Prepare release

CHANGELOG.md

@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+
+## [3.1.2] - 2018-02-16
+
 ### Added
 
 - `Number::fromNumber` to be used when the actual type is not known
@@ -271,7 +274,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - 2012-12-10 Renamed Money::getUnits() to Money::getAmount()
 
 
-[Unreleased]: https://github.com/moneyphp/money/compare/v3.1.0...HEAD
+[Unreleased]: https://github.com/moneyphp/money/compare/v3.1.2...HEAD
+[3.1.2]: https://github.com/moneyphp/money/compare/v3.1.1...v3.1.2
+[3.1.1]: https://github.com/moneyphp/money/compare/v3.1.0...v3.1.1
 [3.1.0]: https://github.com/moneyphp/money/compare/v3.0.9...v3.1.0
 [3.0.9]: https://github.com/moneyphp/money/compare/v3.0.8...v3.0.9
 [3.0.8]: https://github.com/moneyphp/money/compare/v3.0.7...v3.0.8