Version 2.42:
- Possibility to specify "On mail receive" deletion mode in account preferences.

Version 2.43:
- Return receipt support added: "Return receipt" checkbox added into new message composition window; when message with "Return receipt" request is received a confirmation is show to the user asking if he wants to send return receipt.
- "Print" button on toolbar

Версия 2.44:
- Pressing "Enter" key in message list window now has the same effect as mouse double-click (mark read/unread, download partially downloaded message, open draft message).
- Fixed small error in message parsing.

Version 2.45:
- Added possibility to export/import folder contents into Thunderbird-compatible format.
- Fixed bug: versions 2.43-2.44 had an error - attachments were not sent.

Version 2.46:
- "New" button now has a drop-down with a list of recent contacts
- Fixed: new message composition window wasn't working under FF 3.x
- Fixed: preferences window wasn't displayed when called from "Addons" window.
- Fixed: export of SM preferences wasn't working.

Version 2.47:
- Fonts drop-down in new message composition window now contains all available system fonts.
- "Forward" button now has a drop-down with a list of recent contacts.