---
name: Workflow Changelog
slug: upstash-workflow-changelog
type: feed
source_url: https://upstash.com/docs/workflow/changelog
organization: Upstash
organization_slug: upstash
total_releases: 15
latest_date: 2026-03-18
last_updated: 2026-04-18
tracking_since: 2024-11-19
canonical: https://releases.sh/upstash/upstash-workflow-changelog
organization_url: https://releases.sh/upstash
---

<Release date="March 18, 2026" published="2026-03-18T10:52:22.000Z" url="https://upstash.com/docs/workflow/changelog#march-2026">
## March 2026

TypeScript SDK (workflow-js):

Added optional workflowRunId parameter to notify method, enabling lookback functionality. When provided, notifications are stored and delivered even if sent before a workflow reaches waitForEvent, preventing race conditions. See [notify documentation](/workflow/basics/client/notify) and [wait-for-event guide](/workflow/features/wait-for-event#race-condition-between-wait-and-notify) for details.
</Release>

<Release date="October 9, 2025" published="2025-10-09T07:47:59.000Z" url="https://upstash.com/docs/workflow/changelog#september-2025">
## September 2025

TypeScript SDK (workflow-js):

Label feature is added. This will enable our users to label their workflow runs so that

Logs can be filtered with user given label.
DLQ can be filtered with user given label.


notBefore parameter is added to trigger function that will allow starting a workflow run at a later date
given by the notBefore parameter.


Console:

A major Workflow redesign is landed to improve debugging and monitoring experience workflow runs logs.

Flat view is removed. All the data is moved to single view. This is also to avoid confusing our
users and made over all experience simpler.
</Release>

<Release date="August 22, 2025" published="2025-08-22T08:05:35.000Z" url="https://upstash.com/docs/workflow/changelog#august-2025">
## August 2025

TypeScript SDK (workflow-js):

Added retryDelay option to dynamicaly program the retry duration. It can be configured on
[trigger](/workflow/basics/client#trigger-workflow) , [context.call](/workflow/basics/context#context-call)
or [serve](/workflow/basics/serve#retrydelay)
Added ability to detect if a given url is a workflow or not. Starting with 0.2.17 trigger made via the sdk can fail (instead of hanging),
if there is no workflow serve on the given url.


Console:

Local mode is added to enable our users to use the console with their local development envrionment and the locally deployed workflows.
See [docs](/workflow/howto/local-development#development-server-recommended) for details.
</Release>

<Release date="August 22, 2025" published="2025-08-22T08:05:35.000Z" url="https://upstash.com/docs/workflow/changelog#july-2025">
## July 2025

TypeScript SDK (workflow-js):

Restart/Resume for DLQ is added to allow more options to handle failed runs. See [here](/workflow/howto/failures#manually-handling-failed-workflow-runs)
Added WorkflowNonRetryableError to fail a workflow without causing any retries. See [here](/workflow/basics/context#error-handling-and-retries)
For additional bug fixes, see the full changelog [here](https://github.com/upstash/workflow-js/compare/v0.2.14...v0.2.16).
</Release>

<Release date="July 4, 2025" published="2025-07-04T06:22:58.000Z" url="https://upstash.com/docs/workflow/changelog#june-2025">
## June 2025

TypeScript SDK (workflow-js):

Added useFailureFunction and failureFunction to client.trigger. See [here](https://github.com/upstash/workflow-js/pull/107).
Added batch triggering support to client.trigger. See [here](https://github.com/upstash/workflow-js/pull/110).
For additional bug fixes, see the release notes [here](https://github.com/upstash/workflow-js/releases/tag/v0.2.14).


Python SDK (workflow-py):  

Failure function is implemented. This feature enables to act on a failure of a workflow on the code. See docs [here](/workflow/howto/failures#using-a-failurefunction-recommended)
For other bug fixes, see the full changelog [here](https://github.com/upstash/workflow-py/compare/v0.1.0...v0.1.1).


Console:

A major redesign is coming next month to improve Workflow usability.


