update changelog

CHANGELOG.md

@@ -33,6 +33,10 @@ under the License.
 
 ### 2.1.1 (Sun Apr 23 15:44:21 2023 +0100)
 
+**Database Migrations**
+- [##23980](https://github.com/apache/superset/pull/23980) fix(migration): handle permalink edge cases correctly (@villebro)
+- [23888](https://github.com/apache/superset/pull/23888) chore(key-value): use json serialization for main resources (@villebro)
+
 **Fixes**
 - [#23723](https://github.com/apache/superset/pull/23723) add enforce URI query params with a specific for MySQL (@dpgaspar)
 - [#24054](https://github.com/apache/superset/pull/24054) fix: handle temporal columns in presto partitions (@giftig)
@@ -57,6 +61,7 @@ under the License.
 - [#24056](https://github.com/apache/superset/pull/24056) chore: Remove unnecessary information from response (@geido)
 
 
+
 ### 2.1.0 (Thu Mar 16 21:13:05 2023 -0700)
 **Database Migrations**
 - [#23139](https://github.com/apache/superset/pull/23139) fix: memoized decorator memory leak (@dpgaspar)

UPDATING.md

@@ -27,6 +27,7 @@ assists people when migrating to a new version.
 - [24256](https://github.com/apache/superset/pull/24256): `Flask-Login` session validation is now set to `strong` by default. Previous setting was `basic`.
 
 ### Other
+- [23888](https://github.com/apache/superset/pull/23888): Database Migration for json serialization instead of pickle should upgrade/downgrade correctly when bumping to/from this patch version
 
 ## 2.1.0