release v0.9.0

Signed-off-by: Eguzki Astiz Lezaun <[email protected]>

CHANGELOG.md

@@ -4,6 +4,16 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [0.9.0] - Mar 31, 2023
+
+### Added
+
+- Developer account endpoint pages [#55](https://github.com/3scale/3scale-porta-go-client/pull/55)
+- Backend endpoint pages [#53](https://github.com/3scale/3scale-porta-go-client/pull/53)
+- Backend methods endpoint pages [#54](https://github.com/3scale/3scale-porta-go-client/pull/54)
+- Backend metrics endpoint pages [#54](https://github.com/3scale/3scale-porta-go-client/pull/54)
+- Backend mappingrules endpoint pages [#54](https://github.com/3scale/3scale-porta-go-client/pull/54)
+
 ## [0.8.0] - Mar 15, 2023
 
 ### Added
@@ -53,7 +63,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [0.1.0] - Nov 16, 2020
 
-[Unreleased]: https://github.com/3scale/3scale-porta-go-client/compare/v0.8.0...HEAD
+[Unreleased]: https://github.com/3scale/3scale-porta-go-client/compare/v0.9.0...HEAD
+[0.9.0]: https://github.com/3scale/3scale-porta-go-client/releases/tag/v0.9.0
 [0.8.0]: https://github.com/3scale/3scale-porta-go-client/releases/tag/v0.8.0
 [0.7.0]: https://github.com/3scale/3scale-porta-go-client/releases/tag/v0.7.0
 [0.6.0]: https://github.com/3scale/3scale-porta-go-client/releases/tag/v0.6.0