Release 2.6.0

Author: GrahamCampbell

Diff for: CHANGELOG.md

@@ -5,6 +5,13 @@ 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).
 
+## 2.6.0 - 2023-08-03
+
+### Changed
+
+- Updated the mime type map to add some new entries, fix a couple of invalid entries, and remove an invalid entry
+- Fallback to `application/octet-stream` if we are unable to guess the content type for a multipart file upload
+
 ## 2.5.1 - 2023-08-03
 
 ### Fixed