tdesktop

• Fabulous new material-style design and animations.
• Support for custom themes! Check out some themes here: @TelegramThemes.
• Convenient tools for building your own themes coming soon.
• Delete messages for everyone. When you delete your messages in groups and one-on-one chats, you can now choose to delete them for everyone in the chat, not just yourself. This works only for recently sent messages (same as editing).
• Pin important chats to the top of the list so that you never miss a new message (right click on a chat, then choose ‘Pin to top’).
• Groups in common. A new option in your contacts' profiles that shows a list of all groups you share with that person.

• New audio player design

Windows and Linux:

• Quick reply from notifications
• Hide all notifications button added
• Change notifications location and maximum count

Windows 10:

• Respecting quiet hours for the notifications

Linux:

• You can enable native notifications in Settings

• Fix of settings saving
• Fix of OpenSSL in Linux build
• Fix entities moving when replacing emoji

• Fixed updater erasing for OS X
• Fixed build for linux (dynamic linking of xcb)

• New cute design for the Settings page
• Bug fixes and other minor improvements

Various bugfixes:

• Minimal height of the message text fixed to prevent bubble collapsing.
• FileDialog filter is (*) instead of (*.*) for Linux and macOS.
• Explicitly setting text color in Settings user name painting.

• Fixed photo viewer to handle screen resolution change correctly.
• Fixed forwarding photos via drag-n-drop.
• Various design improvements and other bug fixes.

• Introducing Drafts: Seamless syncing for unsent messages on all your devices. Drafts are now visible in your chats list.
• Completely redesigned group and user profiles.
• Unread messages counter on the ‘Scroll to bottom’ button.

• Edit your messages everywhere within 2 days after posting (press the up arrow button to edit your last message)
• Mention people in groups by typing @ and selecting them from the list — even if they don't have a username

• Bug fixes and other minor improvements

• Alpha versions instead of dev
• Bug fixes and other minor improvements

• Bug fixes and other minor improvements

• Bug fixes and other minor improvements

• Select and copy text in photo / video captions and web page previews
• Media player shortcuts are enabled only when player is opened

• Bug fixes and other minor improvements

• Introducing Bot API 2.0, the biggest update to our bot platform since June 2015
• Bots can now update existing messages on the fly as you interact with them
• New Inline keyboards with callback, ‘open URL’ or ‘switch to inline mode’ buttons help create seamless interfaces
• Inline bots can now send all attachments supported by Telegram (videos, music, stickers, locations, etc.)