releases and support

What holds, and until when

Every release, the phase it is in, and the date its fixes stop. Dates already reached are facts; everything after the next release is a plan, and this page says which is which.

As of 15 August 2026

Dates up to the next release are committed. Everything after it is an estimate and moves — it is on this page so you can plan against it, not so you can hold us to it.

Running it

Three figures, so nobody has to read the answer out of a table of ten dates.

14.3

run this one

In active support until October 2027, then security fixes until April 2029.

20 months

until 13.4 leaves security

Long enough to plan an upgrade, short enough to start the plan now.

2 of 5

releases still getting security fixes

11.5 and 10.4 get nothing, including security. Extended support is a separate arrangement.

The phases

Four phases, and each is a word, a glyph and a colour together. The legend stands above the table rather than under it, because a reader meets the marks in the table and needs them explained first.

active

Everything: features, fixes and security. The one to be on.

priority fixes

No new features. Anything that stops work, and every security fix.

security only

Security fixes and nothing else. Plan the upgrade from here.

ended

Nothing, including security. An install on this is an install at risk.

Every release

The row in support carries a mark. Two of these get nothing at all, security included. An installation on one of them is an installation at risk, and to say so is the point of the table.

Release	Phase	Released	Active until	Security until
14.3	active	Apr 2026	Oct 2027	Apr 2029
13.4	priority fixes	Oct 2024	Apr 2026	Oct 2027
12.4	security only	Apr 2023	Oct 2024	Apr 2026
11.5	ended	Oct 2021	Apr 2023	Oct 2024
10.4	ended	Apr 2020	Oct 2021	Apr 2023

Requirements

This sets the upgrade window as much as the dates do. An install that cannot move its PHP cannot move its release either. Answers are words rather than ticks, so a cell means something on its own.

Release	PHP 8.1	PHP 8.2	PHP 8.3	PHP 8.4
14.3	no	no	tested	tested
13.4	no	tested	tested	tested
12.4	tested	tested	tested	no
11.5	tested	no	no	no

In progress

Themes and a state, and deliberately no dates. A date on something unbuilt is a promise this page cannot keep, and one broken promise costs more than the whole page is worth. What is not planned is here too, because that is also an answer.

in development

Answers across two releases at once

A question about what changed between 12.4 and 14.3 currently takes two questions and two answers. The work is one answer that says which half came from where.

being decided

A site package read for its own conventions

If a project’s own names belong in the index beside the core’s. It answers a real question and it doubles the surface that can be wrong. So it has not started.

not planned

Writing anything back to an installation

Listed here because the question comes often. Everything this touches stays untouched by design, and a tool that edits is a different tool with a different risk.