Auto-Align Post is now available in multiple plug-in formats and integrations.
AudioSuite - supported in Pro Tools.
ARA2 Extension - Supported in Cubase, Nuendo, Studio One, Reaper.
* AudioSuite plug-in format takes the first channel of the side-chain track. While ARA supports multitrack reference. This might result in some differences between AudioSuite and VST3.
** ARA2 (Audio Random Access) isn't permanent, It gives Auto-Align Post access to the entire audio.
In Nuendo 12 you can use the 'Make Extension Permanent' option in order to commit Auto-Align Post's processing.