Yes, these algorithms are free for existing H90 owners. You must first update to the latest version of H90 Control (1.9.13) and then update to firmware (1.11.4) from within the app.
Actually, the update of the H90 to the latest software doesn’t work. Although I am connected via USB to my MAC, it always says, when I click on the update symbol on H90 control app, “Update is only available via USB from Mac or Win”.
It must be a bug..
Updates can only be conducted connecting a USB cable directly to the computer. Do not connect to any USB hubs. Some 3rd party cables are problematic. Best to use the cable Eventide provided. If you continue to have issues please reach out to support@eventideaudio.com and they can help troubleshoot.