Updated changelog.

See #3597

Author: mp911de

src/main/resources/changelog.txt

@@ -1,6 +1,13 @@
 Spring Data MongoDB Changelog
 =============================
 
+Changes in version 3.0.9.RELEASE (2021-04-14)
+---------------------------------------------
+* #3623 - `@Aggregation` repository query method causes `NullPointerException` when the result is empty.
+* #3609 - SimpleReactiveMongoRepository#saveAll does not populate @Id property if it is immutable.
+* #3414 - Criteria or toEquals fail if contains regex [DATAMONGO-2559].
+
+
 Changes in version 3.1.7 (2021-03-31)
 -------------------------------------
 * #3613 - Use StringUtils.replace(…) instead of String.replaceAll(…) for mapKeyDotReplacement.
@@ -3403,5 +3410,6 @@ Repository
 
 
 
+