diff --git a/docs/index.html.haml b/docs/index.html.haml
index 4379319..6da0b08 100644
--- a/docs/index.html.haml
+++ b/docs/index.html.haml
@@ -38,6 +38,10 @@
 
   %h3 Change Log
   %ul
+    %li
+      <a href="https://github.com/c3js/c3/releases/tag/v0.4.23">v0.4.23</a><span class="gray">&nbsp;-&nbsp;2018-05-18</span>
+      %ul
+        %li Add axis.x.tick.multilineMax option (0.4 branch).
     %li
       <a href="https://github.com/c3js/c3/releases/tag/v0.6.1">v0.6.1</a><span class="gray">&nbsp;-&nbsp;2018-05-17</span>
       %ul