Maya 2024 ships with MtoA 5.3.0, which introduces Arnold 7.2.0.0 and is a major feature release bringing improvements to volume shading and viewport rendering, support for Apple Silicon, and a more flexible physical sky that allows for separate sky and sun lights.
MtoA 5.3.0 delivers compatibility with Bifrost for Maya 2.7.0.0 and MayaUSD 0.22.0.
In addition, the MtoA documentation is now available directly in the Maya online help, as well as in the Arnold online help.
See the Arnold for Maya release notes for the full list of recently added features and bug fixes.