# @cloudflare/workflows-shared

## 0.12.0

### Minor Changes

- [#14465](https://github.com/cloudflare/workers-sdk/pull/14465) [`2fedb1f`](https://github.com/cloudflare/workers-sdk/commit/2fedb1fc811efb3f7544c569e57383cabd4f14f8) Thanks [@vaishnav-mk](https://github.com/vaishnav-mk)! - Add rollback support when terminating Workflow instances

  `WorkflowInstance.terminate({ rollback: true })` now runs registered rollback handlers before marking a local Workflow instance as terminated. Wrangler also supports this via `wrangler workflows instances terminate --rollback`, including local mode.

  The rollback option is only sent for terminate operations and is rejected by the Local Explorer API for pause, resume, and restart actions.

## 0.11.2

### Patch Changes

- [#14318](https://github.com/cloudflare/workers-sdk/pull/14318) [`f32e9c1`](https://github.com/cloudflare/workers-sdk/commit/f32e9c1fdbf8ab7c0e68afa613ec61e367be04cb) Thanks [@vaishnav-mk](https://github.com/vaishnav-mk)! - Add step context to Workflows rollback handlers

  Rollback handlers now receive the original step context under `ctx`, making `ctx.step.name`, `ctx.step.count`, `ctx.attempt`, and the resolved step `config` available during rollback. The legacy `stepName` field remains available and is equivalent to `${ctx.step.name}-${ctx.step.count}`.

  `rollbackConfig` is now limited to retry and timeout settings, matching the behavior supported by rollback handlers.

- [#14314](https://github.com/cloudflare/workers-sdk/pull/14314) [`5c3bb11`](https://github.com/cloudflare/workers-sdk/commit/5c3bb118a99da70c5c1efb07df37f685e7044ba6) Thanks [@harryzcy](https://github.com/harryzcy)! - Bump esbuild to 0.28.1

  This update includes several bug fixes from esbuild versions 0.27.3 through 0.28.1. See the [esbuild changelog](https://github.com/evanw/esbuild/blob/v0.28.1/CHANGELOG.md) for details.

## 0.11.1

### Patch Changes

- [#14134](https://github.com/cloudflare/workers-sdk/pull/14134) [`262dfc2`](https://github.com/cloudflare/workers-sdk/commit/262dfc2b32531165f94ba87c70ce75fcb1490b61) Thanks [@matingathani](https://github.com/matingathani)! - Fix `wrangler dev` Workflows crashing with `SQLITE_TOOBIG` when a step returns a large `Uint8Array`

  `JSON.stringify` encodes each byte of a `Uint8Array` as a separate numeric key
  (`{"0":1,"1":2,...}`), producing a string ~10× larger than the array's byte
  length. A 200 KB `Uint8Array` became a ~2 MB JSON string that exceeded SQLite's
  blob limit, crashing the Workflow step. The same bytes returned as an
  `ArrayBuffer` succeeded because `JSON.stringify(ArrayBuffer)` → `{}`.

  The step log metadata (used by the local Workflows explorer) now stores a
  human-readable description for `TypedArray` and `ArrayBuffer` outputs
  (`[Uint8Array(200000 bytes)]`) instead of attempting to JSON-serialise the raw
  bytes. The actual step value is unaffected — it is preserved in Durable Object
  key-value storage via structured clone for replay by subsequent steps.

## 0.11.0

### Minor Changes

- [#13983](https://github.com/cloudflare/workers-sdk/pull/13983) [`9803586`](https://github.com/cloudflare/workers-sdk/commit/98035862e1e303ca1f380d8d2694ad3d4659e3be) Thanks [@vaishnav-mk](https://github.com/vaishnav-mk)! - Add rollback support for local Workflows development

  Workflow steps can now register a compensation callback with trailing rollback options: `step.do(name, fn, { rollback })` and `step.do(name, config, fn, { rollback, rollbackConfig })`. When the workflow fails, the local engine runs every registered rollback in reverse step-start order (LIFO), giving steps the opportunity to undo their side effects.

  Each rollback executes through an internal rollback-scoped `Context.do`, so it inherits the existing retry / timeout / attempt-tracking machinery. `rollbackConfig` lets users override the per-rollback config.

  Note: the public rollback option type lands with workerd's `workflows_step_rollback` compat flag. Until that ships, the trailing rollback options only flow through when called through the StepPromise wrapper from a worker that has the flag enabled.

