The Christmas period is approaching (it has already begun, in theory, in areas like the US), and the timing of many things is going to be affected. Like the rest of us, developers will slow down during this month of December, and there are also people who have commitments to fulfill, like Linus Torvalds who today launched Linux 6.7-rc4 a few hours in advance because he is traveling. As he says, it's already Sunday afternoon somewhere anyway.
The email that Torvalds sent is longer than usual for a fourth Release Candidate, and part of it was used to talk about the version of Linux that has not yet begun development. As he predicts, everything will be very calm in the development of Linux 6.7, but times will cause something to happen in 6.8. There are probably delays in its fusion window, which would motivate a development with more obstacles and probably with an octave RC. But we are moving things forward a lot.
Linux 6.7 could arrive on December 31
*Anyway*, right now that's still a few weeks away, and this is just the rc4 version. And things seem to be going well for now, with a fairly small rc4 – although that may also be because I'm not the only developer traveling to the conferences…
The attached shortlog gives the details, but the last week seems pretty normal, with the drivers dominating (drm and particularly the AMD GPU side showing up in the diffstat). But we have a little bit of everything, including tools, filesystems (bcachefs appears, but noise elsewhere too) and core networking. Some minor architecture fixes as well.
The stable version of Linux 6.7 could arrive on December 31. Ubuntu users interested in installing it when the time comes should do so on their own, for which we recommend using Mainline Kernels, a tool with a graphical interface that allows you to download and install "mainline" versions of the kernel. For those who have doubts, these types of kernels are the original ones, the ones developed by Torvalds and maintained by his team of collaborators, while what Ubuntu uses is a version that is also mainline at first, but that is later maintained by Canonical by applying the necessary patches. .
The Ubuntu operating system in general will remain on Linux 6.5 until April 2024, at which point it will most likely go up to 6.8. The latest LTS version is also the most recent stable, at the time of writing Linux 6.6.