Unsend Messages: retract any messages within 48 hours of sending them. Check out the Telegram Blog for more info.
Stickers suggestions by emoji.
Search for messages in specific chats.
Edit the text of your messages after sending them. This works across all Telegram chats, including groups and one-on-one conversations. Select a message and click 'Edit' or just press the up arrow button to edit your last message.
Pinned chats. Check out the Telegram Blog for more info.
Background notifications in Chrome and Firefox (can be disabled in Settings)
0.5.5
Introducing Drafts: Seamless syncing for unsent messages on all your devices. Drafts are now visible in your chats list.
Mention people in groups by typing @ and selecting them from the list — even if they don't have a username.
Share links to specific posts in channels via quick forwarding menu (click on the date in a message to try this out).
0.5.4
Introducing Bot API 2.0, the biggest update to our bot platform since June 2015.
New inline keyboards with callback, 'open URL' or 'switch to inline mode' buttons help create seamless interfaces.
Bots can now update existing messages on the fly as you interact with them.
Prepare for the rise of location-based bots: all bots can now ask users to share their location.
Inline bots can now send all attachments supported in Telegram (videos, music, stickers, files, etc.).
Try out these sample bots to see what's coming your way soon: @music, @sticker, @youtube, @foursquare
New quick forwarding in channels (click on the date in a message to try this out).
Improved performance.
0.5.3
Inline bots: A new way to add bot content to any chat. Type a bot's username and your query in the text field to get instant results and send them to your chat partner. Try typing @gif dog in your next chat. Sample bots: @gif, @wiki, @bing, @vid, @bold.
Improved performance in Safari on OS X El Capitan.
Added formatting for fixed-width code, surround text with `single backticks` for inline text and ```triple backticks``` for blocks of pre-formatted text.
0.4.7
New bot API, free for everyone. If you're an engineer, create your own bots for games, services or integrations.
Optimization for screens with smaller Y-resolutions.
Supported Spotify URL embeds.
Mentions of the current user in group chats are now highlighted.
0.4.1
Reply to specific messages in groups.
Mention @usernames in groups to notify multiple users.
Revised notifications in groups: mentioned users and people you reply to will be notified (private chat notification settings apply in this case instead of group settings). Check out Telegram Blog for more info.
Setting to disable message preview
0.4.0
Full stickers support
Multisearch box: instantly find chats, usernames and messages
Emoji autocomplete: e.g., type :kiss in the message field to see the list. Full cheat sheet »
Added 'typing' notification in chats list
Online members counter in group headers
0.3.9
[Desktop] Material design completed
0.3.8
Telegram.me links open right in Telegram Web when authorized
@username mentions in messages are clickable and open a conversation with the user
0.3.7
[Desktop] New material design for modal windows
[Desktop] Forward messages to multiple recipients
0.3.6
New viewer for photos, videos, documents.
[FirefoxOS] Improved media downloads.
0.3.5
Added embedded Soundcloud tracks and playlists.
Added global user search to contacts list.
Added switch to mobile version on window resize.
Migrate to HTTPS notification
Bugfixes.
0.3.4
Added embedded Facebook posts and Vimeo videos.
Improved IE10+ support: downloading files and style fixes.
Added unsupported media playback warning.
Bugfixes.
0.3.3
Added Native Client module: dramatically improved encryption speed; Download and upload speed is now as high as in native applications.