with nc -U
* [#2180](https://github.com/Icinga/icinga2/issues/2180) (Documentation): Documentation: Add note on default notification interval in getting started notifications.conf
### Support
* [#2417](https://github.com/Icinga/icinga2/issues/2417) (Tests): Unit tests fail on FreeBSD
* [#2369](https://github.com/Icinga/icinga2/issues/2369) (Packages): SUSE packages %set\_permissions post statement wasn't moved to common
* [#2368](https://github.com/Icinga/icinga2/issues/2368) (Packages): /usr/lib/icinga2 is not owned by a package
* [#2292](https://github.com/Icinga/icinga2/issues/2292) (Tests): The unit tests still crash sometimes
* [#2340](https://github.com/Icinga/icinga2/issues/2340) (CLI): Segfault in CA handling
* [#2328](https://github.com/Icinga/icinga2/issues/2328) (Cluster): Verify if master radio box is disabled in the Windows wizard
* [#2311](https://github.com/Icinga/icinga2/issues/2311) (Configuration): !in operator returns incorrect result
* [#2293](https://github.com/Icinga/icinga2/issues/2293) (Configuration): Objects created with node update-config can't be seen in Classic UI
* [#2288](https://github.com/Icinga/icinga2/issues/2288) (Cluster): Incorrect error message for localhost
* [#2282](https://github.com/Icinga/icinga2/issues/2282) (Cluster): Icinga2 node add failed with unhandled exception
* [#2273](https://github.com/Icinga/icinga2/issues/2273): Restart Icinga - Error Restoring program state from file '/var/lib/icinga2/icinga2.state'
* [#2272](https://github.com/Icinga/icinga2/issues/2272) (Cluster): Windows wizard is missing --zone argument
* [#2271](https://github.com/Icinga/icinga2/issues/2271) (Cluster): Windows wizard uses incorrect CLI command
* [#2267](https://github.com/Icinga/icinga2/issues/2267) (Cluster): Built-in commands shouldn't be run on the master instance in remote command execution mode
* [#2207](https://github.com/Icinga/icinga2/issues/2207) (Livestatus): livestatus large amount of submitting unix socket command results in broken pipes
### ITL
* [#2285](https://github.com/Icinga/icinga2/issues/2285) (ITL): Increase default timeout for NRPE checks
### Documentation
* [#2344](https://github.com/Icinga/icinga2/issues/2344) (Documentation): Documentation: Explain how unresolved macros are handled
* [#2343](https://github.com/Icinga/icinga2/issues/2343) (Documentation): Document how arrays in macros work
* [#2336](https://github.com/Icinga/icinga2/issues/2336) (Documentation): Wrong information in section "Linux Client Setup Wizard for Remote Monitoring"
* [#2275](https://github.com/Icinga/icinga2/issues/2275) (Documentation): 2.2.0 has out-of-date icinga2 man page
* [#2251](https://github.com/Icinga/icinga2/issues/2251) (Documentation): object and template with the same name generate duplicate object error
### Support
* [#2363](https://github.com/Icinga/icinga2/issues/2363) (Packages): Fix Apache config in the Debian package
* [#2359](https://github.com/Icinga/icinga2/issues/2359) (Packages): Wrong permission in run directory after restart
* [#2301](https://github.com/Icinga/icinga2/issues/2301) (Packages): Move the icinga2-prepare-dirs script elsewhere
* [#2280](https://github.com/Icinga/icinga2/issues/2280) (Packages): Icinga 2.2 misses the build requirement libyajl-devel for SUSE distributions
* [#2278](https://github.com/Icinga/icinga2/issues/2278) (Packages): /usr/sbin/icinga-prepare-dirs conflicts in the bin and common package
* [#2276](https://github.com/Icinga/icinga2/issues/2276) (Packages): Systemd rpm scripts are run in wrong package
* [#2212](https://github.com/Icinga/icinga2/issues/2212) (Packages): icinga2 checkconfig should fail if group given for command files does not exist
* [#2117](https://github.com/Icinga/icinga2/issues/2117) (Packages): Update spec file to use yajl-devel
* [#1968](https://github.com/Icinga/icinga2/issues/1968) (Packages): service icinga2 status gives wrong information when run as unprivileged user
* [#2189](https://github.com/Icinga/icinga2/issues/2189) (Configuration): Refactor AST into multiple classes
* [#2187](https://github.com/Icinga/icinga2/issues/2187) (Configuration): Implement support for arbitrarily complex indexers
* [#2184](https://github.com/Icinga/icinga2/issues/2184) (Configuration): Generate objects using apply with foreach in arrays or dictionaries \(key =\> value\)
* [#2183](https://github.com/Icinga/icinga2/issues/2183) (Configuration): Support dictionaries in custom attributes
