DATACMNS-1815 - Updated changelog.

Author: mp911de

src/main/resources/changelog.txt

@@ -1,6 +1,14 @@
 Spring Data Commons Changelog
 =============================
 
+Changes in version 2.1.21.RELEASE (2020-10-28)
+----------------------------------------------
+* DATACMNS-1816 - Wording changes.
+* DATACMNS-1815 - Release 2.1.21 (Lovelace SR21).
+* DATACMNS-1804 - Correct grammar in Exception messages thrown by Repository classes.
+* DATACMNS-1792 - Fix Typos in commons/repositories documentation.
+
+
 Changes in version 2.4.0-RC2 (2020-10-14)
 -----------------------------------------
 * DATACMNS-1807 - Code examples for Kotlin declared as Java.
@@ -2880,5 +2888,6 @@ Repository
 
 
 
+