## 0.10.0

### Minor Changes

- [#13565](https://github.com/cloudflare/workers-sdk/pull/13565) [`b04eedf`](https://github.com/cloudflare/workers-sdk/commit/b04eedfcdc713d04cbb4f1722ebe056c9dc4cb6e) Thanks [@vaishnav-mk](https://github.com/vaishnav-mk)! - Add restart from step support for local Workflows development

  Workflow instances can now be restarted from a specific step in local development. When restarting from a step, all earlier steps preserve their cached results and replay instantly, while the target step and everything after it re-execute.

  The `WorkflowInstance.restart()` method now accepts an optional `{ from: { name, count?, type? } }` parameter to specify which step to restart from.

## 0.9.1

### Patch Changes

- [#13560](https://github.com/cloudflare/workers-sdk/pull/13560) [`7567ef7`](https://github.com/cloudflare/workers-sdk/commit/7567ef703f1bf157ef29e6d19dd0dd9f1ff8771f) Thanks [@vaishnav-mk](https://github.com/vaishnav-mk)! - Preserve NonRetryableError message and name when the `workflows_preserve_non_retryable_error_message` compatibility flag is enabled, instead of replacing it with a generic error message.

## 0.9.0

### Minor Changes

- [#13351](https://github.com/cloudflare/workers-sdk/pull/13351) [`3788983`](https://github.com/cloudflare/workers-sdk/commit/3788983378793781829798bb10ae710fb452f746) Thanks [@pombosilva](https://github.com/pombosilva)! - Add `step` and `config` properties to the workflow step context

  The callback passed to `step.do()` now receives `ctx.step` (with `name` and `count`) and `ctx.config` (the fully resolved step configuration with defaults merged in), in addition to the existing `ctx.attempt`.

## 0.8.0

### Minor Changes

- [#13145](https://github.com/cloudflare/workers-sdk/pull/13145) [`5b60405`](https://github.com/cloudflare/workers-sdk/commit/5b60405954a2866a67920f5a7a48748861f58a60) Thanks [@Caio-Nogueira](https://github.com/Caio-Nogueira)! - Add support for ReadableStream on workflow steps. This allows users to overcome the 1MB limit per step output.

  `ReadableStream<Uint8Array>` is already serializable on the workers platform. This feature makes it native to workflows as well by persisting each chunk and replaying it if needed

## 0.7.2

### Patch Changes

- [#13086](https://github.com/cloudflare/workers-sdk/pull/13086) [`d4c6158`](https://github.com/cloudflare/workers-sdk/commit/d4c61587094a2a2ceee35acfb3619c95e0a993fe) Thanks [@pombosilva](https://github.com/pombosilva)! - Add Workflows support to the local explorer UI.

  The local explorer (`/cdn-cgi/explorer/`) now includes a full Workflows dashboard for viewing and managing workflow instances during local development.

  UI features:

  - Workflow instance list with status badges, creation time, action buttons, and pagination
  - Status summary bar with instance counts per status
  - Status filter dropdown and search
  - Instance detail page with step history, params/output cards, error display, and expandable step details
  - Create instance dialog with optional ID and JSON params

## 0.7.1

### Patch Changes

- [#12985](https://github.com/cloudflare/workers-sdk/pull/12985) [`17a57e6`](https://github.com/cloudflare/workers-sdk/commit/17a57e641798dca0b298bd91dcdcef6be30d38b6) Thanks [@pombosilva](https://github.com/pombosilva)! - Fix `waitForEvent` delivering events to stale waiters after timeout.

  When a `step.waitForEvent()` call timed out, its resolver was not removed from the workflow's internal waiters map. This meant the next `step.waitForEvent()` for the same event type would have its incoming event consumed by the dead resolver instead of the live one, causing the workflow to hang indefinitely.

## 0.7.0

### Minor Changes

- [#12881](https://github.com/cloudflare/workers-sdk/pull/12881) [`8729f3d`](https://github.com/cloudflare/workers-sdk/commit/8729f3d0954c5325a0a28da6fa87129411819787) Thanks [@pombosilva](https://github.com/pombosilva)! - Workflow instances now support pause, resume, restart, and terminate in local dev.

  ```js
  const instance = await env.MY_WORKFLOW.create({
    id: "my-instance",
  });

  await instance.pause(); // pauses after the current step completes
  await instance.resume(); // resumes from where it left off
  await instance.restart(); // restarts the workflow from the beginning
  await instance.terminate(); // terminates the workflow immediately
  ```

## 0.6.0

### Minor Changes

- [#11970](https://github.com/cloudflare/workers-sdk/pull/11970) [`f235827`](https://github.com/cloudflare/workers-sdk/commit/f235827c10c36996c89f50af76aac48326f42b0c) Thanks [@pombosilva](https://github.com/pombosilva)! - Adds step context with attempt count to step.do() callbacks.