* [#2182](https://github.com/Icinga/icinga2/issues/2182) (Cluster): Execute remote commands on the agent w/o local objects by passing custom attributes
* [#2206](https://github.com/Icinga/icinga2/issues/2206): Plugin execution on Windows does not work
* [#2205](https://github.com/Icinga/icinga2/issues/2205): Compilation Error with boost 1.56 under Windows
* [#2201](https://github.com/Icinga/icinga2/issues/2201): Exception when executing check
* [#2200](https://github.com/Icinga/icinga2/issues/2200) (Configuration): Nested templates do not work \(anymore\)
* [#2199](https://github.com/Icinga/icinga2/issues/2199) (CLI): Typo in output of 'icinga2 object list'
* [#2197](https://github.com/Icinga/icinga2/issues/2197) (Notifications): only notify users on recovery which have been notified before \(not-ok state\)
* [#2128](https://github.com/Icinga/icinga2/issues/2128) (CLI): Cli: Node Setup/Wizard running as root must chown\(\) generated files to icinga daemon user
* [#2127](https://github.com/Icinga/icinga2/issues/2127) (Configuration): can't assign Service to Host in nested HostGroup
* [#2125](https://github.com/Icinga/icinga2/issues/2125) (Performance Data): Performance data via API is broken
* [#2116](https://github.com/Icinga/icinga2/issues/2116) (CLI): Cli command: Repository should validate if object exists before add/remove
* [#2106](https://github.com/Icinga/icinga2/issues/2106) (Cluster): When replaying logs the secobj attribute is ignored
* [#2083](https://github.com/Icinga/icinga2/issues/2083): CMake warnings on OS X
* [#2077](https://github.com/Icinga/icinga2/issues/2077) (CLI): CLI: Auto-completion with colliding arguments
* [#2070](https://github.com/Icinga/icinga2/issues/2070) (DB IDO): CLI / MySQL error during vagrant provisioning
* [#2068](https://github.com/Icinga/icinga2/issues/2068) (CLI): pki new-cert doesn't check whether the files were successfully written
* [#2065](https://github.com/Icinga/icinga2/issues/2065) (DB IDO): Schema upgrade files are missing in /usr/share/icinga2-ido-{mysql,pgsql}
* [#2063](https://github.com/Icinga/icinga2/issues/2063) (CLI): Cli commands: Integers in arrays are printed incorrectly
* [#2057](https://github.com/Icinga/icinga2/issues/2057) (CLI): failed en/disable feature should return error
* [#2056](https://github.com/Icinga/icinga2/issues/2056) (CLI): Commands are auto-completed when they shouldn't be
* [#2051](https://github.com/Icinga/icinga2/issues/2051) (Configuration): custom attribute name 'type' causes empty vars dictionary
* [#2048](https://github.com/Icinga/icinga2/issues/2048) (Compat): Fix reading perfdata in compat/checkresultreader
* [#2042](https://github.com/Icinga/icinga2/issues/2042) (Plugins): Setting snmp\_v2 can cause snmp-manubulon-command derived checks to fail
* [#2038](https://github.com/Icinga/icinga2/issues/2038) (Configuration): snmp-load checkcommand has a wrong "-T" param value
* [#2034](https://github.com/Icinga/icinga2/issues/2034) (Configuration): Importing a CheckCommand in a NotificationCommand results in an exception without stacktrace.
* [#2029](https://github.com/Icinga/icinga2/issues/2029) (Configuration): Error messages for invalid imports missing
* [#2026](https://github.com/Icinga/icinga2/issues/2026) (Configuration): config parser crashes on unknown attribute in assign
* [#2006](https://github.com/Icinga/icinga2/issues/2006) (Configuration): snmp-load checkcommand has wrong threshold syntax
* [#2005](https://github.com/Icinga/icinga2/issues/2005) (Performance Data): icinga2 returns exponentail perfdata format with check\_nt
* [#2004](https://github.com/Icinga/icinga2/issues/2004) (Performance Data): Icinga2 changes perfdata order and removes maximum
* [#2001](https://github.com/Icinga/icinga2/issues/2001) (Notifications): default value for "disable\_notifications" in service dependencies is set to "false"
* [#1950](https://github.com/Icinga/icinga2/issues/1950) (Configuration): Typo for "HTTP Checks" match in groups.conf
* [#1720](https://github.com/Icinga/icinga2/issues/1720) (Notifications): delaying notifications with times.begin should postpone first notification into that window
### ITL
* [#2204](https://github.com/Icinga/icinga2/issues/2204) (ITL): Plugin Check Commands: disk is missing '-p', 'x' parameter
* [#2017](https://github.com/Icinga/icinga2/issues/2017) (ITL): ITL: check\_procs and check\_http are missing arguments
