- internal improvements

- improved quote parsing in plain messages
- internal improvements

- added warning for suspicious messages
- added support for email signatures
- added filter for showing only encrypted messages
- improved detection and parsing of encrypted messages
- internal improvements and optimizations

- added support for rendering plain HTML messages
- added ability to import public keys received in email messages
- added message type icons to messages list
- added ability to send messages to recipients with invalid public keys
- added ability to manually import public keys on Contacts screen
- improved rendering of PGP/MIME messages
- various UI improvements
- internal improvements

- added brute-force protection for private key passphrase
- added user avatars to messages list
- added SSL pinning
- added "select thread" feature on messages folder screen
- fix for possible BCC recipient leak in password-protected messages
- improvements for message labels list in side menu
- improvements for message rendering
- fixed message labels ordering in side menu
- internal improvements and optimizations

- fix forwarding email with attached public key

- added swipe actions for inbox
- improved drafts error handling
- autodetect links in emails
- improved scrolling on compose screen
- internal improvements