diff --git a/CHANGES.txt b/CHANGES.txt
index 6e69a6e..d5d10e2 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -5,6 +5,7 @@
 INCOMPATIBLE CHANGES
 
 ALL CHANGES:
+TEZ-4238: Check null mrReader in MRInput.close (László Bodor reviewed by Jonathan Turner Eagles)
 TEZ-4234: Compressor can cause IllegalArgumentException in Buffer.limit where limit exceeds capacity (László Bodor reviewed by Rajesh Balamohan, Jonathan Turner Eagles)
 TEZ-4230: LocalContainerLauncher can kill task future too early, causing app hang (László Bodor reviewed by Jonathan Turner Eagles)
 TEZ-4228: TezClassLoader should be used in TezChild and for Configuration objects