>as the project matures

How can it be mature if it can't even boot on newer MacBooks. The slowness does not seem to be due to running out of impactful work that needs to be done.

The new leadership team blogged last year that their priority would be on upstreaming their existing work.

> Our priority is kernel upstreaming. Our downstream Linux tree contains over 1000 patches required for Apple Silicon that are not yet in upstream Linux. The upstream kernel moves fast, requiring us to constantly rebase our changes on top of upstream while battling merge conflicts and regressions. Janne, Neal, and marcan have rebased our tree for years, but it is laborious with so many patches. Before adding more, we need to reduce our patch stack to remain sustainable long-term...

Where do the M3 and M4 fit in? Until upstreaming and CI progress, the core team cannot prioritize new hardware.

https://asahilinux.org/2025/02/passing-the-torch/

I think the majority of that upstreaming work (that isn't on hold until the kernal is ready for the Rust graphics driver to land) has happened and additional features like DP alt mode for USB C have been demoed.

The next update from the team should land on their blog after 6.19 ships