Linux 7.0-rc6 Released as Fixes Keep Pouring In at Unusually High Rate
Linux 7.0-rc6 Released as Fixes Keep Pouring In at Unusually High Rate
- 60% of MD5 Password Hashes Can Be Cracked in Under an Hour with a Single GPU
- Dirty Frag: Root Access on Every Major Linux Distribution — No Patch, No Warning
- Ubuntu 26.04 LTS (Resolute Raccoon): The Most Ambitious Ubuntu LTS in a Decade
- Proton Mail: Data Transferred to FBI Again!
- How Close Are Quantum Computers to Breaking RSA-2048?
- How to Prevent Ransomware Infection Risks?
- What is the best alternative to Microsoft Office?
Linux 7.0-rc6 Released as Fixes Keep Pouring In at Unusually High Rate
Linus Torvalds calls the calm of rc5 “a mirage” as the sixth release candidate arrives with more patches than typical for this stage — raising questions about whether the final release will land on schedule in mid-April.
Linus Torvalds tagged the sixth release candidate of the Linux 7.0 kernel on Sunday, maintaining the project’s weekly cadence but sounding a note of caution: the number of fixes landing at this stage of the cycle is running well above historical norms, and the temporary lull seen in rc5 has not held.
A Cycle That Won’t Calm Down
From the beginning, Linux 7.0 has been a heavier-than-average development cycle. The major version number jump — from 6.19 to 7.0 — carries no architectural significance; Torvalds made the leap simply because he was, in his own words, “being confused by large numbers” and nearly out of fingers and toes to count on. But whatever the cause, the new major number has coincided with a sustained surge in contributor activity across all release candidates.
The rc4 candidate in mid-March arrived notably larger than expected, driven in part by a late-week networking subsystem pull and a Friday wave of pending patches. At the time, Torvalds speculated openly that developer excitement around a new major version number — a psychological “hey, new major number” effect — might be fueling unusually high participation. By rc5, things appeared to settle, offering a brief respite. That calm has now evaporated.
It turns out that rc5 finally starting to calm things down this release cycle was a mirage — with rc6 we’re back to many more fixes than are normal for this time in the release.
— Linus Torvalds, Linux Kernel Mailing List, March 29, 2026
What Changed in rc6
The bulk of changes in this candidate are fixes rather than new features. Prominent among them is a large batch of EXT4 file system corrections, continuing a pattern of file system work that has been notable throughout this entire development cycle. Also landing were fixes targeted at x86 virtualization — specifically Intel TDX (Trust Domain Extensions) and AMD SEV-SNP (Secure Encrypted Virtualization with Secure Nested Paging) virtual machine environments — addressing reliability and correctness issues in confidential computing scenarios.
Audio hardware received significant attention as well, with numerous quirk fixes and workarounds landing for laptop audio configurations across a wide range of hardware vendors. This kind of audio fix is a routine part of kernel development but rarely arrives in such volume at the rc6 stage. Outside of fixes, a smaller number of new device ID additions appeared for x86 platform drivers, primarily covering newer Intel and AMD laptop platforms.
Release Timeline: On Track, but Uncertain
Based on historical patterns, Linux 7.0 was always expected to ship in either the second or third week of April — April 12 if Torvalds opts for seven release candidates, or April 19 if an eighth is deemed necessary. The consistently elevated patch volume through rc6 makes the latter scenario more plausible, according to community estimates and prediction trackers watching the cycle’s historical norms.
Notable Features Heading into the Final Stretch
While rc6 is primarily about stabilization, it’s worth recalling what Linux 7.0 brings to the table when it ships. AccECN — Accurate Explicit Congestion Notification — is enabled by default for all TCP connections, making Linux 7.0 the first kernel to ship with this feature active out of the box. This has meaningful implications for data center networking, where congestion-aware hardware can now take full advantage of the kernel’s signaling. Rust support, previously labeled experimental, is now a fully stable component of the kernel tree, reflecting years of incremental integration work. Hardware support for Intel Nova Lake and AMD Zen 6 platforms has also been added, along with the long-awaited retirement of the 28-year-old Intel 440BX chipset.
What Comes Next
rc7 is expected on or around April 5. If that candidate shows a meaningful reduction in patch volume — a genuine settling, rather than another mirage — Torvalds will likely tag Linux 7.0 stable on April 12. Should the volume remain elevated, an rc8 would follow, pushing the final release to April 19. Either date remains within the normal window for a Linux kernel release cycle, and Torvalds has given no indication that a more dramatic extension is under consideration. The open question is simply whether the cycle’s persistent busyness reflects an unusual but manageable burst of productivity, or something that warrants more caution before calling the kernel ready.
