gitea/options/license
GiteaBot eab011db58 [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
..
0BSD
389-exception
AAL
ADSL
AFL-1.1
AFL-1.2
AFL-2.0
AFL-2.1
AFL-3.0
AGPL-1.0-only
AGPL-1.0-or-later
AGPL-3.0-only
AGPL-3.0-or-later
AMDPLPA
AML
AMPAS
ANTLR-PD
ANTLR-PD-fallback
APAFML
APL-1.0
APSL-1.0
APSL-1.1
APSL-1.2
APSL-2.0
ASWF-Digital-Assets-1.0 [skip ci] Updated licenses and gitignores 2023-05-08 00:23:39 +00:00
ASWF-Digital-Assets-1.1 [skip ci] Updated licenses and gitignores 2023-06-12 00:29:16 +00:00
Abstyles
AdaCore-doc [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Adobe-2006
Adobe-Glyph
Afmparse
Aladdin
Apache-1.0
Apache-1.1
Apache-2.0
App-s2p [skip ci] Updated licenses and gitignores 2022-01-02 00:28:42 +00:00
Arphic-1999 [skip ci] Updated licenses and gitignores 2022-02-27 00:16:04 +00:00
Artistic-1.0
Artistic-1.0-Perl
Artistic-1.0-cl8
Artistic-2.0
Asterisk-exception [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
Autoconf-exception-2.0
Autoconf-exception-3.0
Autoconf-exception-generic [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Autoconf-exception-macro [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
BSD-1-Clause [skip ci] Updated licenses and gitignores 2021-11-14 00:26:06 +00:00
BSD-2-Clause [skip ci] Updated licenses and gitignores 2021-11-21 00:25:17 +00:00
BSD-2-Clause-Patent
BSD-2-Clause-Views
BSD-3-Clause [skip ci] Updated licenses and gitignores 2021-11-21 00:25:17 +00:00
BSD-3-Clause-Attribution
BSD-3-Clause-Clear
BSD-3-Clause-LBNL
BSD-3-Clause-Modification
BSD-3-Clause-No-Military-License
BSD-3-Clause-No-Nuclear-License
BSD-3-Clause-No-Nuclear-License-2014
BSD-3-Clause-No-Nuclear-Warranty
BSD-3-Clause-Open-MPI
BSD-4-Clause
BSD-4-Clause-Shortened
BSD-4-Clause-UC
BSD-4.3RENO [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
BSD-4.3TAHOE [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
BSD-Advertising-Acknowledgement [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
BSD-Attribution-HPND-disclaimer [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
BSD-Protection
BSD-Source-Code
BSL-1.0
BUSL-1.1
Baekmuk [skip ci] Updated licenses and gitignores 2022-03-13 00:11:52 +00:00
Bahyph
Barr
Beerware
Bison-exception-2.2
BitTorrent-1.0
BitTorrent-1.1
Bitstream-Charter [skip ci] Updated licenses and gitignores 2022-12-25 00:19:36 +00:00
Bitstream-Vera [skip ci] Updated licenses and gitignores 2022-05-22 00:10:22 +00:00
BlueOak-1.0.0
Boehm-GC [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
Bootloader-exception
Borceux
Brian-Gladman-3-Clause [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
C-UDA-1.0
CAL-1.0
CAL-1.0-Combined-Work-Exception
CATOSL-1.1
CC-BY-1.0
CC-BY-2.0
CC-BY-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
CC-BY-2.5-AU
CC-BY-3.0
CC-BY-3.0-AT
CC-BY-3.0-DE
CC-BY-3.0-IGO [skip ci] Updated licenses and gitignores 2022-08-07 00:20:52 +00:00
CC-BY-3.0-NL
CC-BY-3.0-US
CC-BY-4.0
CC-BY-NC-1.0
CC-BY-NC-2.0
CC-BY-NC-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
CC-BY-NC-3.0
CC-BY-NC-3.0-DE
CC-BY-NC-4.0
CC-BY-NC-ND-1.0
CC-BY-NC-ND-2.0