  Workflow step callbacks now receive a context object containing the current attempt number (1-indexed).
  This allows developers to access which retry attempt is currently executing.

  Example:

  ```ts
  await step.do("my-step", async (ctx) => {
    // ctx.attempt is 1 on first try, 2 on first retry, etc.
    console.log(`Attempt ${ctx.attempt}`);
  });
  ```

## 0.5.0

### Minor Changes

- [#12622](https://github.com/cloudflare/workers-sdk/pull/12622) [`bf9cb3d`](https://github.com/cloudflare/workers-sdk/commit/bf9cb3d32d4710dbefd7d3c412aefe1558ecd57e) Thanks [@LuisDuarte1](https://github.com/LuisDuarte1)! - Add configurable step limits for Workflows

  You can now set a maximum number of steps for a Workflow instance via the `limits.steps` configuration in your Wrangler config. When a Workflow instance exceeds this limit, it will fail with an error indicating the limit was reached.

  ```jsonc
  // wrangler.jsonc
  {
    "workflows": [
      {
        "binding": "MY_WORKFLOW",
        "name": "my-workflow",
        "class_name": "MyWorkflow",
        "limits": {
          "steps": 5000
        }
      }
    ]
  }
  ```

  The `steps` value must be an integer between 1 and 25,000. If not specified, the default limit of 10,000 steps is used. Step limits are also enforced in local development via `wrangler dev`.

## 0.4.0

### Minor Changes

- [#11648](https://github.com/cloudflare/workers-sdk/pull/11648) [`eac5cf7`](https://github.com/cloudflare/workers-sdk/commit/eac5cf74db6d1b0865f5dc3a744ff28e695d53ca) Thanks [@pombosilva](https://github.com/pombosilva)! - Add Workflows test handlers in vitest-pool-workers to get the Workflow instance output and error:

  - `getOutput()`: Returns the output of the successfully completed Workflow instance.
  - `getError()`: Returns the error information of the errored Workflow instance.

  Example:

  ```ts
  // First wait for the workflow instance to complete:
  await expect(
    instance.waitForStatus({ status: "complete" })
  ).resolves.not.toThrow();

  // Then, get its output
  const output = await instance.getOutput();

  // Or for errored workflow instances, get their error:
  await expect(
    instance.waitForStatus({ status: "errored" })
  ).resolves.not.toThrow();
  const error = await instance.getError();
  ```

## 0.3.9

### Patch Changes

- [#11448](https://github.com/cloudflare/workers-sdk/pull/11448) [`2b4813b`](https://github.com/cloudflare/workers-sdk/commit/2b4813b18076817bb739491246313c32b403651f) Thanks [@edmundhung](https://github.com/edmundhung)! - Builds package with esbuild `v0.27.0`

## 0.3.8

### Patch Changes

- [#10919](https://github.com/cloudflare/workers-sdk/pull/10919) [`ca6c010`](https://github.com/cloudflare/workers-sdk/commit/ca6c01017ccc39671e8724a6b9a5aa37a5e07e57) Thanks [@Caio-Nogueira](https://github.com/Caio-Nogueira)! - migrate workflow to use a wrapped binding

## 0.3.7

### Patch Changes

- [#10813](https://github.com/cloudflare/workers-sdk/pull/10813) [`545afe5`](https://github.com/cloudflare/workers-sdk/commit/545afe504ab6c3c44373fc47d58a2641aadb0d2d) Thanks [@pombosilva](https://github.com/pombosilva)! - Workflows are now created if the Request gets redirected after creation

## 0.3.6

### Patch Changes

- [#10785](https://github.com/cloudflare/workers-sdk/pull/10785) [`d09cab3`](https://github.com/cloudflare/workers-sdk/commit/d09cab3b86149a67c471401daa64ff631cfb4e49) Thanks [@pombosilva](https://github.com/pombosilva)! - Workflows names and instance IDs are now properly validated with production limits.

## 0.3.5

### Patch Changes

- [#10219](https://github.com/cloudflare/workers-sdk/pull/10219) [`28494f4`](https://github.com/cloudflare/workers-sdk/commit/28494f413bba3c509c56762b9260edd0ffef4f28) Thanks [@dario-piotrowicz](https://github.com/dario-piotrowicz)! - fix `NonRetryableError` thrown with an empty error message not stopping workflow retries locally

## 0.3.4

### Patch Changes

- [#9367](https://github.com/cloudflare/workers-sdk/pull/9367) [`2e12e6e`](https://github.com/cloudflare/workers-sdk/commit/2e12e6e6f37d35805fcf6b0f8916cb4136543837) Thanks [@Caio-Nogueira](https://github.com/Caio-Nogueira)! - Fix instance hydration after abort. Some use cases were causing instances to not be properly rehydrated after server shutdown, which would cause the instance to be lost.

