We just published a version 8.7.11.40908 Public Beta with the following enhancement:
Audio
changed: Aux In levels harmonized across MAIN OUTPUT, HEADPHONE OUTPUT and MONITOR OUTPUT
Rig Manager Compatibility
OS 8.7.11 requires at least Rig Manager 3.2.72 for Windows®/macOS® and Rig Manager 1.2.0 for iOS®.