diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5c90222e7..c3871d3a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 # Master
+- IntOrString is now object thus it can be int or string. #18 #359
 - Adding stream package to support calls like exec. The old way of calling them is deprecated. See [Troubleshooting](README.md#why-execattach-calls-doesnt-work)).
 - config.http_proxy_url is deprecated. use configuration.proxy instead.
 - Configuration is not a singleton object anymore. Please use Configuraion.set_default to change default configuration.