CC-BY-NC-ND-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
CC-BY-NC-ND-3.0
CC-BY-NC-ND-3.0-DE
CC-BY-NC-ND-3.0-IGO
CC-BY-NC-ND-4.0
CC-BY-NC-SA-1.0
CC-BY-NC-SA-2.0
CC-BY-NC-SA-2.0-DE [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
CC-BY-NC-SA-2.0-FR
CC-BY-NC-SA-2.0-UK
CC-BY-NC-SA-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
CC-BY-NC-SA-3.0
CC-BY-NC-SA-3.0-DE
CC-BY-NC-SA-3.0-IGO
CC-BY-NC-SA-4.0
CC-BY-ND-1.0
CC-BY-ND-2.0
CC-BY-ND-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
CC-BY-ND-3.0
CC-BY-ND-3.0-DE
CC-BY-ND-4.0
CC-BY-SA-1.0
CC-BY-SA-2.0
CC-BY-SA-2.0-UK
CC-BY-SA-2.1-JP
CC-BY-SA-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
CC-BY-SA-3.0
CC-BY-SA-3.0-AT
CC-BY-SA-3.0-DE
CC-BY-SA-3.0-IGO [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
CC-BY-SA-4.0
CC-PDDC
CC0-1.0
CDDL-1.0
CDDL-1.1
CDL-1.0
CDLA-Permissive-1.0
CDLA-Permissive-2.0
CDLA-Sharing-1.0
CECILL-1.0
CECILL-1.1
CECILL-2.0
CECILL-2.1
CECILL-B
CECILL-C
CERN-OHL-1.1
CERN-OHL-1.2
CERN-OHL-P-2.0
CERN-OHL-S-2.0
CERN-OHL-W-2.0
CFITSIO [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
CLISP-exception-2.0
CMU-Mach [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
CNRI-Jython
CNRI-Python
CNRI-Python-GPL-Compatible
COIL-1.0 [skip ci] Updated licenses and gitignores 2021-11-14 00:26:06 +00:00
CPAL-1.0
CPL-1.0
CPOL-1.02
CUA-OPL-1.0
Caldera
ClArtistic
Classpath-exception-2.0
Clips [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Community-Spec-1.0 [skip ci] Updated licenses and gitignores 2021-11-14 00:26:06 +00:00
Condor-1.1
Cornell-Lossless-JPEG [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Crossword
CrystalStacker
Cube
D-FSL-1.0
DL-DE-BY-2.0 [skip ci] Updated licenses and gitignores 2022-01-02 00:28:42 +00:00
DOC
DRL-1.0
DSDP
DigiRule-FOSS-exception
Dotseqn
ECL-1.0
ECL-2.0
EFL-1.0
EFL-2.0
EPICS
EPL-1.0
EPL-2.0
EUDatagrid
EUPL-1.0
EUPL-1.1
EUPL-1.2
Elastic-2.0 [skip ci] Updated licenses and gitignores 2022-01-30 00:28:19 +00:00
Entessa
ErlPL-1.1
Eurosym
FDK-AAC [skip ci] Updated licenses and gitignores 2021-11-14 00:26:06 +00:00
FLTK-exception
FSFAP
FSFUL
FSFULLR
FSFULLRWD [skip ci] Updated licenses and gitignores 2022-10-30 00:19:37 +00:00
FTL
Fair [skip ci] Updated licenses and gitignores 2022-09-04 00:20:43 +00:00
Fawkes-Runtime-exception
Font-exception-2.0
Frameworx-1.0
FreeBSD-DOC
FreeImage
GCC-exception-2.0
GCC-exception-3.1
GD
GFDL-1.1-invariants-only
GFDL-1.1-invariants-or-later
GFDL-1.1-no-invariants-only
GFDL-1.1-no-invariants-or-later
GFDL-1.1-only
GFDL-1.1-or-later
GFDL-1.2-invariants-only
GFDL-1.2-invariants-or-later
GFDL-1.2-no-invariants-only
GFDL-1.2-no-invariants-or-later
GFDL-1.2-only
GFDL-1.2-or-later
GFDL-1.3-invariants-only
GFDL-1.3-invariants-or-later
GFDL-1.3-no-invariants-only
GFDL-1.3-no-invariants-or-later
GFDL-1.3-only
GFDL-1.3-or-later
GL2PS
GLWTPL
GNAT-exception [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
GPL-1.0-only
GPL-1.0-or-later
GPL-2.0-only
GPL-2.0-or-later
GPL-3.0-interface-exception [skip ci] Updated licenses and gitignores 2023-06-05 00:27:49 +00:00