## 0.3.3

### Patch Changes

- [#9033](https://github.com/cloudflare/workers-sdk/pull/9033) [`2c50115`](https://github.com/cloudflare/workers-sdk/commit/2c501151d3d1a563681cdb300a298b83862b60e2) Thanks [@dario-piotrowicz](https://github.com/dario-piotrowicz)! - chore: convert wrangler.toml files into wrangler.jsonc ones

## 0.3.2

### Patch Changes

- [#8775](https://github.com/cloudflare/workers-sdk/pull/8775) [`ec7e621`](https://github.com/cloudflare/workers-sdk/commit/ec7e6212199272f9811a30a84922823c82d7d650) Thanks [@LuisDuarte1](https://github.com/LuisDuarte1)! - Add `waitForEvent` and `sendEvent` support for local dev

## 0.3.1

### Patch Changes

- [#8606](https://github.com/cloudflare/workers-sdk/pull/8606) [`18edbc2`](https://github.com/cloudflare/workers-sdk/commit/18edbc2a6b02e6b7cd0a027e5b90ff043da6ee79) Thanks [@LuisDuarte1](https://github.com/LuisDuarte1)! - Implement local dev for createBatch

## 0.3.0

### Minor Changes

- [#7334](https://github.com/cloudflare/workers-sdk/pull/7334) [`869ec7b`](https://github.com/cloudflare/workers-sdk/commit/869ec7b916487ec43b958a27bdfea13588c5685f) Thanks [@penalosa](https://github.com/penalosa)! - Packages in Workers SDK now support the versions of Node that Node itself supports (Current, Active, Maintenance). Currently, that includes Node v18, v20, and v22.

## 0.2.3

### Patch Changes

- [#8123](https://github.com/cloudflare/workers-sdk/pull/8123) [`7f565c5`](https://github.com/cloudflare/workers-sdk/commit/7f565c5c8844cd8c42137ed653e0665fa54950d1) Thanks [@LuisDuarte1](https://github.com/LuisDuarte1)! - Make NonRetryableError work and cache errored steps

## 0.2.2

### Patch Changes

- [#7575](https://github.com/cloudflare/workers-sdk/pull/7575) [`7216835`](https://github.com/cloudflare/workers-sdk/commit/7216835bf7489804905751c6b52e75a8945e7974) Thanks [@LuisDuarte1](https://github.com/LuisDuarte1)! - Make `Instance.status()` return type the same as production

## 0.2.1

### Patch Changes

- [#7520](https://github.com/cloudflare/workers-sdk/pull/7520) [`805ad2b`](https://github.com/cloudflare/workers-sdk/commit/805ad2b3959210b0d838daf789f580f329e1d7dd) Thanks [@bruxodasilva](https://github.com/bruxodasilva)! - Fixed a bug in local development where fetching a Workflow instance by ID would return a Workflow status, even if that instance did not exist. This only impacted the `get()` method on the Worker bindings.

## 0.2.0

### Minor Changes

- [#7286](https://github.com/cloudflare/workers-sdk/pull/7286) [`563439b`](https://github.com/cloudflare/workers-sdk/commit/563439bd02c450921b28d721d36be5a70897690d) Thanks [@LuisDuarte1](https://github.com/LuisDuarte1)! - Add proper engine persistance in .wrangler and fix multiple workflows in miniflare

## 0.1.2

### Patch Changes

- [#7225](https://github.com/cloudflare/workers-sdk/pull/7225) [`bb17205`](https://github.com/cloudflare/workers-sdk/commit/bb17205f1cc357cabc857ab5cad61b6a4f3b8b93) Thanks [@bruxodasilva](https://github.com/bruxodasilva)! - - Fix workflows binding to create a workflow without arguments
  - Fix workflows instance.id not working the same way in wrangler local dev as it does in production

## 0.1.1

### Patch Changes

- [#7045](https://github.com/cloudflare/workers-sdk/pull/7045) [`5ef6231`](https://github.com/cloudflare/workers-sdk/commit/5ef6231a5cefbaaef123e6e8ee899fb81fc69e3e) Thanks [@RamIdeas](https://github.com/RamIdeas)! - Add preliminary support for Workflows in wrangler dev