https://libreboot.org/news/schedule.html
I published this a while ago and so far have adhered to it; Libreboot 25.04 came out in April as planned.
However, I've been thinking further how to implement it. I'll think more about it and issue an update on Libreboot later but basically the plan is this:
Every release gets a branch. 25.04 has the branch "25.04_branch"
Any "revision" update releases get tagged in that branch too, and build and uploaded.
(1/2)