diff --git a/.hgtags b/.hgtags
index 4248c5a5f..e2628fbe5 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,3 +1,4 @@
 e048b594f33613d53b59a3578d17511dc833ecb5 MIX10
 a6b8d094848d4efee67c787e52e5f7d358e3f0c1 0.5
 48d6ca62955335ce6a51859d5fab43b3b48d1911 0.8
+523f3564d2c053ff068970eab8c64eaf74e3dcec perf baseline