• Updated Telegram API to layer 204.
• Added support for MSC4190.
• Enabled captions by default, as they are now supported by most clients.
  • Existing configs will still need to enable caption_in_message manually.
• Changed new room creation to hardcode room v11 to avoid v12 rooms being created before proper support for them can be added.
• Fixed bridging sticker messages with partial quote replies from Telegram.
• Fixed text in poll bridging.
• Disabled kicking unauthenticated users from portals.

• Dropped support for Python 3.9.
• Updated Telegram API to layer 183.
• Added support for authenticated media downloads.
• Added support for receiving reactions when using a bot account.
• Added option to limit file size by chat type.
• Fixed reply bridging breaking in some cases.

• Updated Telegram API to layer 169.
• Updated Docker image to Alpine 3.19.
• Fixed some potential cases where a portal room would be created for the relaybot even if ignore_unbridged_group_chat was enabled.
• Fixed member sync in groups with hidden members causing puppeted Matrix users to be kicked even if they're still in the group.

• Removed support for MSC2716 backfilling.
• Added add-contact and delete-contact commands.
• Updated Telegram API layer to 166.
  • Includes receiving view-once media, blockquotes, quote replies and other such things
• Fixed AuthKeyNotFound errors not being handled and causing users to get stuck in a non-logged-in state.

• Security: Updated Pillow to 10.0.1.
• Added support for double puppeting with arbitrary as_tokens. See docs for more info.
• Added support for sending webm and tgs files as stickers.
• Updated to Telegram API layer 161.
• Fixed cached usernames for Telegram users being cleared incorrectly, leading to mentions not being bridged as usernames.
• Fixed reaction bridging failing if the server running the bridge was rebooted less than 12 hours ago.

Added

• Added option to delete megolm sessions that were received before the automatic ratcheting options were introduced.
• Added config option to use IPv6 for Telegram connection (thanks to @exciler in #920).

Improved

• Dropped support for Python 3.8.
• Updated Docker image to Alpine 3.18.
• Added timeout for forward backfills to prevent it from getting stuck permanently.

Fixed

• Fixed bridge.filter.users config option not being read correctly.
• Fixed proxy support to use python-socks instead of pysocks.

Added

• Added fallback messages for calls and premium gifts.
• Added options to automatically ratchet/delete megolm sessions to minimize access to old messages.
• Added option to not set room name/avatar even in encrypted rooms.
• Implemented appservice pinging using MSC2659.
• Added option to disable or filter bridging direct chats (thanks to @Steffo99 in #892).
• Added options to specify different limits for forward and catchup backfilling depending on chat type.

Improved

• Improved handling logouts and certain connection errors.
• Changed reaction bridging to preserve timestamps.
• Disabled creating portals for DMs that don't have any messages when sync_direct_chats is enabled.

Fixed

• Fixed syncing mute status when portal is created through incoming message rather than in startup sync.
• Fixed bridge incorrectly trusting member list and kicking users when supergroup has member list hidden.
• Fixed sending messages after creating groups from Matrix using relaybot instead of puppet (thanks to @maltee1 in #902).

Added

• Added allow_contact_info config option to specify whether personal names and avatars for other users should be bridged.
  • The option is only safe to enable on single-user instances, using it anywhere else will cause ghost user profiles to flip back and forth between personal and default ones.
• Added config option to notify Matrix room if bridging an incoming message fails.

Improved

• Updated Docker image to Alpine 3.17.
• Updated to Telegram API layer 152.
• Improved handling users getting logged out.
• Removed support for creating accounts, as Telegram only allows requesting SMS login codes on the official mobile clients now.
• Replaced moviepy with calling ffmpeg directly for generating video thumbnails.

Fixed

• Fixed handling Telegram chat upgrades when backfilling is enabled.
• Fixed file transfers failing if transfering the thumbnail fails.
• Fixed bridging unnamed files with unrecognized mime types.
• Fixed enqueueing more backfill.
• Fixed timestamps not being saved in telegram_file table.
• Fixed issues with old events being replayed if the bridge was shut down uncleanly.

Added

• Added built-in custom emoji packs to allow reacting with any standard unicode emoji from Matrix (note that only premium users can use custom emojis).
• Added infinite backfill using MSC2716.
  • The new system includes a backwards compatibility mechanism which uses the old method of just sending events to the room. By default, MSC2716 is not enabled and the legacy method will be used.

Improved

• Redacting reactions on Matrix no longer removes the user's other reactions to the same message (premium users can have up to 3 reactions per message).
• Changes to default user permissions on Telegram are now bridged.
• Added database index to make reaction polling more efficient (thanks to @AndrewFerr in #862).

Fixed

• Fixed provisioning API not working with URL-encoded parameters.

Added

• Support for custom emojis in reactions.
  • Like other bridges with custom emoji reactions, they're bridged as mxc:// URIs, so client support is required to render them properly.

Improved

• The bridge will now poll for reactions to 20 most recent messages when receiving a read receipt. This works around Telegram's bad protocol that doesn't notify clients on reactions to other users' messages.
• The docker image now has an option to bypass the startup script by setting the MAUTRIX_DIRECT_STARTUP environment variable. Additionally, it will refuse to run as a non-root user if that variable is not set (and print an error message suggesting to either set the variable or use a custom command).
• Moved environment variable overrides for config fields to mautrix-python. The new system also allows loading JSON values to enable overriding maps like login_shared_secret_map.

Fixed

• ChatParticipantsForbidden is handled properly when syncing non-supergroup info.
• Fixed some bugs with file transfers when using SQLite.
• Fixed error when attempting to log in again after logging out.
• Fixed QR login not working.
• Fixed error syncing chats if bridging a message had previously been interrupted.