Shopify's new Events system can send the change and the data your app needs in one delivery. It's a significant alternative to classic webhooks, but not a forced shutdown or universal replacement yet.
Shopify's App Pricing migration is now clearer: directly matching subscriptions can move through plan setup, while usage-based and price-mismatched subscriptions stay on the Billing API until a separate Migration API arrives.
The October Shopify API is now production-stable. Apps adopting it must audit financial mutations, removed GraphQL fields, customer-segment filters and discount rollout schedules rather than relying on the earlier release-candidate checklist.
Shopify is turning off its old cross-merchant catalog REST API on November 2. The replacement is a UCP-compatible MCP server, not a renamed URL: agents must remap tools, payloads and saved-catalog identifiers.
The migration risk is subtle: nothing breaks immediately, yet ERP, marketplace, POS and supplier integrations can become incomplete as soon as merchants start attaching multiple UPC, EAN, GTIN, ISBN or ASIN identifiers to one variant.
The non-Plus checkout migration is now an active compatibility boundary rather than an approaching deadline. Orders can continue while old post-purchase scripts, pixels or widgets stop working, making end-to-end conversion and app-behavior checks important after the cutover.
Polaris Web Components 2.0 reaches stable CDN channels, with explicit opt-in, React Router and TypeScript integration changes, and migration checks for apps that still use Polaris React.
With no planned installation banner, apps should identify affected merchants and handle the migration proactively; Shopify's alternative theme app embeds still require activation on the published theme.
Agent checkout builders using UCP 2026-08-25 can now negotiate consent options, propagate customer choices and handle missing-data warnings instead of hardcoding merchant privacy defaults.
Hydrogen 2026-10 is generally available as a JavaScript commerce library with React Router and Next.js starters and examples for other frameworks. Existing Hydrogen storefronts still work; migration is optional.
A new public MCP endpoint lets agents search without an API key and complete shopper-authorised purchases. It is separate from the Global Catalog REST API retirement and earlier browser-only WebMCP checkout; webhooks are not available at launch.
Canvas moves AI store building into production theme code, but the official requirements make the maintenance boundary clearer: entering Canvas can cut off normal theme downloads and upstream theme updates.
Theme developers using Shopify CLI 3.83.x and older against password-protected storefronts are now past the documented cutoff. Shopify requires 3.84.0 or later for these flows; the live changelog's September 23 date supersedes the earlier October 1 deadline in this dossier.
The useful shift is not another CLI convenience. A coding agent can now create a Shopify dev environment, populate it with existing API and bulk-operation tooling, test against it and tear it down without a person opening the Dev Dashboard.
The distribution shift matters beyond another sales-channel integration: product discovery, checkout, attribution and analytics can now happen off the merchant’s own storefront, and some familiar client-side pixels and checkout customizations do not travel with the order.
For deals and store transfers from August 10, Shopify partners can earn both subscription revenue share and a slice of merchant GMV, while the earning window becomes four years instead of perpetual.
Formbricks 6.1 changes single-use-link compatibility and survey permissions; October 27 security backports now address Next.js server actions, email invites and link-survey access.
Stalwart 1.0 ships stable mail storage, new search and performance improvements; existing v0.16 installations need a migration tool, and clustered setups need Redis.
A hard shutdown date makes this more than a hosting refresh: unmigrated Codeberg Pages sites will go offline, and the replacement changes deployment and URL behaviour.