changelog updated

Author: Webklex

CHANGELOG.md

@@ -7,9 +7,13 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 ## [UNRELEASED]
 ### Fixed
 - Error token length mismatch in `ImapProtocol::readResponse` #400
+- Attachment name parsing fixed #410 #421 (thanks @nuernbergerA)
+- Additional Attachment name fallback added to prevent missing attachments
+- Attachment id is now static (based on the raw part content) and now longer random
+- Always parse the attachment description if it is available
 
 ### Added
-- NaN
+- Attachment content hash added
 
 ### Breaking changes
 - NaN