chore: update changelog for version bump to 0.18.0

Author: tsloughter

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.18.0] - 2025-12-11
+
+### Changed
+- Use setops helper for ssl connections by @CrowdHailer in [#112](https://github.com/erleans/pgo/pull/112)
+
 ## [0.16.0] - 2025-12-07
 
 ### Changed
@@ -229,6 +234,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## New Contributors
 * @tsloughter made their first contribution
+[0.18.0]: https://github.com/erleans/pgo/compare/v0.17.0..v0.18.0
 [0.16.0]: https://github.com/erleans/pgo/compare/v0.15.0..v0.16.0
 [0.15.0]: https://github.com/erleans/pgo/compare/v0.13.0..v0.15.0
 [0.13.0]: https://github.com/erleans/pgo/compare/v0.12.0..v0.13.0