GPL-3.0-linking-exception
GPL-3.0-linking-source-exception
GPL-3.0-only [skip ci] Updated licenses and gitignores 2023-06-12 00:29:16 +00:00
GPL-3.0-or-later [skip ci] Updated licenses and gitignores 2023-06-12 00:29:16 +00:00
GPL-CC-1.0
GStreamer-exception-2005 [skip ci] Updated licenses and gitignores 2022-07-17 00:20:41 +00:00
GStreamer-exception-2008 [skip ci] Updated licenses and gitignores 2022-07-17 00:20:41 +00:00
Giftware
Glide
Glulxe
Graphics-Gems [skip ci] Updated licenses and gitignores 2022-12-25 00:19:36 +00:00
HP-1986 [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
HPND
HPND-Markus-Kuhn [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
HPND-export-US [skip ci] Updated licenses and gitignores 2023-01-01 00:19:35 +00:00
HPND-sell-variant
HPND-sell-variant-MIT-disclaimer [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
HTMLTIDY
HaskellReport
Hippocratic-2.1
IBM-pibs
ICU
IEC-Code-Components-EULA [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
IJG
IJG-short [skip ci] Updated licenses and gitignores 2022-12-25 00:19:36 +00:00
IPA
IPL-1.0
ISC
ImageMagick
Imlib2
Info-ZIP
Inner-Net-2.0 [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
Intel
Intel-ACPI
Interbase-1.0
JPL-image [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
JPNIC
JSON
Jam [skip ci] Updated licenses and gitignores 2022-02-06 00:16:02 +00:00
JasPer-2.0
Kazlib [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
KiCad-libraries-exception [skip ci] Updated licenses and gitignores 2022-03-27 00:17:35 +00:00
Knuth-CTAN [skip ci] Updated licenses and gitignores 2022-11-27 00:19:33 +00:00
LAL-1.2
LAL-1.3
LGPL-2.0-only
LGPL-2.0-or-later
LGPL-2.1-only
LGPL-2.1-or-later
LGPL-3.0-linking-exception
LGPL-3.0-only [skip ci] Updated licenses and gitignores 2022-05-01 00:25:27 +00:00
LGPL-3.0-or-later [skip ci] Updated licenses and gitignores 2022-05-01 00:25:27 +00:00
LGPLLR
LLGPL [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
LLVM-exception
LOOP [skip ci] Updated licenses and gitignores 2022-12-18 00:19:33 +00:00
LPL-1.0
LPL-1.02
LPPL-1.0
LPPL-1.1
LPPL-1.2
LPPL-1.3a
LPPL-1.3c
LZMA-SDK-9.11-to-9.20 [skip ci] Updated licenses and gitignores 2022-08-07 00:20:52 +00:00
LZMA-SDK-9.22 [skip ci] Updated licenses and gitignores 2022-08-07 00:20:52 +00:00
LZMA-exception
Latex2e
Latex2e-translated-notice [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
Leptonica
LiLiQ-P-1.1
LiLiQ-R-1.1
LiLiQ-Rplus-1.1
Libpng
Libtool-exception
Linux-OpenIB
Linux-man-pages-1-para [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
Linux-man-pages-copyleft [skip ci] Updated licenses and gitignores 2021-11-14 00:26:06 +00:00
Linux-man-pages-copyleft-2-para [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
Linux-man-pages-copyleft-var [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
Linux-syscall-note
MIT
MIT-0
MIT-CMU [skip ci] Updated licenses and gitignores 2022-08-28 00:20:43 +00:00
MIT-Festival [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
MIT-Modern-Variant
MIT-Wu [skip ci] Updated licenses and gitignores 2022-12-25 00:19:36 +00:00
