chore: prep for v0.5.0 release

CHANGELOG.md

@@ -7,6 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.5.0] - 2024-03-06
+
+### Added
+
+* phirgen: add support for Sleep/Idle mop in https://github.com/CQCL/pytket-phir/pull/141
+  * requires `phir>=0.3.1`
+
+### Changed
+
+* phirgen: better comments for classical expressions in PHIR output
+
 ## [0.4.4] - 2024-02-27
 
 ### Fixed
@@ -120,6 +131,7 @@ First release.
 [0.4.2]: https://github.com/CQCL/pytket-phir/compare/v0.4.1...v0.4.2
 [0.4.3]: https://github.com/CQCL/pytket-phir/compare/v0.4.2...v0.4.3
 [0.4.4]: https://github.com/CQCL/pytket-phir/compare/v0.4.3...v0.4.4
-[unreleased]: https://github.com/CQCL/pytket-phir/compare/v0.4.4...HEAD
+[0.5.0]: https://github.com/CQCL/pytket-phir/compare/v0.4.4...v0.5.0
+[unreleased]: https://github.com/CQCL/pytket-phir/compare/v0.5.0...HEAD
 
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