OS
Canonical
Ubuntu 26.10, the interim (non-LTS) release, reaches end of life on July 1, 2027 — about nine months after its October 15, 2026 release. After that date the 26.10 series stops receiving security updates and package fixes, so systems and `ubuntu:26.10` container images pinned to it no longer get patched.
departs 1 Jul 2027
Quick answers
- Is it true that Ubuntu 26.10 "Stonking Stingray" reaches end of life on July 1, 2027?
- Yes. Canonical has officially announced it, effective 1 Jul 2027. Ubuntu ships two kinds of release: Long Term Support (LTS) versions supported for years, and interim releases supported for roughly nine months.
- When does it take effect?
- 1 Jul 2027. Verified against the vendor's own announcement.
- What should I use instead?
- Before July 1, 2027, move off Ubuntu 26.10.
What this means for you
Ubuntu ships two kinds of release: Long Term Support (LTS) versions supported for years, and interim releases supported for roughly nine months. Ubuntu 26.10 ("Stonking Stingray") is an interim release — it came out on October 15, 2026 and reaches end of life on July 1, 2027. Once an interim release is end of life, Canonical stops publishing security updates and package fixes for it, so anything still running 26.10 after that date keeps working but stops getting patched. This matters most to two groups: desktop and server users who installed the interim release to get newer packages, and anyone who pins the `ubuntu:26.10` base image in a Dockerfile, compose file, or CI config. An unsupported base OS is a quiet security dead end — nothing breaks on the date, but CVEs in the base system and its `apt` packages stop being fixed. It does not affect the 26.04 LTS release ("Resolute Raccoon"), which is supported into 2031 (and 2036 with Expanded Security Maintenance).
Where to go
Before July 1, 2027, move off Ubuntu 26.10. On installed systems, Canonical's supported upgrade path from an interim release is to the next interim release (27.04, when it ships in April 2027) rather than staying put — or, for a longer support window, a fresh install or migration onto the 26.04 LTS line. For containers, inventory your Dockerfiles, compose files, and CI configs for `FROM ubuntu:26.10` pins and move them to a supported tag: `ubuntu:26.04` (LTS, the usual choice for production base images) or a current interim tag if you deliberately track newer packages. Rebuild and test after changing the base, since package versions can shift between releases. If you need a predictable multi-year patch window, pin an LTS release rather than an interim one.
- Ubuntu 26.04 LTS ("Resolute Raccoon") — supported into 2031 (2036 with Expanded Security Maintenance); the right base for anything that needs a long patch window
- Ubuntu 27.04 — the next interim release (expected April 2027) for users who track newer packages on the ~9-month interim cadence
Ubuntu 26.10, codenamed “Stonking Stingray,” reaches end of life on July 1, 2027, per the endoflife.date Ubuntu table. It is an interim (non-LTS) release — Canonical published it on October 15, 2026, and interim releases get about nine months of support.
What end of life means
Once an interim release is end of life, Canonical stops shipping security updates and package fixes for it. A machine running 26.10 keeps booting and working, but the base OS and its apt packages no longer receive CVE patches — the same quiet security dead end as any pinned-but-unsupported base.
Who this affects
Two groups: people who installed the interim release on a desktop or server to get newer packages than the LTS line carries, and anyone who pins FROM ubuntu:26.10 (or a point-release tag under it) in a Dockerfile, compose file, or CI base image. The 26.04 LTS release (“Resolute Raccoon”) is on a completely different, multi-year schedule and is not affected — it is supported into 2031, and into 2036 with Expanded Security Maintenance.
What to do
Before July 1, 2027:
- Decide LTS vs interim. If you need a long, predictable patch window, move to 26.04 LTS. If you deliberately track the newer-package interim cadence, plan the hop to 27.04 (expected April 2027).
- For containers, inventory Dockerfiles, compose files, and CI configs for
ubuntu:26.10pins and bump them toubuntu:26.04or a current interim tag. - Rebuild and test after changing the base — package versions shift between releases, so verify your runtime dependencies still work.
This entry tracks the endoflife.date Ubuntu table; if the 26.10 end-of-life date changes, the entry will be updated with a changelog note.
Entry changelog
- — last reviewed.
- — Entry created from the endoflife.date Ubuntu table, which lists 26.10 ("Stonking Stingray", released 2026-10-15, non-LTS) with an end-of-life date of 2027-07-01 — the standard ~9-month support window for an Ubuntu interim release. Machine-detectable in a code repository via the `ubuntu:26.10` container base image tag, so an image detect fingerprint was added and validated against the public dataset.
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