v5.1.7.1
Official changelog:
- Fix recently searched hashtags in chats search.
- Fix non-Telegram-Stars-invoice bot buttons with star emoji.
- Fix search in archived chats in single-column layout.
- Improve chat previews for topics, Saved Messages and groups.
- Fix formatting shortcuts on Linux.
- Fix options for Telegram Stars buying in case of large amounts.

v5.1.5.1
- Updated icons
Official changelog:
- Improve design of search in chat.
- Show vCard information for shared contacts.
- Allow scheduling media in topic groups.
- Several bugs fixed including a couple of crashes.

v5.1.1.1
- Fixed bold font on some systems
- Updated icons
Official changelog:
- Send messages with effects.
- Move photo or video captions above the media.
- Long press on chat userpic to show quick preview.
- Fully close search in chat by "Cancel" click.
- Allow editing caption placement and spoiler in topics.
- Disable effects on forwarded messages and inline results.
- Jump to chat from preview only by Double-Click.
- Show author userpics in forwarded messages.
- Fix reply to last message by Ctrl+Up in topics.
- Ctrl+Click on Reply in menu to Reply in another chat.
- Allow Zero-Width-Space character in text rendering.
- Fix creating custom links in the message field.
- Fix jump to the topic with last unread message.
- Fix newline entering via Shift+Enter on Linux.
- Fix forum search open by Ctrl+F.

v4.16.7.1
Official changelog:
- Reimplement file open confirmations.
- Show custom emoji preview on long press.
- Fix resume chat bot button disappearance.
- Fix GIF files playback. (regression in 4.16.3.beta)
- Fix editing privacy for groups and channels invitations.
- Possible fix for the network unresponsiveness after sleep.
- Possible fix for wide range of memory allocator crashes on Linux.

v4.16.4.1
Official changelog:
- Show information about Fragment phone numbers and usernames.
- Fix jump to original story from a story repost.
- Fix old image display in viewer in some cases.
- Fix several crashes.
- Use IV by default for Telegraph and some Telegram links.
- Support IV links in bot web-apps.
- Improve media upload speed.
- Update FFmpeg to 6.1.1.

v4.16.0.1
- Updated registration date database
- Updated icons
- Translate "Registration date"
Official changelog:
- Instant View on Windows 10+ and macOS.
- Allow scheduling messages in topics.
- Telegram Business: Links to Chats.
- Telegram Business: Custom Intro.
- Telegram Business: Chatbots.
- Sharing Revenue with Channel Owners.

v4.15.6.1
- Remove uppercase from some buttons
Official changelog:
- Save the Instant View window geometry.
- Fix jump to anchors with accents in the Instant View.
- Fix possible crash in the ElasticScroll destructor.
- Fix a crash in Instant View article parsing.
- Disable system proxy on Linux to check if it fixes crashes.
- Fix crash with long messages on Linux.

v4.15.3.1
Official changelog:
- Instant View on Windows (with WebView2) and macOS.
- Allow scheduling messages in topics.
- Fix system proxy support on Linux.

v4.15.2.1
- Fixed several interface elements in business settings
Official changelog:
- Close the ongoing call window without hanging up the call.
- Fast scroll through chats list with Ctrl or Shift pressed.
- Several bugfixes.

v4.15.1.2
- Reduced message tooltip timeout
- Improved spoilers (once again)
- Fixed sticker pack author for newer ids
- Show increment when copying sticker pack author id
- Fixed add recommended folder button
- Updated icons
Official changelog:
- Telegram Business features.