Version 3.66 and its iterations introduced several refinements to the modular rigging system:

For version 3.74 and later, separate "AI files" (approx. 400MB) can be installed via the addon preferences to enable the "Guess Markers" feature. 4. Workflow Summary

Automates bone placement, weight binding, and animation retargeting for humanoid and non-humanoid characters.

The "Remap" tool allows users to retarget animations from sources like Mixamo or motion capture files to an Auto-Rig Pro armature. 3. Installation & Setup