diff --git a/.hgtags b/.hgtags
index 24924d1a33..6b14f08d2e 100644
--- a/.hgtags
+++ b/.hgtags
@@ -10,3 +10,4 @@ d069f9f1cdc3fea39e71415268582abb2b333ea1 2.6.0
 89062be47c1b38757e60cf549c3dbcaae1089385 2.6.1
 01b9c2f204fa037e9e900640b7be126fa5270357 2.6.2
 946e01f49345e08a4f6c2a334cc597105f1ca277 2.6.3
+a19b876ed9c4dd7182ca15302e9720abfa988502 2.6.4