diff --git a/RELEASENOTE.md b/RELEASENOTE.md
index 4eb7f0918cb..587767c4e61 100644
--- a/RELEASENOTE.md
+++ b/RELEASENOTE.md
@@ -1,5 +1,11 @@
-Version Notes (Current Version: v1.8)
+Version Notes (Current Version: v1.8.1)
 =======================================
+v1.8.1
+-----------
+1. Fix bug when serialize attribute argument for type array. (https://github.com/dotnet/docfx/issues/280)
+2. Fix bug when include file link to an anchor.
+3. Don't modify link when target file not existed.
+
 v1.8
 -----------
 1. Support multiple regions selection, code lines highlight and dedent length setting in [Code Snippet](http://dotnet.github.io/docfx/spec/docfx_flavored_markdown.html#code-snippet). (https://github.com/dotnet/docfx/issues/189)