diff --git a/.hgtags b/.hgtags
index 837ddb3fc8..4724df0f89 100644
--- a/.hgtags
+++ b/.hgtags
@@ -14,3 +14,4 @@ eef7e68926b3f9c34ae5dc12bcd0ec6884918c09 4.8.0
 fd97dee9a2f6c5fc4c3ddd7298fdcf4c917ef5d9 5.0.0
 c07759c9b8d3b7733620789a050e7b6de418cf99 5.2.0
 160bbe8565f066ff2e7565fd8a9aceec2c3a0bed 5.4.0
+51f597bea6844c61a7dd658329a0e55e011e5327 5.6.0