ST-2026-025 · Runtimes & developer platforms
Heroku deprecates Heroku-22 and blocks builds from 1 May 2027
Heroku deprecated its Ubuntu 22.04-based Heroku-22 stack on 20 May 2026, schedules end of life for 30 April 2027 and will block builds from 1 May 2027 while existing applications may continue running without stack security updates.
Previous state
Heroku-22 was a supported stack for building and running applications on an Ubuntu 22.04-based platform image.
Current state
The stack is deprecated, then loses support and security updates at end of life; builds are blocked the following day although non-build functionality and existing app execution continue.
Affected users
Who needs to care
Heroku applications whose stack is set to heroku-22, including applications that still build successfully during the deprecation window.
Required response
What to do
List all heroku-22 applications, move each to a newer supported stack, rebuild dependencies and native extensions, run release and application tests, and deploy before builds are blocked.
Evidence boundary
What the source does not prove
Heroku does not say existing apps stop running at end of life. The enforced boundary is build prohibition from 1 May 2027; continued runtime operation is at customer risk because the retired stack no longer receives security updates.
Lifecycle history
Dated event sequence
- Stack deprecated
Heroku marked Heroku-22 deprecated and advised migration to a newer stack.
- End of life
Heroku-22 support and underlying stack security updates end.
- Builds blocked
Heroku stops allowing builds for Heroku-22 apps while existing apps and other non-build functionality can continue.
Evidence ledger
First-party sources
- 01Heroku Dev Center Changelog — Heroku-22 stack is now deprecated
Official stack deprecation and enforcement notice · 2026-05-20
Open official source ↗