diff --git a/.hgtags b/.hgtags
index d50d565ae..59f333e81 100644
--- a/.hgtags
+++ b/.hgtags
@@ -11,3 +11,4 @@
 4db981a0d9eb135e3e1c07765cff8d66f7a55cca release ns-3.0.9
 b5bf2588cde2f1273b1095cc5c83a0c272e55370 release ns-3.0.10
 ee5e1da76ecc52337f097cd90ebb50a3d49ec541 release-3.0.11
+b17f2928291eec5bf5b1c59a4a5fd583f704ac40 release ns-3.0.12