Linus Torvalds released Linux 7.4-rc1 on November 1, 2026, closing a merge window that set a record by every measure the kernel community tracks: 19,671 commits, far ahead of the previous record of 16,267 set by Linux 7.3 just a few months earlier.
Torvalds marked the moment in his usual understated style, calling it "a BIG merge window" and noting he was "much happier with the flood of AI-triggered work going into the merge window than seeing it appear as fixes during rc." That sentence deserves a second read — the creator of the Linux kernel just said AI is making him happier about code quality.
AI is writing kernel patches now
The surge in commits is being attributed largely to AI-assisted patches. Developers are using large language models to identify bugs, write fixes, and generate driver improvements at a pace impossible to sustain manually. Torvalds appears to have accepted this shift — with a condition: AI-found work is welcome in the merge window, but should not arrive late as rc-phase fixes.
Hardware Busters notes that "AI-found fixes pile up" is now a real pattern, and Neowin reports speculation that developers want their AI-discovered features merged before the next Long Term Support release.
What actually changed
Beyond the raw commit count, the 7.4 merge window is substantively large across the usual categories — drivers, filesystems, architecture support, security fixes. The interesting new variable is the AI-sourced proportion, which has not been isolated or quantified by any source yet. Patches are submitted by humans regardless of how they were written, making the AI contribution hard to separate from normal contributor activity.
What comes next
If the rc cycle proceeds on its usual schedule — roughly seven to eight release candidates — Linux 7.4 final is expected around late December 2026. The next LTS release after that is likely to draw significant attention given how many contributors appear to be targeting it.
The bigger story is what this merge window signals: AI is not replacing kernel developers, but it is changing the throughput of what individual developers can contribute. Whether 19,671 commits means 19,671 high-quality improvements is something only the testing cycle will reveal.