The sched_ext code for extensible scheduler behavior by allowing scheduling policies to be implemented as BPF programs has been merged. Sched_ext was planning to merge it for Linux 6.11 but that didn't end up happening . Earlier in the week necessary scheduler changes were made and that paved the way for sched_ext being merged today.
Sched_ext has seen much interest and usage already within patched kernels for its long out-of-tree state. Sched_ext can allow for some quite innovative scheduling scenarios from gaming to other scenarios .
With much delight, a few minutes ago sched_ext was merged . The committed documentation provides more insight for those interested in the sched_ext prospects.