Debian 13.6, Ubuntu 26.04 LTS, Rocky Linux 10.2, and AlmaLinux 10.2 all landed within weeks of each other in spring 2026. The distribution you install today fixes your patch schedule until at least 2031 — and with Ubuntu Pro, all the way to 2036.

Ubuntu 26.04 LTS ’Resolute Raccoon’, released in April 2026, drops X11 entirely, rewrites sudo in Rust, and raises the RAM floor to 6 GB. Here’s what fleet administrators should audit before leaving 24.04 Noble Numbat behind.

Debian’s 13th stable release landed on August 9, 2025, with 69,830 packages, kernel 6.12 LTS, and official RISC‑V support. It doesn’t make headlines — it runs your servers, clouds, and routers, and that’s exactly why you pick it.