diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -47,3 +47,4 @@ 628a08e6aaeff2c3f9e0e268e854f870e6778e53
 941d675f10cfa7d774815bfacfb37085751b7a0d v4.14.0
 75e11d32c0be0a457198f07888e7ef650cfa6888 v4.14.1
 6c6f49fda0191c4641dcd43aa0d4376b8b728d40 v4.15.0
+184dea5e01c36e6474c83d3bb34719cdfec22b0d v4.15.1