If you are coming from 0.10.1.5, there have been many more releases that you have missed as we tested 0.11. See all the 0.11+ releases below for those changes.
API
Search/GetUniqueKey/TypeFromUniqueKey in ID classes for facilitating saving entity identities.
Fixes
Fix Chinese text in npc chat
Fix logging error preventing some multiplayer
Fix download all issue getting stuck in download UI
Fix ModConfig ReloadRequired null handling
Fix mod load cancelling
Fix an issue with mod dependency mod building
QOL
Downgrade icon now red instead of green for clarity
Download with dependencies now works recursively
Patreon Thanks
Thanks so much to our Golem level Patrons.
Contributor Thanks
Thanks @orian34 for updating French localization
How to Install or Update
Download only the zip that corresponds to your operating system. Unzip the downloaded zip file and then run the installer from the unzipped folder. Now launch Terraria as you normally do. Read the README.txt if the installer doesn't work.