Merge pull request #53 from cybozu-go/bump-1.6.3

Bump version to 1.6.3

CHANGELOG.md

@@ -5,6 +5,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.6.3] - 2023-01-19
+
 ### Changed
 - Update dependencies in [#52](https://github.com/cybozu-go/etcdutil/pull/52)
     - Update etcd to v3.5.6
@@ -98,7 +100,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 This is the first release.
 
-[Unreleased]: https://github.com/cybozu-go/etcdutil/compare/v1.6.2...HEAD
+[Unreleased]: https://github.com/cybozu-go/etcdutil/compare/v1.6.3...HEAD
+[1.6.3]: https://github.com/cybozu-go/etcdutil/compare/v1.6.2...v1.6.3
 [1.6.2]: https://github.com/cybozu-go/etcdutil/compare/v1.6.1...v1.6.2
 [1.6.1]: https://github.com/cybozu-go/etcdutil/compare/v1.6.0...v1.6.1
 [1.6.0]: https://github.com/cybozu-go/etcdutil/compare/v1.5.0...v1.6.0