Workflow Server:  

An issue causing Workflows not usable with CloudFront is fixed.
</Release>

<Release date="May 29, 2025" published="2025-05-29T11:55:48.000Z" url="https://upstash.com/docs/workflow/changelog#april-2025">
## April 2025

Python SDK (workflow-py):  

Minor bug fixes.
See the full changelog [here](https://github.com/upstash/workflow-py/compare/v0.1.0...v0.1.1).


Workflow Server:

Prevented intermediate Workflow calls from failing due to request/message quota limits.
Fixed handling of RUN_STARTED so that it correctly returns unfinished Workflow Runs as documented.
Previously, some Workflow Runs could be skipped if internal state was logged after RUN_STARTED.
Applied several performance optimizations.
</Release>

<Release date="May 29, 2025" published="2025-05-29T11:55:48.000Z" url="https://upstash.com/docs/workflow/changelog#may-2025">
## May 2025

TypeScript SDK (workflow-js):

Added a workflow parameter to context.call, enabling type-safe workflow calls. See [here](https://github.com/upstash/workflow-js/pull/75).
Enabled passing context.call settings when defining an Agent. See [here](https://github.com/upstash/workflow-js/pull/90).
Added delay support to client.trigger. See [here](https://github.com/upstash/workflow-js/pull/100).
Introduced period and improved rate support in flow control. See [here](https://github.com/upstash/workflow-js/pull/101).
Previously, period was fixed at 1 second. For example, rate: 3 period: 1d throttles publishes to 3 per day.
For additional bug fixes, see the release notes [here](https://github.com/upstash/workflow-js/releases/tag/v0.2.13).


Workflow Server:

Added support for custom period in flow control, allowing users to set a period of up to 1 week.
Previously, period was fixed at 1 second. For example, rate: 3 period: 1d throttles publishes to 3 per day.
Implemented Workflow Resume and Restart features (SDK and Console support in progress):

Resume allows users to retry a workflow run from the point it stopped.
Restart allows users to retry a workflow run from the beginning.




Console:

A major redesign is coming to improve Workflow usability.
</Release>

<Release date="April 4, 2025" published="2025-04-04T13:15:51.000Z" url="https://upstash.com/docs/workflow/changelog#march-2025">
## March 2025

TypeScript SDK (workflow-js):

Added onError support to serve by the community. See [here](https://github.com/upstash/workflow-js/pull/79).
Enabled support for all fetch-compatible models in Agents. See [more details here](https://github.com/upstash/workflow-js/pull/77).
For additional bug fixes, see the full changelog [here](https://github.com/upstash/workflow-js/compare/v0.2.11...v0.2.12).
</Release>

<Release date="February 10, 2025" published="2025-02-10T11:57:09.000Z" url="https://upstash.com/docs/workflow/changelog#february-2025">
## February 2025

TypeScript SDK (workflow-js):

Fixed a Unicode issue in context.call where binary responses from endpoints could break. See [here](https://github.com/upstash/workflow-js/pull/71).
Introduced WorkflowTool, allowing Workflow Agents to define multi-step workflows as a tool. See [here](/workflow/agents/features#tools).
Added context.invoke to call one workflow from another with full type-safety. See the guide [here](/workflow/features/invoke).
Introduced flow control parameters to limit the rate or concurrency of workflow runs. Learn more [here](/workflow/features/flow-control).
For additional bug fixes, see the full changelog [here](https://github.com/upstash/workflow-js/compare/v0.2.3...v0.2.6).


Workflow Server:

Added RateLimit and Parallelism controls to manage the frequency and concurrency of workflow runs. Learn more [here](/workflow/features/flow-control).
</Release>

<Release date="January 14, 2025" published="2025-01-14T11:23:53.000Z" url="https://upstash.com/docs/workflow/changelog#january-2025">
## January 2025

TypeScript SDK (workflow-js):

Added the Agents API to workflows. You can now create AI agents to run workflows on your own infrastructure with all the benefits of workflows: reduced environment costs, fault tolerance, and scalability. Learn more about agents [here](/workflow/agents/overview).
For other bug fixes, see the full changelog [here](https://github.com/upstash/workflow-js/compare/v0.2.3...v0.2.6).


