A stale extension remains
One config can stay on 2025-07 while the rest of the app moves forward.
SHOPIFY · OCTOBER 1, 2026
Shopify says app updates are blocked after October 1 if any extension is still on API 2025-07 or earlier. If you discover that during an urgent release, the extension migration becomes the release blocker.
api_version = "2025-07"
[[extensions]]
type = "ui_extension"One extension API version can hold the entire app update.
WHAT THE DEADLINE CHANGES
One config can stay on 2025-07 while the rest of the app moves forward.
Shopify says the CLI blocks updates when any extension is more than one year old.
Moving beyond 2025-07 can require replacing legacy React extension UI with Polaris web components and retesting behavior.
FREE RELEASE-GATE CHECK
Paste one or more shopify.extension.toml files. Add related extension code if you want a rough migration-surface check too. Nothing is uploaded for analysis beyond the event metadata.
PLANNED $5.99 UPGRADE PACK
The pack is designed to turn the repo scan into a release plan: exactly which extensions are stale, what likely needs component/API migration, what to regression-test, and what must pass before the next app deploy.
SOURCE OF TRUTH