diff --git a/README.md b/README.md
index f941190..8cf8f1b 100755
--- a/README.md
+++ b/README.md
@@ -84,12 +84,14 @@ Stream-based compressor/decompressor `SnappyOutputStream`/`SnappyInputStream` ar
 
 #### Compatibility Notes
  * `SnappyOutputStream` and `SnappyInputStream` use `[magic header:16 bytes]([block size:int32][compressed data:byte array])*` format. You can read the result of `Snappy.compress` with `SnappyInputStream`, but you cannot read the compressed data generated by `SnappyOutputStream` with `Snappy.uncompress`. Here is the data format compatibility matrix:
+ * `SnappyHadoopCompatibleOutputStream` does not emit a file header but write out the current block size as a  preemble to each block
 
-| Write\Read      | `Snappy.uncompress`   | `SnappyInputStream`  | `SnappyFramedInputStream` |
-| --------------- |:-------------------:|:------------------:|:-----------------------:|
-| `Snappy.compress` | ok | ok | x |
-| `SnappyOutputStream`  | x | ok | x |
-| `SnappyFramedOutputStream` | x | x | ok |
+| Write\Read      | `Snappy.uncompress`   | `SnappyInputStream`  | `SnappyFramedInputStream` | `org.apache.hadoop.io.compress.SnappyCodec` |
+| --------------- |:-------------------:|:------------------:|:-----------------------:|:-------------------------------------------:|
+| `Snappy.compress` | ok | ok | x | x |
+| `SnappyOutputStream`  | x | ok | x | x |
+| `SnappyFramedOutputStream` | x | x | ok | x |
+| `SnappyHadoopCompatibleOutputStream` | x | x | x | ok |
 
 ### BitShuffle API (Since 1.1.3-M2)