added release notes for v0.5.0

CHANGELOG.md

@@ -6,6 +6,21 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [0.5.0] - 2019-02-04
+### Added
+* Version controlled model zoo with git-lfs
+* Dice + entropy loss function
+* Antialiasing when randomly scaling input images during training
+* Support of multiple optimisers and gradients in applications
+
+### Fixed
+* An issue of rounding image sizes when `pixdim` is specified
+* An issue of incorrect Dice when image patch does not include every class
+* Numerous documentation issues
+
+### Changed
+* Tested with TensorFlow 1.12
+
 ## [0.4.0] - 2018-09-13
 ### Added
 * `niftynet.layer`: new layers
@@ -100,7 +115,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 * Bugs in data augmentation, I/O, sampler
 
-[Unreleased]: https://github.com/NifTK/NiftyNet/compare/v0.4.0...HEAD
+[Unreleased]: https://github.com/NifTK/NiftyNet/compare/v0.5.0...HEAD
+[0.5.0]: https://github.com/NifTK/NiftyNet/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/NifTK/NiftyNet/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/NifTK/NiftyNet/compare/v0.2.2...v0.3.0
 [0.2.2]: https://github.com/NifTK/NiftyNet/compare/v0.2.1...v0.2.2