CHANGELOG.md in aws-sdk-mediaconvert-1.122.0 vs CHANGELOG.md in aws-sdk-mediaconvert-1.123.0

- old
+ new

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.123.0 (2024-01-03)
+------------------
+
+* Feature - This release includes video engine updates including HEVC improvements, support for ingesting VP9 encoded video in MP4 containers, and support for user-specified 3D LUTs.
+
 1.122.0 (2023-11-28)
 ------------------
 
 * Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.
 