Updated changelog.

See #1117

Author: mp911de

src/main/resources/changelog.txt

@@ -1,6 +1,12 @@
 Spring Data Cassandra Changelog
 ===============================
 
+Changes in version 3.1.9 (2021-05-14)
+-------------------------------------
+* #1129 - `DataClassRowMapper` doesn't correctly convert generic fields.
+* #1126 - Allow Java 16 records to be used for `@PrimaryKeyClass`.
+
+
 Changes in version 3.2.0 (2021-04-14)
 -------------------------------------
 * #1115 - Refactor test framework infrastructure classes.
@@ -1546,5 +1552,6 @@ Changes in version 1.0.0.M1 (2014-03-31)
 
 
 
+