update relese note for v2.2.0 (#3474)

RELEASES

@@ -1,6 +1,15 @@
 
 Releases
 -----------
+v2.2.0
+------
+- Add support for B-slice error concealment
+- Thread decoding support for multi-slice frame
+- SIMD optimization for loongson platform
+- Support the arm64 compilation on Windows and MacOS platform
+- Some Bug fixes for B-frame decoding
+- Some minor bug fixes
+
 v2.1.1
 ------
 - release x86 and x64 libraries for android platform
@@ -204,6 +213,21 @@ Binaries
 These binary releases are distributed under this license:
 http://www.openh264.org/BINARY_LICENSE.txt
 
+v2.2.0
+http://ciscobinary.openh264.org/libopenh264-2.2.0-android-arm.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-android-arm64.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-android-x86.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-android-x64.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-ios.a.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-linux32.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-linux64.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-linux-arm.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-linux-arm64.6.so.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-osx-arm64.6.dylib.bz2
+http://ciscobinary.openh264.org/libopenh264-2.2.0-osx-x64.6.dylib.bz2
+http://ciscobinary.openh264.org/openh264-2.2.0-win32.dll.bz2
+http://ciscobinary.openh264.org/openh264-2.2.0-win64.dll.bz2
+
 v2.1.1
 http://ciscobinary.openh264.org/libopenh264-2.1.1-android-arm.so.bz2
 http://ciscobinary.openh264.org/libopenh264-2.1.1-android-arm.so.sig.bz2