I'll have to look into that. I was thinking of 10.
https://avidtech.my.salesforce-sites...Mac&popup=true
There is core audio functionality in the new hd driver.. So I am not sure what the new policy of Avid will be.
I am not yet investing or looking at a second Mac pro for use with pci-e hd accell cards.
I found this:
Avid Knowledge Base
HD Driver and Core Audio on Mac
Information on the HD Driver and AvidAudioServer application for Core Audio support on Mac
Last Updated : April 8, 2019
Products Affected : Pro Tools HD, Pro Tools Ultimate
Pro Tools 12.6.1 introduced support for HDX and HD Native with Core Audio on Mac (10.10 Yosemite, 10.11 El Capitan, and 10.12 Sierra).
Q) Where can the new HD Driver be downloaded?
A) The new HD Driver is only available in customer Avid Accounts and via the Avid Application Manager. There must be a valid Pro Tools HD plan in the customer account for the current HD Driver download to be available.
Q) Can the new HD Driver (Pro Tools HD 12.6.1 and higher) be used with previous Pro Tools HD releases?
A) Yes, but it will disable some normal Pro Tools functionality. With the advent of the new HDX/HD Native Core Audio driver, Pro Tools is now able to access HD hardware in 2 separate ways:
The traditional way, with DSP plugins and the HD mixer, but no interoperability with other Core Audio apps.
The new βAvid Audio Server" way, where Pro Tools treats the HD engine purely as an audio I/O; no DSP plugins, but yes to interoperability with other Core Audio apps.
You canβt choose which of these modes to operate in; older versions (12.6 and prior) will always use option 2, while newer versions (12.6.1 and higher) will always use option 1. This means that if you install the new HD Driver (12.6.1 and higher) over an earlier Pro Tools version you will ONLY be able to use the HD hardware for Audio only. You will not be able to use DSP plug-ins, nor will you be able to connect to a SYNC HD peripheral.
If you wish to uninstall the new HD Driver you can simply delete the AvidAudioServer.app file located in /Applications/Avid/AvidAudioServer/