Shopify Merchant Deadline Tracker

Shopify ships changes as a stream — never as a calendar. This page consolidates every change with a date attached that costs merchants money or breaks stores, with the columns Shopify doesn't publish: whether you are affected, what happens if you do nothing, and when it's safe to ignore. Maintained by Electric Enjin; every row carries a last-verified date.

Invalid metafield queries start returning errors (GraphQL Admin API 2026-10)

Deadline: October 1, 2026 · Severity: high · API version: 2026-10

Who is affected: Stores with custom apps, private integrations, or headless builds that query metafields through the Admin GraphQL API.

60-second self-check: Ask whoever built your custom app or integration whether it queries metafields and which API version it targets. If everything on your store is off-the-shelf public apps, this is your app developers' problem, not yours.

What breaks if you ignore it: Once an integration moves to API version 2026-10, previously-silent invalid metafield queries throw errors — syncs, dashboards, or custom features that depend on them stop working.

Effort: 1–4 developer hours to audit and correct queries; zero if you have no custom integrations.

Our verdict: Act only if you have custom-built integrations. Off-the-shelf app users: no action — your vendors handle it.

Shopify's announcement

Last verified 2026-08-13

API version 2025-10 reaches end of support

Deadline: October 1, 2026 · Severity: medium · API version: 2025-10

Who is affected: Stores running custom apps or integrations pinned to Admin/Storefront API version 2025-10 (Shopify supports each quarterly version for 12 months).

60-second self-check: List your custom/private apps (Admin → Settings → Apps and sales channels → Develop apps) and ask each maintainer which API version it requests. Public App Store apps manage this themselves.

What breaks if you ignore it: Requests to a retired version are served by the oldest supported version instead — behavior can change silently, and anything relying on since-changed fields can break without an error email.

Effort: Typically 2–8 developer hours per custom app to bump the version and test.

Our verdict: Schedule the upgrade for September; do not wait for breakage — the failure mode is silent.

Shopify's announcement

Last verified 2026-08-13

API version 2026-01 reaches end of support

Deadline: January 1, 2027 · Severity: low · API version: 2026-01

Who is affected: Stores with custom apps pinned to API version 2026-01.

60-second self-check: Same check as the 2025-10 row — ask your app maintainers which version they target.

What breaks if you ignore it: Same silent-fallback behavior as every version sunset.

Effort: Typically 2–8 developer hours per custom app.

Our verdict: No action needed yet — calendar it for December 2026. We list it so you are not surprised.

Shopify's announcement

Last verified 2026-08-13

Every important Shopify update — last 6 months

Action-required items, breaking changes, and deprecations from Shopify's merchant and developer changelogs, newest first.