HBASE-21493 update CHANGES.txt for 1.2.9 RC0
diff --git a/CHANGES.txt b/CHANGES.txt
index 4a7dee2..ef00846 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,25 @@
HBase Change Log
+Release Notes - HBase - Version 1.2.9
+
+** Sub-task
+ * [HBASE-21347] - Backport HBASE-21200 "Memstore flush doesn't finish because of seekToPreviousRow() in memstore scanner." to branch-1
+
+** Bug
+ * [HBASE-20604] - ProtobufLogReader#readNext can incorrectly loop to the same position in the stream until the the WAL is rolled
+ * [HBASE-21357] - RS should abort if OOM in Reader thread
+ * [HBASE-21417] - Pre commit build is broken due to surefire plugin crashes
+ * [HBASE-21424] - Change flakies and nightlies so scheduled less often
+ * [HBASE-21445] - CopyTable by bulkload will write hfile into yarn's HDFS
+
+** Improvement
+ * [HBASE-21263] - Mention compression algorithm along with other storefile details
+
+** Task
+ * [HBASE-21493] - Release 1.2.9
+
+
Release Notes - HBase - Version 1.2.8 2018/10/20
** Sub-task