MIT-advertising
MIT-enna
MIT-feh
MIT-open-group
MITNFA
MPL-1.0
MPL-1.1
MPL-2.0 [skip ci] Updated licenses and gitignores 2022-02-20 00:16:03 +00:00
MPL-2.0-no-copyleft-exception [skip ci] Updated licenses and gitignores 2022-02-20 00:16:03 +00:00
MS-LPL [skip ci] Updated licenses and gitignores 2022-07-31 00:20:42 +00:00
MS-PL
MS-RL
MTLL
MakeIndex
Martin-Birgmeier [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Minpack [skip ci] Updated licenses and gitignores 2022-07-17 00:20:41 +00:00
MirOS
Motosoto
MulanPSL-1.0
MulanPSL-2.0
Multics
Mup
NAIST-2003
NASA-1.3
NBPL-1.0
NCGL-UK-2.0
NCSA
NGPL
NICTA-1.0 [skip ci] Updated licenses and gitignores 2022-08-07 00:20:52 +00:00
NIST-PD
NIST-PD-fallback
NIST-Software [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
NLOD-1.0
NLOD-2.0
NLPL
NOSL
NPL-1.0
NPL-1.1
NPOSL-3.0
NRL
NTP
NTP-0
Naumen
Net-SNMP
NetCDF
Newsletr
Nokia
Nokia-Qt-exception-1.1
Noweb [skip ci] Updated licenses and gitignores 2022-01-30 00:28:19 +00:00
O-UDA-1.0
OCCT-PL
OCCT-exception-1.0
OCLC-2.0
OCaml-LGPL-linking-exception
ODC-By-1.0
ODbL-1.0
OFFIS [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
OFL-1.0
OFL-1.0-RFN
OFL-1.0-no-RFN
OFL-1.1
OFL-1.1-RFN
OFL-1.1-no-RFN
OGC-1.0
OGDL-Taiwan-1.0
OGL-Canada-2.0
OGL-UK-1.0
OGL-UK-2.0
OGL-UK-3.0
OGTSL
OLDAP-1.1
OLDAP-1.2
OLDAP-1.3
OLDAP-1.4
OLDAP-2.0
OLDAP-2.0.1
OLDAP-2.1
OLDAP-2.2
OLDAP-2.2.1
OLDAP-2.2.2
OLDAP-2.3
OLDAP-2.4
OLDAP-2.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
OLDAP-2.6 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
OLDAP-2.7
OLDAP-2.8 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
OLFL-1.3 [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
OML
OPL-1.0
OPL-UK-3.0 [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
OPUBL-1.0
OSET-PL-2.1
OSL-1.0
OSL-1.1
OSL-2.0
OSL-2.1
OSL-3.0
OpenJDK-assembly-exception-1.0
OpenPBS-2.3 [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
OpenSSL
PDDL-1.0 [skip ci] Updated licenses and gitignores 2022-03-27 00:17:35 +00:00
PHP-3.0
PHP-3.01
PS-or-PDF-font-exception-20170817
PSF-2.0
Parity-6.0.0
Parity-7.0.0
Plexus
PolyForm-Noncommercial-1.0.0
PolyForm-Small-Business-1.0.0
PostgreSQL
Python-2.0
Python-2.0.1 [skip ci] Updated licenses and gitignores 2022-09-04 00:20:43 +00:00
QPL-1.0
QPL-1.0-INRIA-2004 [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
QPL-1.0-INRIA-2004-exception [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Qhull
Qt-GPL-exception-1.0
Qt-LGPL-exception-1.1
Qwt-exception-1.0
RHeCos-1.1
RPL-1.1
RPL-1.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
RPSL-1.0
RSA-MD
RSCPL
Rdisc
Ruby
SAX-PD
SCEA
SGI-B-1.0
SGI-B-1.1
SGI-B-2.0
SGP4 [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
SHL-0.5 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
SHL-0.51
SHL-2.0
SHL-2.1
SISSL
SISSL-1.2
SMLNJ
SMPPL
SNIA
SPL-1.0
SSH-OpenSSH
SSH-short
SSPL-1.0
SWI-exception [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
SWL
Saxpath
SchemeReport [skip ci] Updated licenses and gitignores 2021-11-21 00:25:17 +00:00
Sendmail
Sendmail-8.23
SimPL-2.0
Sleepycat
