Linux 6.4 Released With Early Apple M2 Code, More WiFi 7, AMD Guided Autonomous Mode

Written by Michael Larabel in Linux Kernel on 25 June 2023 at 07:38 PM EDT. 16 Comments
As expected Linux 6.4 is out today as stable as an on-time release following a relatively quiet cycle the past two months.

While the RC period of Linux 6.4 was relatively quiet and uneventful, that's not to say there isn't anything good with Linux 6.4... But in fact there's a lot from beginning to upstream various Apple M2 support code in different drivers, AMD Guided Autonomous Mode added to their P-State driver, and a lot of other new hardware work. See the Linux 6.4 feature list for a look at the many new features and improvements found with this now-stable kernel.

Linux 6.4 sources are now available for those rolling their own kernel builds.

Linux 6.4 released

With Linux 6.4 released, it's onward to the Linux 6.5 merge window opening. There is a lot coming for Linux 6.5 to make for a nice end-of-summer kernel release.

I have several more articles coming up in the days ahead with benchmarks featuring Linux 6.4 kernel usage while quickly attention will turn to benchmarking Linux 6.5 Git in looking for any performance regressions or other changes such as from the scheduler enhancements and more.

Update: Linus Torvalds has now posted his official release announcement, adding "Hmm. Final week of 6.4 is done, and we've mainly got some netfilter fixes, some mm reverts, and a few tracing updates. There's random small changes elsewhere: the usual architecture noise, a number of selftest updates, some filesystem fixes (btrfs, ksmb), etc."
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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