CHANGELOG.md in h3-3.5.0 vs CHANGELOG.md in h3-3.5.1

@@ -4,9 +4,14 @@
 
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 We track the MAJOR and MINOR version levels of Uber's H3 project (https://github.com/uber/h3) but maintain independent patch levels so we can make small fixes and non breaking changes.
 
+## [3.5.1] - 2019-8-5
+### Changed
+- Renamed 26 methods to be more idiomatic with Ruby conventions. The old names are deprecated until 2020 when they will be removed (#59).
+- Added Zeitwerk as the code loader.
+
 ## [3.5.0] - 2019-7-25
 ### Added
 - `h3_faces` and `max_face_count` support (#56)
 ### Changed
 - New CMake options to prevent unnecessary building of filter apps and benchmarks.