diff --git a/.hgtags b/.hgtags
index 17625c58c81..0d44d35e026 100644
--- a/.hgtags
+++ b/.hgtags
@@ -19,3 +19,4 @@ b3d40b261ddbd2d86b1eaf7c4b3f4d60fdbf25f4 v1.4b3
 fb128ab641015e92cc0c227a2e3be3ae71aba00d v1.5a2
 000b1d4c1aa011c2d407900bce7b829eedcb745a v1.5a3
 31286d460c6ce43fc86771da2fc32eec668c0a72 v1.5a4
+798e142331dfe161335f0649ed923bfdd9730e47 v1.5b1