Linux News Digest (Sept 21, 2026): Linux 7.3-rc4 Released with LLM Bugfixes, Severe CISA Deadlines, and a Critical Btrfs Rollback
If you missed the weekend drama because you were busy grinding old-school games or watching anime in your dark room, don't worry. I’ve compiled the absolute juiciest IT and open-source updates from the past 24 hours. Let's look at how things are breaking down under the hood. 1. Linus Torvalds Releases Linux Kernel 7.3-rc4: Caught by LLMs? A few hours ago, Linus Torvalds officially pushed out Linux 7.3-rc4 , and the changelog is unusually large for this stage of the development cycle. While driver updates still occupy about a third of the patch, Torvalds noted an interesting surge in filesystem activity, particularly around SMB and NTFS. But here is the real kicker for fellow tech cynics: a huge portion of the fixes merged into 7.3-rc4 are minor error-path cleanups caught by various Large Language Models (LLMs) . Yes, developers are now aggressively pointing AI tools at the kernel source code to find hidden bugs. Torvalds admitted that while these automated AI-found patches...