diff --git a/README.md b/README.md
index 37200fb35..a6db56aa3 100755
--- a/README.md
+++ b/README.md
@@ -810,6 +810,8 @@ The latency between encoder and player with realtime config([CN][v2_CN_LowLatenc
 |   2014-12-12  |   2.0.70  |[0.1s][p13]|[0.4s][p14]|   1.0s    |   0.9s    |
 |   2014-12-16  |   2.0.72  |   0.1s    |   0.4s    |[0.8s][p15]|[0.6s][p16]|
 
+> 2018-08-05, [c45f72e](https://github.com/ossrs/srs/commit/c45f72ef7bac9c7cf85b9125fc9e3aafd53f396f), Refine HTTP-FLV latency, support realtime mode. 2.0.252
+
 We use FMLE as encoder for benchmark. The latency of server is 0.1s+, 
 and the bottleneck is the encoder. For more information, read 
 [bug #257][bug #257-c0].