Update CHANGELOG

CHANGELOG.md

 # Change Log
 
+## [Unreleased]
+
+### Added
+
+- Added a brand new installer.
+- Added support for multi-constraints dependencies.
+- Added a cache versioning system.
+
+### Changed
+
+- Improved virtualenv detection and management.
+- Wilcard `python` dependencies are now equivalent to `~2.7 || ^3.4`.
+
+
 ## [0.11.5] - 2018-09-04
 
 ### Fixed
@@ -467,7 +481,7 @@ Initial release
 
 
 
-[Unreleased]: https://github.com/sdispater/poetry/compare/0.11.5...master
+[Unreleased]: https://github.com/sdispater/poetry/compare/master...develop
 [0.11.5]: https://github.com/sdispater/poetry/releases/tag/0.11.5
 [0.11.4]: https://github.com/sdispater/poetry/releases/tag/0.11.4
 [0.11.3]: https://github.com/sdispater/poetry/releases/tag/0.11.3