### Documentation
* [#2218](https://github.com/Icinga/icinga2/issues/2218) (Documentation): Documentation: Update Icinga Web 2 installation
* [#2191](https://github.com/Icinga/icinga2/issues/2191) (Documentation): link missing in documentation about livestatus
* [#2175](https://github.com/Icinga/icinga2/issues/2175) (Documentation): Documentation for arrays & dictionaries in custom attributes and their usage in apply rules for
* [#2160](https://github.com/Icinga/icinga2/issues/2160) (Documentation): Documentation: Explain how to manage agent config in central repository
* [#2150](https://github.com/Icinga/icinga2/issues/2150) (Documentation): Documentation: Move troubleshooting after the getting started chapter
* [#2143](https://github.com/Icinga/icinga2/issues/2143) (Documentation): Documentation: Revamp getting started with 1 host and multiple \(service\) applies
* [#2037](https://github.com/Icinga/icinga2/issues/2037) (Documentation): Documentation: Wrong check command for snmp-int\(erface\)
* [#2033](https://github.com/Icinga/icinga2/issues/2033) (Documentation): Docs: Default command timeout is 60s not 5m
* [#2028](https://github.com/Icinga/icinga2/issues/2028) (Documentation): Icinga2 docs: link supported operators from sections about apply rules
* [#2024](https://github.com/Icinga/icinga2/issues/2024) (Documentation): Documentation: Add support for locally-scoped variables for host/service in applied Dependency
* [#2013](https://github.com/Icinga/icinga2/issues/2013) (Documentation): Documentation: Add host/services variables in apply rules
* [#1972](https://github.com/Icinga/icinga2/issues/1972) (Documentation): Document how to use multiple assign/ignore statements with logical "and" & "or"
### Support
* [#2253](https://github.com/Icinga/icinga2/issues/2253) (Packages): Conditionally enable MySQL and PostgresSQL, add support for FreeBSD and DragonFlyBSD
* [#2236](https://github.com/Icinga/icinga2/issues/2236) (Packages): Enable parallel builds for the Debian package
* [#2147](https://github.com/Icinga/icinga2/issues/2147) (Packages): Feature `checker' is not enabled when installing Icinga 2 using our lates RPM snapshot packages
* [#2136](https://github.com/Icinga/icinga2/issues/2136) (Packages): Build fails on RHEL 6.6
* [#2123](https://github.com/Icinga/icinga2/issues/2123) (Packages): Post-update script \(migrate-hosts\) isn't run on RPM-based distributions
* [#2095](https://github.com/Icinga/icinga2/issues/2095) (Packages): Unity build fails on RHEL 5
* [#2058](https://github.com/Icinga/icinga2/issues/2058) (Packages): Debian package root permissions interfere with icinga2 cli commands as icinga user
* [#1957](https://github.com/Icinga/icinga2/issues/1957): Build fails on Haiku
* [#1955](https://github.com/Icinga/icinga2/issues/1955) (Cluster): new SSL Errors with too many queued messages
* [#1954](https://github.com/Icinga/icinga2/issues/1954): Missing differentiation between service and systemctl
* [#1952](https://github.com/Icinga/icinga2/issues/1952) (Performance Data): GraphiteWriter should ignore empty perfdata value
* [#1948](https://github.com/Icinga/icinga2/issues/1948): pipe2 returns ENOSYS on GNU Hurd and Debian kfreebsd
* [#1946](https://github.com/Icinga/icinga2/issues/1946): Exit code is not initialized for some failed checks
* [#1940](https://github.com/Icinga/icinga2/issues/1940): icinga2-list-objects complains about Umlauts and stops output
* [#1935](https://github.com/Icinga/icinga2/issues/1935): icinga2-list-objects doesn't work with Python 3
* [#1934](https://github.com/Icinga/icinga2/issues/1934) (Configuration): Remove validator for the Script type
* [#1930](https://github.com/Icinga/icinga2/issues/1930): "Error parsing performance data" in spite of "enable\_perfdata = false"
* [#1910](https://github.com/Icinga/icinga2/issues/1910) (Cluster): SSL errors with interleaved SSL\_read/write
* [#1862](https://github.com/Icinga/icinga2/issues/1862) (Cluster): SSL\_read errors during restart
* [#1849](https://github.com/Icinga/icinga2/issues/1849) (Cluster): Too many queued messages
* [#1782](https://github.com/Icinga/icinga2/issues/1782): make test fails on openbsd
* [#1522](https://github.com/Icinga/icinga2/issues/1522): Link libcJSON against libm
### Documentation
* [#1985](https://github.com/Icinga/icinga2/issues/1985) (Documentation): clarify on db ido upgrades
* [#1962](https://github.com/Icinga/icinga2/issues/1962) (Documentation): Extend documentation for icinga-web on Debian systems
