diff --git a/.hgtags b/.hgtags
index 94ad13b35b1..fe20cad52ee 100644
--- a/.hgtags
+++ b/.hgtags
@@ -173,3 +173,4 @@ f3edf13dc339b8942ae6b309771ab197dd8ce6fa v3.6.0a3
 5b0ca4ed5e2f0669d76ece7ef975c544580f12b4 v3.6.0b1
 b9fadc7d1c3f9c3c77f32f35afbe1a1cc38070e6 v3.6.0b2
 8345e066c0ed713c3e510cbc8fafc1c38d6d306b v3.6.0b3
+18496abdb3d5c2730a659b747a89261b2219fecf v3.6.0b4