diff --git a/spring-session-data-geode/src/main/resources/changelog.txt b/spring-session-data-geode/src/main/resources/changelog.txt
index b09e6a9..e75afe9 100644
--- a/spring-session-data-geode/src/main/resources/changelog.txt
+++ b/spring-session-data-geode/src/main/resources/changelog.txt
@@ -4,6 +4,25 @@ https://github.com/spring-projects/spring-session-data-geode
 ============================================================
 
 
+Changes in version 2.5.0-M1 (2021-01-19)
+----------------------------------------
+Aligns Spring Session for Apache Geode (SSDG) with the latest GA versions of Spring Framework 5.3, Spring Boot 2.4,
+Spring Data Ockham/2.4 and Spring Session 2.5.
+
+* Adds AbstractCookieSerializer and AbstractHttpSessionIdResolver base classes to simplify the implementation of
+the Spring Session core CookieSerializer and HttpSessionIdResolver interfaces.
+* Fixes bug in Spring Session (core) infrastructure component initialization.
+Resolves https://github.com/spring-projects/spring-session-data-geode/issues/51.
+* Upgrades to Gradle 6.8.
+* Upgrades to Spring Framework 5.3.3.
+* Upgrades to Spring Boot 2.4.2.
+* Upgrades to Spring Data BOM 2021.0.0-M1/Pascal-M1.
+* Upgrades to Spring Data Commons 2.5.0-M1.
+* Upgrades to Spring Data for Apache Geode 2.5.0-M1.
+* Upgrades to Spring Session (core) 2.5.0-M1.
+* Upgrades to Spring Session BOM 2021.0.0.
+
+
 Changes in version 2.4.1 (2021-01-12)
 -------------------------------------
 Aligns Spring Session for Apache Geode (SSDG) with the latest GA versions of Spring Framework 5.3, Spring Boot 2.4,