cloudflare/workers-sdk @cloudflare/deploy-helpers@0.12.0

on GitHub

Minor Changes

• #15612 74bf083 Thanks @petebacondarwin! - Share Worker startup profiling with other Cloudflare developer tools

  Move the bundle analyser out of Wrangler so cf and deploy failure diagnostics can use the same Miniflare CPU profiler. The analyseBundle callback on DeployCallbacks is now optional and deprecated, and will be removed in a future release once all clients have been updated to stop passing this property.

• #15597 a83d7ac Thanks @skepticfx! - Support per-image build options for experimental Durable Object-managed Containers

  Set build_context and build_vars alongside dockerfile in a Container's named images entries. Context paths resolve relative to the Wrangler configuration file and default to the Dockerfile's directory. Build variables are passed as Docker build arguments. Entries using the same Dockerfile with different contexts or variables are built separately.

  {
    "containers": [
      {
        "class_name": "Sandbox",
        "scheduling_policy": "durable_object",
        "images": {
          "app": {
            "dockerfile": "./docker/Dockerfile",
            "build_context": ".",
            "build_vars": { "APP_ENV": "production" }
          }
        }
      }
    ]
  }

• #15638 fa79b26 Thanks @G4brym! - Support AI Search bindings in Worker Previews

  wrangler preview now accepts ai_search and ai_search_namespaces entries in the previews block and includes them in Preview deployment bindings. This lets Workers that use AI Search instance or namespace bindings attach existing resources to Preview deployments, including preview-specific instance or namespace names.

  These bindings are non-inheritable: declare them explicitly under previews. They attach to existing AI Search resources; preview does not provision new isolated instances or namespaces.

• #15256 16d1310 Thanks @theoephraim! - [private beta]: Add --secrets-file and --var flags to wrangler preview

  Like wrangler deploy and wrangler versions upload, wrangler preview now accepts a --secrets-file flag pointing to a JSON or .env format file, and --var KEY:VALUE pairs that are injected into the Preview deployment as plain text variables. CLI vars override same-named vars from the previews section of your config file, and secrets from the file take precedence over both:

  wrangler preview --secrets-file .env.preview --var API_URL:https://api.example.com

• #15453 ca71205 Thanks @G4brym! - Remove the gated Web Search binding and Wrangler command

  The unreleased search binding and its experimental command have been removed from Wrangler, Miniflare, and configuration APIs.

• #15597 a83d7ac Thanks @skepticfx! - Allow experimental Durable Object-managed Containers to link by name through exports

  Containers using scheduling_policy: "durable_object" can now specify name and link from exports.<Class>.container without repeating class_name. Deploy and version upload resolve that link for image preparation, Worker metadata, and Container application creation.

Patch Changes

• #15597 a83d7ac Thanks @skepticfx! - Configure application-wide logs for experimental Durable Object-managed Containers

  Set containers[].observability.enabled or containers[].observability.logs.enabled when using scheduling_policy: "durable_object". Normal deployments create missing applications and update explicitly configured log settings without a Container rollout. Omitted settings preserve the application configuration; root Worker observability is not inherited for this policy.

  Version uploads may initialize missing applications but preserve existing settings. Deploying or rolling back Worker versions also preserves existing application settings, and --containers-rollout=none skips their updates.

• #15631 c4a6279 Thanks @petebacondarwin! - Restore static asset upload concurrency after gateway errors

  Static asset uploads previously remained at concurrency one for the rest of the deployment after any 524 response, which could make large deployments exceed the upload session lifetime. Successful uploads now restore the session's original concurrency gradually while retaining gateway throttling. Requests that were already in flight when throttling began do not restore capacity, so a burst of stale successes cannot immediately undo backpressure.

• Updated dependencies [7db596c, a83d7ac, e35c4a1, d3565a5, a83d7ac, cb0955f, fa79b26, ca71205, 1015cfb, 982b806, a83d7ac, 641df47]:

  • miniflare@5.20260915.0-alpha
  • @cloudflare/workers-utils@0.39.0
  • @cloudflare/containers-shared@0.16.3
  • @cloudflare/cli-shared-helpers@0.1.31