Update changelog

Author: AldaronLau

CHANGELOG.md

@@ -4,20 +4,29 @@ All notable changes to `parsenic` will be documented in this file.
 The format is based on [Keep a Changelog], and this project adheres to
 [Semantic Versioning].
 
-## [0.2.0] - Unreleased
+## [0.2.0] - 2024-11-05
+
 ### Added
  - `error` module with error types
  - `result` module with `Result` type aliases
+ - `unstable-error` feature implementing `Error` for error types
+ - `Empty` reader and `empty()` constructor
+ - `Purge` writer and `purge()` constructor
+ - `class` module
+ - `Read` and `Write` extension traits on `Reader` and `Writer`
 
 ### Changed
  - Bounds of `Int` and `UInt`
  - Now depends on `traitful` for extension traits
+ - `io` module is behind a feature flag
+ - `UInt` and `Int` are now in `class` module
 
 ### Fixed
  - Broken links in README and docs
  - Parsing `u8()` not advancing reader
 
 ## [0.1.0] - 2023-07-16
+
 ### Added
  - `be` module
  - `le` module