Updated changelog.

See #1972

Author: mp911de

src/main/resources/changelog.txt

@@ -1,6 +1,13 @@
 Spring Data Redis Changelog
 ===========================
 
+Changes in version 2.3.8.RELEASE (2021-03-17)
+---------------------------------------------
+* #1991 - Accept cluster nodes without hostname.
+* #1979 - No enum constant io.lettuce.core.protocol.CommandType.GIS.CONTAINS.
+* #1964 - Reference documentation shows usage of deprecated code.
+
+
 Changes in version 2.5.0-M4 (2021-02-18)
 ----------------------------------------
 
@@ -2310,5 +2317,6 @@ General
 
 
 
+