Canonical is rebuilding the Ubuntu wiki from scratch due to security and quality issues. The old system will be shut down in 2026. Details are in our news report.
With Ubuntu 26.04 LTS, Totem and System Observer are being replaced by Showtime and Resources. Details here.
The first daily builds for Ubuntu 26.04 LTS, the new long-term supported version due in April 2026, are now available for download.
A pair of flaws, located within the OverlayFS module of the Linux Ubuntu kernel, are impacting a significant 40% of all Ubuntu users.