Spencer-86 [skip ci] Updated licenses and gitignores 2022-09-04 00:20:43 +00:00
Spencer-94
Spencer-99
SugarCRM-1.1.3
SunPro [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
Swift-exception
Symlinks [skip ci] Updated licenses and gitignores 2022-12-11 00:19:34 +00:00
TAPR-OHL-1.0
TCL
TCP-wrappers
TMate
TORQUE-1.1
TOSL
TPDL [skip ci] Updated licenses and gitignores 2022-12-25 00:19:36 +00:00
TPL-1.0 [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
TTWL [skip ci] Updated licenses and gitignores 2022-12-25 00:19:36 +00:00
TU-Berlin-1.0
TU-Berlin-2.0
TermReadKey [skip ci] Updated licenses and gitignores 2023-05-22 00:25:26 +00:00
UCAR [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
UCL-1.0
UPL-1.0
Unicode-DFS-2015
Unicode-DFS-2016
Unicode-TOU
Universal-FOSS-exception-1.0
UnixCrypt [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
Unlicense
VOSTROM
VSL-1.0
Vim
W3C
W3C-19980720
W3C-20150513
WTFPL
Watcom-1.0
Widget-Workshop [skip ci] Updated licenses and gitignores 2023-05-22 00:25:26 +00:00
Wsuipa
WxWindows-exception-3.1
X11
X11-distribute-modifications-variant [skip ci] Updated licenses and gitignores 2022-02-20 00:16:03 +00:00
XFree86-1.1
XSkat
Xdebug-1.03 [skip ci] Updated licenses and gitignores 2023-05-22 00:25:26 +00:00
Xerox
Xfig [skip ci] Updated licenses and gitignores 2023-05-22 00:25:26 +00:00
Xnet
YPL-1.0
YPL-1.1
ZPL-1.1
ZPL-2.0
ZPL-2.1
Zed
Zend-2.0
Zimbra-1.3
Zimbra-1.4
Zlib
blessing
bzip2-1.0.6 Fix incorrect git ignore rule and add missing license files (#25135) 2023-06-08 09:36:53 +02:00
checkmk [skip ci] Updated licenses and gitignores 2022-09-25 00:20:43 +00:00
copyleft-next-0.3.0
copyleft-next-0.3.1
cryptsetup-OpenSSL-exception [skip ci] Updated licenses and gitignores 2023-05-22 00:25:26 +00:00
curl
diffmark
dtoa [skip ci] Updated licenses and gitignores 2023-07-03 00:30:17 +00:00
dvipdfm
eCos-exception-2.0
eGenix
etalab-2.0
freertos-exception-2.0
gSOAP-1.3b
gnu-javamail-exception [skip ci] Updated licenses and gitignores 2022-09-04 00:20:43 +00:00
gnuplot
i2p-gpl-java-exception
iMatix
libpng-2.0
libpri-OpenH323-exception [skip ci] Updated licenses and gitignores 2023-05-22 00:25:26 +00:00
libselinux-1.0
libtiff
libutil-David-Nugent [skip ci] Updated licenses and gitignores 2022-11-27 00:19:33 +00:00
metamail [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
mif-exception
mpi-permissive [skip ci] Updated licenses and gitignores 2022-08-14 00:20:44 +00:00
mpich2 [skip ci] Updated licenses and gitignores 2022-08-14 00:20:44 +00:00
mplus [skip ci] Updated licenses and gitignores 2022-03-20 00:24:18 +00:00
openvpn-openssl-exception
psfrag
psutils
snprintf [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
u-boot-exception-2.0
vsftpd-openssl-exception [skip ci] Updated licenses and gitignores 2023-05-01 00:25:30 +00:00
w3m [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
x11vnc-openssl-exception [skip ci] Updated licenses and gitignores 2022-10-30 00:19:37 +00:00
xinetd
xlock [skip ci] Updated licenses and gitignores 2023-02-26 00:15:26 +00:00
xpp
zlib-acknowledgement