Update changelog for release

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1454549 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/main.distribution/doc/changelog.txt b/main.distribution/doc/changelog.txt
index 254b7bf..e3064f3 100644
--- a/main.distribution/doc/changelog.txt
+++ b/main.distribution/doc/changelog.txt
@@ -1,3 +1,9 @@
+Changes from 4.2.0 to 4.2.1
+---------------------------
+
+** Improvement
+    * Update to framework and main 4.2.1
+
 Changes from 4.0.3 to 4.2.0
 ---------------------------