Linux 6.15-rc3 Released With GCC 15 Build Fixes, Intel Bartlett Lake & Zen 5 Check

Written by Michael Larabel in Linux Kernel on 20 April 2025 at 05:05 PM EDT. 4 Comments

Easter doesn't get in the way of Linus Torvalds' weekly kernel release regiment: Linux 6.15-rc3 is now available for testing the latest kernel fixes ahead of the stable Linux 6.15 kernel release coming around the end of May.

Merged this week for Linux 6.15-rc3 were better AMD Zen 5 CPU microcode protections with the SHA checking extended to those newest AMD processors, the Intel Bartlett Lake ID being added to open the door on future patches depending upon it, thermal control support for more Dell and Alienware systems, and optimism around the future of the Apple HFS/HFS+ file-system drivers. Plus various other minor bug/regression fixes throughout the massive kernel codebase.

👁 Linux 6.15-rc3

Linus Torvalds wrote of Linux 6.15-rc3 in today's release announcement:

"There's absolutely nothing of huge note here as far as I can tell. Just a fair number of small fixes all over the place - the biggest changes are to fix some ublk driver issues, and the related selftests for same. The rest is generally one- or few-lines.

So everything looks fine, and while the merge window was fairly big, that doesn't seem to have resulted in any particular pain. At least so far. Knock wood.

So a happy Easter Sunday to everybody (or a regular Sunday in case you don't care, and don't do the "eat odd traditional Finnish foods" like we do here in our family)."

There are many exciting features and changes with Linux 6.15 that will be debuting as stable in just about one month's time.