CHANGELOG.md in farseer-0.8.0 vs CHANGELOG.md in farseer-0.9.0

@@ -5,9 +5,21 @@
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [0.9.0] - 2024-06-11
+### Added
+- `Farseer::Empty` which always succeeds and parses nothing, returning the whole
+    string as rest.
+
+### Changed
+- Change usage of `#eql?` to `#==` in `Farseer::Result`.
+- `Farseer::And` does not join the resulting tokens anymore, but rather return
+    an array of tokens.
+- Remove all development dependencies from `Gemfile` in favor of having
+    `lollipop` in the `gemspec`.
+
 ## [0.8.0] - 2024-06-04
 ### Added
 - `Farseer::Map` which is a parser with a callback to map the resulting token
     into something else.
 - `Farseer::MapFactory` which adds `#map`, a factory method for new parsers with