change: Update CHANGELOG.md (#2842)

Author: shreyapandit

CHANGELOG.md

@@ -2,9 +2,28 @@
 
 ## v2.72.3 (2022-01-10)
 
+### Features
+
+ * default repack encryption
+ * support large pipeline
+ * add support for pytorch 1.10.0
+ 
+### Documentation Changes
+
+ * SageMaker model parallel library 1.6.0 API doc
+
 ### Bug Fixes and Other Changes
 
- * update master from dev
+ * Model Registration with BYO scripts
+ * Add ContentType in test_auto_ml_describe
+ * Re-deploy static integ test endpoint if it is not found
+ * fix kmeans test deletion sequence, increment lineage statics
+ * Increment static lineage pipeline
+ * Fix lineage query integ tests
+ * Add label_headers option for Clarify ModelExplainabilityMonitor
+ * Add action type to lineage object
+ * Collapse cross-account artifacts in query lineage response
+ * Update CHANGELOG.md to remove defaulting dot characters
 
 ## v2.72.2 (2022-01-06)