diff --git a/.hgtags b/.hgtags
index 8fa56c75b70eb896f37dc53f6bc335fd588c0293..98e4c7675791440dc844a7b7bcbc47b2dae52395 100644
--- a/.hgtags
+++ b/.hgtags
@@ -71,3 +71,4 @@ b723921b5c711bd24dbe77dc76ef488b544dac78 2.5.0-release
 b723921b5c711bd24dbe77dc76ef488b544dac78 DRTVWR-31_2.5.0-release
 92e58e51776a4f8c29069b1a62ff21454d2085f0 2.6.0-start
 63a6aedfce785a6c760377bf685b2dae616797d2 2.5.1-start
+4dede9ae1ec74d41f6887719f6f1de7340d8578d 2.5.1-release