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chore: release v4.5.4 (#4228)
## Summary
2 new features, 11 improvements, 5 bug fixes.

## Breaking changes
- Trigger.dev v3 is no longer supported. For self-hosted deployments,
4.5.0 is the last version we officially support for running v3; stay on
4.5.0 or upgrade to v4. v3 triggers, batch triggers, reschedules, and
deploys now return a clear upgrade message instead of running.
([#4236](https://github.com/triggerdotdev/trigger.dev/pull/4236))

## Improvements
- You can now mark environment variables synced via the `syncEnvVars`
build extension as secrets. Return `{ name, value, isSecret: true }`
from your callback and those variables are stored redacted in the
dashboard, just like manually created secret env vars.
([#4203](https://github.com/triggerdotdev/trigger.dev/pull/4203))
- Remove the legacy `--mcp` and `--mcp-port` options from the `dev`
command. Run the dedicated `trigger mcp` command to start the
Trigger.dev MCP server.
([#4246](https://github.com/triggerdotdev/trigger.dev/pull/4246))
- Removed the unused `ResourceMonitor` export from
`@trigger.dev/core/v3/serverOnly`. It was a server-side logging helper
with no remaining consumers.
([#4244](https://github.com/triggerdotdev/trigger.dev/pull/4244))
- Removed the unused `@trigger.dev/core/v3/zodNamespace` export and the
legacy v3 socket message schemas. These were only used by the
now-retired v3 engine and have no v4 consumers.
([#4236](https://github.com/triggerdotdev/trigger.dev/pull/4236))

## Bug fixes
- Fix a `chat.agent` message-loss race where sending a message right
after an action (such as an undo) could drop the follow-up's response
from the UI until a refresh.
([#4234](https://github.com/triggerdotdev/trigger.dev/pull/4234))

## Server changes

These changes affect the self-hosted Docker image and Trigger.dev Cloud:

- Added `EVENT_REPOSITORY_POSTGRES_WRITES_DISABLED` to skip all
PostgreSQL task-event writes for deployments that store task events in
ClickHouse. Leave it off unless `EVENT_REPOSITORY_DEFAULT_STORE` is
`clickhouse_v2`, otherwise task events are lost.
([#4242](https://github.com/triggerdotdev/trigger.dev/pull/4242))
- Promo credits: a /promo signup landing page, redeeming a promo code
when a new org selects a plan, and showing remaining credits on the
usage page.
([#4138](https://github.com/triggerdotdev/trigger.dev/pull/4138))
- Speed up retrieving a background worker by version. The endpoint no
longer runs a slow lookup that scanned the full task table for large
deployments; it now reuses data it already loads, so the response is the
same but returns much faster.
([#4245](https://github.com/triggerdotdev/trigger.dev/pull/4245))
- Clearer login error when an email address is blocked by the
WHITELISTED_EMAILS setting: the message now explains the address isn't
allowed on this instance instead of the ambiguous "This email is
unauthorized".
([#4220](https://github.com/triggerdotdev/trigger.dev/pull/4220))
- Make the native build server the default in project build settings.
It's now opt-out, stored as a new `disableNativeBuildServer` key. Also
clarifies in the UI that build settings apply to GitHub-triggered and
native build server deployments.
([#3980](https://github.com/triggerdotdev/trigger.dev/pull/3980))
- Optionally process high-volume telemetry ingestion in parallel for
higher throughput under heavy load by setting
`OTEL_TRANSFORM_WORKER_POOL_ENABLED=1`. Off by default.
([#4232](https://github.com/triggerdotdev/trigger.dev/pull/4232))
- Add a `REALTIME_BACKEND_DEFAULT` env var to choose the default
realtime backend (`electric`, `native`, or `shadow`) for environments
whose org has no per-org override. Defaults to `electric`, so existing
behavior is unchanged.
([#4231](https://github.com/triggerdotdev/trigger.dev/pull/4231))
- Clarified on the Regions page that a region only affects where your
runs execute, not where your data is stored. This shows as a tooltip on
the Location column and in the confirmation dialog when you change your
default region.
([#4226](https://github.com/triggerdotdev/trigger.dev/pull/4226))
- Improved the reliability of how run data is read and written.
([#4237](https://github.com/triggerdotdev/trigger.dev/pull/4237))
- Fixed stale login errors: an error from a previous login attempt (for
example a rejected email address) no longer keeps reappearing on the
login page and no longer makes later, successful attempts look like they
failed.
([#4220](https://github.com/triggerdotdev/trigger.dev/pull/4220))
- The Errors page now shows better details for each error. Errors that
don't carry a message — such as errors thrown without a message, or
values thrown that aren't `Error` objects — get a meaningful title
instead of all reading "Unknown error", and are grouped by their name
(or value) rather than collapsed into a single group. The error type now
shows the actual error name, and stack traces now appear where
previously they were missing.
([#4225](https://github.com/triggerdotdev/trigger.dev/pull/4225))
- Return a clear client error when SSO form submissions use an
unsupported content type
([#4238](https://github.com/triggerdotdev/trigger.dev/pull/4238))
- Query page: extracting fields from a run's output with JSON functions
(such as JSONExtractString or JSONExtractInt) no longer fails with an
"illegal type: JSON" error.
([#4221](https://github.com/triggerdotdev/trigger.dev/pull/4221))

