As well as support for macOS 10.13.2 and the iMac Pro, Avid has taken this opportunity to fix a raft of bugs in the Pro Tools 12.8.3 release. Here is the complete bug fix list...

UI Errors and Performance

• Fixed several issues with sluggish scrolling in the Edit Window

• It is no longer impossible to put Pro Tools windows into full-screen mode on macOS

• Fixed an issue that caused the System Preferences window to appear blank in some  cases when switching to System Preferences from Pro Tools

• Improved performance of rapid zoom level changes using the "r" and "t" command focus shortcuts

• Improved smoothness of continuous timeline scrolling and visible counters during playback 

• Improved the speed of showing and hiding tracks

• Fixed an issue that could cause the cursor icon to reflect the wrong edit tool in some cases

• Fixed an issue that could cause the Edit window to turn white

• Fixed an issue that allowed Tracks to be dragged between playlists of a track in Playlists view

• The correct multi-mono linking controls are now displayed in multi-mono plug-in window headers when such a plug-in is instantiated following a mono to stereo format converting plug-in

• Fixed a UI issue that occurred in the Channel Strip plug-in when collapsing or expanding any of its processing tabs

• Fixed a case where the Delay Compensation indicator in the edit window failed to update after turning off Delay Compensation in the options menu

Video

• Corrected the video sync offset for all non 29.97 based frame rates when using video hardware

• The video window no longer stays on top when toggling between applications on Mac OS

• Fixed a window ordering inconsistency when placing other floating windows on top of the video window on Mac OS

• Sending the wrong reference rate to video hardware will no longer put the video engine into a bad state

• The "Play Start Latency" Preference is now saved with the system, instead of the session

• Importing two videos that are copies of each other will now play

• Fixed an issue where MXF's generated from 3rd parties would display a black video window and no thumbnails

• Existing files are now shown in the Bounce to Disk destination folder on Windows OS's

Automation

• Fixed an issue that caused steep pan automation to play back incorrectly on tick-based tracks 

• Fixed an issue that caused automation to be recorded incorrectly on VCAs that were controlled by other VCAs

• Fixed a crash that could occur while writing VCA automation in large sessions

• Fixed an issue that could cause switching auto-height automation modes for 7.1.2 and Atmos Object panning to fail to add height to the signal

Workspace and Relinking

• Tags input predictive search and typing to add Tags to audio files is no longer broken

• Fixed some cases when upon session open, Pro Tools could link to the wrong file audio file based only on its name and path

• Fixed an issue with manual relinking where files with duplicate names but differing metadata could appear identically in the "Select Files to Relink" pane of the Relink dialog

• Improved launch time for Pro Tools when the workspace database file is extremely large

MIDI

• Fixed an issue where cutting or deleting a MIDI clip in clips or blocks view may leave notes behind

• SysEx events are no longer missing from the MIDI Event List

• Fixed an issue where notes in MIDI clips created using the Separate on Grid command may not copy and paste, duplicate, or repeat correctly when edited

• Using the "=" key on the numeric keypad for shortcuts to open the MIDI Editor, Score Editor, and MIDI Event list no longer fails 

Plug-ins and AudioSuite

• AudioSuite processing of clips no longer unexpectedly changes the clip color and mute status

• Fixed an issue where a "No Audio was Selected" error may occur unexpectedly when clicking in the timeline while previewing AudioSuite changes

• The Gain and Normalize AudioSuite plug-in windows now support plug-in settings presets

• Fixed an issue where the Time Adjuster plug-in did not correctly delay compensate for its offset value

Miscellaneous

• Fixed an issue where the Quantize to Grid command did not apply on the first execution of the command

• Fixed an issue in sessions with more than 26 groups that could cause groups to lose their color if tracks were deleted 

• Low Latency Monitoring no longer fails to work on surround format inputs 

• Fixed an issue where exporting to Interplay and setting the Media Destination to Same as Source could export files to the incorrect workspace 

• Fixed a crash that was frequently submitted to the crash log server that could occur when closing sessions 

• Fixed a crash when expanding matched Field Recorder Channels to new tracks when the Field Recorder Guide Track has a send with Follow Main Pan turned on 

• Fixed a crash that could occur when auditioning a playlist in playlist view if it contained a multi-channel clip made up of combined mono clips of different lengths 

• Fixed a crash that could occur after importing multiple clip groups

• Silent installation of Pro Tools on macOS no longer fails to generate all directories and files needed