Since Avid no longer supports this, you have two options:
If it isn't in your main account, check the . This is a repository for all historical versions of the software. You will need to be logged in to access these archives. System Requirements for 12.8.3 pro tools 128 3 mac download upd
This version addressed several UI and workflow bugs common in earlier 12.x builds: Since Avid no longer supports this, you have