<details>
<summary>Raw changeset output</summary>

# Releases
## @trigger.dev/build@4.5.4

### Patch Changes

- You can now mark environment variables synced via the `syncEnvVars`
build extension as secrets. Return `{ name, value, isSecret: true }`
from your callback and those variables are stored redacted in the
dashboard, just like manually created secret env vars.
([#4203](https://github.com/triggerdotdev/trigger.dev/pull/4203))
- Updated dependencies:
  - `@trigger.dev/core@4.5.4`
## trigger.dev@4.5.4

### Patch Changes

- Remove the legacy `--mcp` and `--mcp-port` options from the `dev`
command. Run the dedicated `trigger mcp` command to start the
Trigger.dev MCP server.
([#4246](https://github.com/triggerdotdev/trigger.dev/pull/4246))
- Updated dependencies:
  - `@trigger.dev/core@4.5.4`
  - `@trigger.dev/build@4.5.4`
  - `@trigger.dev/schema-to-json@4.5.4`
## @trigger.dev/core@4.5.4

### Patch Changes

- Removed the unused `ResourceMonitor` export from
`@trigger.dev/core/v3/serverOnly`. It was a server-side logging helper
with no remaining consumers.
([#4244](https://github.com/triggerdotdev/trigger.dev/pull/4244))
- Removed the unused `@trigger.dev/core/v3/zodNamespace` export and the
legacy v3 socket message schemas. These were only used by the
now-retired v3 engine and have no v4 consumers.
([#4236](https://github.com/triggerdotdev/trigger.dev/pull/4236))
## @trigger.dev/python@4.5.4

### Patch Changes

- Updated dependencies:
  - `@trigger.dev/sdk@4.5.4`
  - `@trigger.dev/core@4.5.4`
  - `@trigger.dev/build@4.5.4`
## @trigger.dev/react-hooks@4.5.4

### Patch Changes

- Updated dependencies:
  - `@trigger.dev/core@4.5.4`
## @trigger.dev/redis-worker@4.5.4

### Patch Changes

- Updated dependencies:
  - `@trigger.dev/core@4.5.4`
## @trigger.dev/rsc@4.5.4

### Patch Changes

- Updated dependencies:
  - `@trigger.dev/core@4.5.4`
## @trigger.dev/schema-to-json@4.5.4

### Patch Changes

- Updated dependencies:
  - `@trigger.dev/core@4.5.4`
## @trigger.dev/sdk@4.5.4

### Patch Changes

- Fix a `chat.agent` message-loss race where sending a message right
after an action (such as an undo) could drop the follow-up's response
from the UI until a refresh.
([#4234](https://github.com/triggerdotdev/trigger.dev/pull/4234))
- Updated dependencies:
  - `@trigger.dev/core@4.5.4`

</details>

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-07-14 10:07:58 +01:00
..
2026-07-14 10:07:58 +01:00
2026-07-14 10:07:58 +01:00
2025-08-18 12:10:15 +01:00
2024-08-23 13:10:15 +01:00

Official TypeScript SDK for Trigger.dev

The Trigger.dev SDK is a TypeScript/JavaScript library that allows you to define and trigger tasks in your projects.

About Trigger.dev

Trigger.dev is an open source platform for building and deploying fully-managed AI agents and workflows. Write workflows in normal async TypeScript for everything from simple tasks to long-running AI agents, heavy media processing, complex real-time systems and more. Complete with full observability, managed queues, and elastic infrastructure which handles the horizontal scaling.

Core features

  • Task creation and execution
  • CLI for development and deployment
  • Build system with extensions
  • Management API for runs, schedules, and environment variables

Key Components:

  • Tasks: Background jobs written in TypeScript/JavaScript
  • CLI: Commands for login, init, dev, deploy
  • Build Extensions: Customize builds (Prisma, Python, FFmpeg, etc.)
  • Management API: Programmatic control over runs and resources

Getting started

There are two ways to get started:

  1. Create an account in our web app, create a new project and follow the instructions in the onboarding. Build and deploy your first task in minutes.
  2. Manual setup in your existing project.

SDK documentation

For more information on our SDK, refer to our docs.

Support

If you have any questions, please reach out to us on Discord and we'll be happy to help.