Revise CHANGES.txt for 0.98.20RC0 attempt 2
diff --git a/CHANGES.txt b/CHANGES.txt
index 79d24f7..58db19b 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -51,6 +51,7 @@
 ** Task
     * [HBASE-4368] - Expose processlist in shell (per regionserver and perhaps by cluster)
     * [HBASE-15895] - remove unmaintained jenkins build analysis tool.
+    * [HBASE-159870 - [0.98] Downgrade to maven-site-plugin version 2.4
 
 
 Release 0.98.19 - 4/29/2016