diff --git a/.hgtags b/.hgtags
index 5b82fbb31c..fa1ec04575 100644
--- a/.hgtags
+++ b/.hgtags
@@ -19,3 +19,4 @@ c0fc6ee9b062d21eba99260a7233aed92dae7f67 4.8.0
 32ee69ddd528fb464907a8a34ae7bdf7514f8c8f 5.0.0
 905ec6c64da5676b279d300ec92f9b79304319ea 5.2.0
 4a915ea1dcb8283793fe7a7ee207897376ad82f5 5.4.0
+ca6cf2121b115188ca3af96578360379c5e036b8 5.6.0