cloudflare/workers-sdk miniflare@5.20261001.0-alpha

on GitHub

Minor Changes

• #15970 b00ef4f Thanks @wperron! - Keep local development responsive while capturing observability data

  Local observability now records high volumes of spans and logs with less impact on the main Worker, making local requests faster and more responsive. If observability data arrives faster than it can be stored, completed entries are dropped rather than slowing the Worker; the buffer size can be tuned with X_LOCAL_OBSERVABILITY_BATCH_SIZE.

• #15777 464a582 Thanks @Naapperas! - Support the new Workflows createBatch() API in local development

  Local Workflows bindings now accept object-form batches that create instances from a count or a list of instance options. The result includes handles for created instances and indexed per-instance errors, matching the runtime API while preserving the deprecated array form.

Patch Changes

• #15984 9d7b08e Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  @cloudflare/workers-types	^5.20260930.2	^5.20261001.1
  workerd	1.20260930.2	1.20261001.1