Linux 6.15-rc1 Released With New Performance Optimizations, Updated Zstd & New Hardware

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TheLinux 6.15merge window has been capped off with the Linux 6.15-rc1 test kernel having been just released.Linus Torvalds justannouncedthe 6.15-rc1 kernel. He commented:"It's been two weeks, and the merge window is now over.As expected, this was one of the bigger merge windows, almost certainly just because we had some pent-up development due to the previous releases being impacted by the holiday season.That said, while it's bigger than normal, it's not some kind of record-breaking thing: we've had bigger releases, although not many. The really big releases tend to be due to some long-running major development being finally merged after many years, and this is not that: this is just the "regular" kind of big.It's big in both number of commits and in lines changed. The stats look fairly normal, with - once again - another AMD GPU register header file drop adding a ton of lines and standing out. But while that is a big chunk in itself, it doesn't dominate the diff - there's a lot of ch…