Python SDK (workflow-py):

Released [workflow-py](https://github.com/upstash/workflow-py).


Local Development Server:

The local development server is now available for public use. This server allows you to test your workflows locally. Learn more about the local development server [here](/workflow/howto/local-development#development-server-recommended).


Console:

Separated Workflow and QStash consoles for a better user experience.
Separated their DLQ messages as well.


Workflow Server:

The core team focused on RateLimit and Parallelism features. These features are ready on the server and will be announced next month after the documentation and SDKs are completed.
</Release>

<Release date="January 10, 2025" published="2025-01-10T10:07:17.000Z" url="https://upstash.com/docs/workflow/changelog#december-2024">
## December 2024

TypeScript SDK (workflow-js):

Introduced third-party integrations, starting with Anthropic, Resend, and OpenAI. These integrations are automatically offloaded to workflows, ensuring long-running calls do not consume user environment time. See the related documentation [here](/workflow/basics/context#context-api).
Added a timeout parameter to context.call. Learn more in the [documentation](/workflow/basics/context#context-call).
Improved support for workflows in Express and SvelteKit by adding the useJSONContent option.
Resolved loop detection issues on Cloudflare and Render.
Full changelog, including all fixes, is available [here](https://github.com/upstash/workflow-js/compare/v0.2.0...v0.2.3).



Workflow Server:

Added the WorkflowCreatedAt filter for Dead Letter Queue (DLQ) and Events.
Prepared the local development server for public release (coming soon).
Enhanced context.SleepUntil to support float values.
Increased the event retention period from 10,000 events to up to 14 days. Learn more on the [Pricing page](https://upstash.com/pricing/workflow).
</Release>

<Release date="December 6, 2024" published="2024-12-06T11:02:57.000Z" url="https://upstash.com/docs/workflow/changelog#november-2024">
## November 2024

Python SDK (workflow-py):

Began development of the Python SDK.


TypeScript SDK (workflow-js):

Added support for string durations (e.g., 1d, 30s) in context.sleep and context.waitForEvent.
Introduced integrations for [Astro](/workflow/quickstarts/astro) and [Express](/workflow/quickstarts/express).
Added client.trigger, enabling workflows to start and return the workflow run ID. See the [documentation](/workflow/basics/client#trigger-workflow).
Added a retry option for context.call. See the [documentation](/workflow/basics/context#context-call).
Introduced a lazy fetch feature to support longer and larger workflows on resource-limited platforms.
Added context.cancel to cancel the current workflow. See the [documentation](/workflow/basics/context#context-cancel).
Full changelog, including fixes, is available [here](https://github.com/upstash/workflow-js/compare/v0.1.2...v0.2.0).


Workflow Server:

Added bulk cancel functionality for workflow runs. See the [REST API](/workflow/api-reference/runs/bulk-cancel-workflow-runs).
Introduced content-based deduplication for workflows and retry-until-success functionality. This will allow workflows to be used in areas with unstable network connection.
</Release>

<Release date="November 19, 2024" published="2024-11-19T05:08:08.000Z" url="https://upstash.com/docs/workflow/changelog#august-2024">
## August 2024

Released [Upstash Workflow](/workflow/getstarted).
</Release>

<Release date="November 19, 2024" published="2024-11-19T05:08:08.000Z" url="https://upstash.com/docs/workflow/changelog#october-2024">
## October 2024

Optimized the console by trimming event bodies, reducing resource usage and enabling efficient querying of events with large payloads.
Began development on a new architecture to deliver faster event processing on the server.
Added [Wait Notify](/workflow/features/wait-for-event) feature.
</Release>

<Release date="November 19, 2024" published="2024-11-19T05:08:08.000Z" url="https://upstash.com/docs/workflow/changelog#september-2024">
## September 2024

Bug fixes and internal logging improvements.
</Release>