Prepare v0.3.7

Signed-off-by: AKP <tom@tdpain.net>

Author: codemicro

CHANGELOG.md

@@ -5,6 +5,8 @@ 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).
 
 ## Unreleased
+
+## 0.3.7 - 2023-04-08
 ### Fixed
 * Remove potential race condition caused by using `RLock` instead of `Lock`