- Don't play the slide-in animation while messages are being spammed. Useful while printing things for debugging (with Expression 2/Starfall for example)

- Added player mentions
- Removed old migration code

- Tweak Twitter whitelist entries (although it seems like requests to Twitter no longer work in Garry's Mod)
- Make embed HTML check more broad

- Tweak absence messages
- Fix wrong team color in absence messages

- Added server convar: custom_chat_enable_absence_messages (1 by default. On first spawn, show messages about when a player was last present on the server.)

- Whitelisted https://revolt.chat/
- Show a message when a friend joins the server
- Show a message with how much time has passed since the last time players joined the server

- Added Turkish translation (Thanks, NovaDiablox!)

- Call the "player_say" hook serverside

- Add two server console variables: custom_chat_allow_colors and custom_chat_max_lines

This one didn't actually apply the changes I wanted, I had to accept the new Workshop legal agreement thingamabob...