diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -58,3 +58,4 @@ 8a824544d95037d76d99b104b5d2363858101d53
 ccd806a2d9482f61bd7e8956a02a28eb24a1d46a v4.17.3
 e533ca02ccc205189b7bad9f227a312212772022 v4.17.4
 ba6a6dc9ecd7fd8b1dcd6eb0c4ee0210e897c426 v4.18.0
+17bc818b41bcf6883b9ff0da31f01d8c2a5d0781 v4.18.1