* [#1949](https://github.com/Icinga/icinga2/issues/1949) (Documentation): Explain event commands and their integration by a real life example \(httpd restart via ssh\)
* [#1927](https://github.com/Icinga/icinga2/issues/1927) (Documentation): Document how to use @ to escape keywords
* [#1944](https://github.com/Icinga/icinga2/issues/1944) (Packages): service icinga2 status - prints cat error if the service is stopped
* [#1941](https://github.com/Icinga/icinga2/issues/1941) (Packages): icinga2 init-script terminates with exit code 0 if $DAEMON is not in place or not executable
* [#1939](https://github.com/Icinga/icinga2/issues/1939) (Packages): Enable unity build for RPM/Debian packages
* [#1937](https://github.com/Icinga/icinga2/issues/1937) (Packages): Figure out a better way to set the version for snapshot builds
* [#1916](https://github.com/Icinga/icinga2/issues/1916): Build fails with Boost 1.56
* [#1903](https://github.com/Icinga/icinga2/issues/1903) (Cluster): Host and service checks stuck in "pending" when hostname = localhost a parent/satellite setup
* [#1902](https://github.com/Icinga/icinga2/issues/1902): Commands are processed multiple times
* [#1896](https://github.com/Icinga/icinga2/issues/1896): check file permissions in /var/cache/icinga2
* [#1884](https://github.com/Icinga/icinga2/issues/1884): External command pipe: Too many open files
* [#1819](https://github.com/Icinga/icinga2/issues/1819): ExternalCommandListener fails open pipe: Too many open files
### Documentation
* [#1924](https://github.com/Icinga/icinga2/issues/1924) (Documentation): add example selinux policy for external command pipe
* [#1915](https://github.com/Icinga/icinga2/issues/1915) (Documentation): how to add a new cluster node
* [#1913](https://github.com/Icinga/icinga2/issues/1913) (Documentation): Keyword "required" used inconsistently for host and service "icon\_image\*" attributes
* [#1757](https://github.com/Icinga/icinga2/issues/1757) (DB IDO): NULL vs empty string
* [#1752](https://github.com/Icinga/icinga2/issues/1752) (Cluster): Infinite loop in TlsStream::Close
* [#1744](https://github.com/Icinga/icinga2/issues/1744) (DB IDO): Two Custom Variables with same name, but Upper/Lowercase creating IDO duplicate entry
* [#1741](https://github.com/Icinga/icinga2/issues/1741): Command pipe blocks when trying to open it more than once in parallel
* [#1730](https://github.com/Icinga/icinga2/issues/1730): Check and retry intervals are incorrect
* [#1729](https://github.com/Icinga/icinga2/issues/1729): $TOTALHOSTSERVICESWARNING$ and $TOTALHOSTSERVICESCRITICAL$ aren't getting converted
* [#1728](https://github.com/Icinga/icinga2/issues/1728): Service dependencies aren't getting converted properly
* [#1726](https://github.com/Icinga/icinga2/issues/1726): group names quoted twice in arrays
* [#1723](https://github.com/Icinga/icinga2/issues/1723): add log message for invalid performance data
* [#1753](https://github.com/Icinga/icinga2/issues/1753) (Configuration): icinga2-sign-key creates ".crt" and ".key" files when the CA passphrase is invalid
* [#1751](https://github.com/Icinga/icinga2/issues/1751) (Configuration): icinga2-build-ca shouldn't prompt for DN
* [#1749](https://github.com/Icinga/icinga2/issues/1749): TLS connections are still unstable
* [#1745](https://github.com/Icinga/icinga2/issues/1745): Icinga stops updating IDO after a while
* [#1724](https://github.com/Icinga/icinga2/issues/1724): Improve systemd service definition
* [#1716](https://github.com/Icinga/icinga2/issues/1716) (Cluster): Icinga doesn't send SetLogPosition messages when one of the endpoints fails to connect
* [#1712](https://github.com/Icinga/icinga2/issues/1712): parsing of double defined command can generate unexpected errors
* [#1704](https://github.com/Icinga/icinga2/issues/1704): Reminder notifications are sent on disabled services
* [#1698](https://github.com/Icinga/icinga2/issues/1698): icinga2 cannot be built with both systemd and init.d files
* [#1697](https://github.com/Icinga/icinga2/issues/1697) (Livestatus): Thruk Panorama View cannot query Host Status
* [#1695](https://github.com/Icinga/icinga2/issues/1695): icinga2.state could not be opened
* [#1764](https://github.com/Icinga/icinga2/issues/1764) (Installation): ICINGA2\_SYSCONFIGFILE should use full path using CMAKE\_INSTALL\_FULL\_SYSCONFDIR
* [#1709](https://github.com/Icinga/icinga2/issues/1709) (Packages): htpasswd should be installed with icinga2-classicui on Ubuntu
