diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Master
 
+* Added support for `:tag` option in mercurial sources. [Esteban Bouza](https://github.com/estebanbouza) [#16](https://github.com/CocoaPods/cocoapods-downloader/issues/16)
+* Added support for `:branch` option in mercurial sources. [Esteban Bouza](https://github.com/estebanbouza) [#17](https://github.com/CocoaPods/cocoapods-downloader/issues/17)
+
 ## 0.4.1
 
 * add shellescape for some path arguments in git.rb