@Mark
The major/feature release versions must match but the maintenance version can be different.
e.g. Qu firmware V1.91 will work with Qu-Pad V1.95
So you would only need to update the Qu if you are running firmware older than V1.90 in order to use it with this app release.
It’s always best to run the latest firmware and app version if you can however. So as I write this, that would mean running V1.97 firmware on the mixer and this V1.95 release of the app.
Thanks,
Keith.