Updated changelog.

See #373

Author: schauder

src/main/resources/changelog.txt

@@ -1,6 +1,13 @@
 Spring Data KeyValue Changelog
 ==========================
 
+Changes in version 2.6.0-M1 (2021-07-16)
+----------------------------------------
+* #378 - Move off Google Guava usage in tests.
+* #374 - Consider `java.math` and `java.util` types as simple types.
+* #365 - Update CI to Java 16.
+
+
 Changes in version 2.4.11 (2021-07-16)
 --------------------------------------
 
@@ -978,5 +985,6 @@ Changes in version 1.0.0.M1 (2015-06-02)
 
 
 
+