Version 1.2

Some new features implemented:

• Full support for emojis. An emoji chooser dialog is added, where emojis can be added either directly to a post, or as reactions to the post. Also, post reactions by other users are shown too. Emoji skin tones are supported too.
• Support for polls - poll display, voting in polls, ending polls. Creating a poll is not supported yet.
• Display quoted posts. When a post is quoted in another post, the quoted post will appear in a rectangle.
• Added settings window, where settings can be customized. New settings will be added in the future. For now, there are settings for image preview sizes and file download locations
• Added context menu options for teams and channels (editing channel properties, viewing user profile, Adding members to channels and teams)
• System's default directories are used for network cache, emojis and temporary downloads. The file download directory is configurable in settings.
• License information added
• Support for displaying group channels (they are different from team channels)
• Various bugfixes (scrolling, detecting links in posts, chats sorting, etc...)

Version 1.1

A lot of missing features are implemented, so that adding / removing channels is supported.
Also, a build for 64-bit windows is released as mattermost-qt-1.1.zip

• Improved image preview resizing - so that image's aspect ratio is preserved
• Fixed bugs, related to maximizing the application from the tray icon
• show only filename, without full path in attachment list and allow removing files from attachment list. Also, the attachment list is removed when the last file is removed
• use default file icon if no MIME info for the file is found, for incoming attachments
• Added separator in chat for messages from the current or previous day
• Added support for post editing and deleting. Allows you to edit / delete your own posts, and updates contents when someone modifies / deletes it's post
• Reworked login mechanism. After successful login, a token is generated from the server. This token will be saved and used for next logins, so that the password has not to be saved locally.
• Adding direct channels is now supported
• Joining public channels is supported too
• Almost all events for adding / leaving a channel / team are handled.
• Added context menu to posts, so that individual actions can be taken for a post - editing, deleting, copying. Also, multiple posts can be copied to the clipboard, with pretty text formatting. More context menu actions will be added in future releases
• Added context menu to channel lists. For non-direct channels it has 2 options: 'view channel details' and 'leave channel'. For direct channels it has the single option 'view user profile'. More context menu actions will be added in future releases
• Added context menu to team groups. It has 2 options - 'view team members' and 'view team public channels'. More context menu actions will be added in future releases
• Added context menu to the direct team group. It has the single option 'add direct channel'. More context menu actions will be added in future releases
• Added dialog window for displaying user profile information. It is called from a direct channel's context menu
• Added dialog window for displaying channel information. It is called from a non-direct channel's context menu
• Added windows for displaying a list of users or channels. They also have a search box for searching by user or by channel.

Version 1.0 (first release)

This is the first release, with complete basic features.

• Sending and receiving messages is functional.
• Sending and receiving files is functional too.
• The server is notified when a channel is being viewed and channel view notifications from server are handled. This means that the notifications will work properly when using Mattermost on multiple devices.
• If a reconnect occurs, the chat history is synchronized with the server, so that no messages are lost.
• Cache is used for faster image loading.