Updated changelog.

See #1831

Author: christophstrobl

src/main/resources/changelog.txt

@@ -1,6 +1,16 @@
 Spring Data Redis Changelog
 ===========================
 
+Changes in version 2.5.0-M2 (2021-01-13)
+----------------------------------------
+* DATAREDIS-1263 - Kotlin code fails to compile on JDK 15.
+* DATAREDIS-1258 - Update CI jobs with Docker Login.
+* #1942 - Update copyright year to 2021.
+* #1940 - Upgrade to Lettuce 6.0.2.RELEASE.
+* #1939 - Upgrade to xstream 1.4.15.
+* #1779 - Update repository after GitHub issues migration.
+
+
 Changes in version 2.4.3 (2021-01-13)
 -------------------------------------
 * DATAREDIS-1263 - Kotlin code fails to compile on JDK 15.
@@ -2251,5 +2261,6 @@ General
 
 
 
+