diff --git a/.hgtags b/.hgtags
index b7e1019ca..8853a2f7c 100644
--- a/.hgtags
+++ b/.hgtags
@@ -365,3 +365,4 @@ cd84e467c72967b9f5fb4d96bfc708c93edeb634 release-1.3.15
 9ba2542d75bf62a3972278c63561fc2ef5ec573a release-1.5.7
 eaa76f24975948b0ce8be01838d949122d44ed67 release-1.5.8
 5a1759f33b7fa6270e1617c08d7e655b7b127f26 release-1.5.9
+b798fc020e3a84ef68e6c9f47865a319c826d33c release-1.5.10