# Trigger.dev v4.5.3 — trigger.dev v4.5.3

- Product: Trigger.dev (https://whatsnew.fyi/product/trigger-dev)
- Vendor: Trigger.dev
- Date: 2026-07-10
- Version: v4.5.3
- Original notes: https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.3
- Permalink: https://whatsnew.fyi/product/trigger-dev/releases/v4.5.3

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **removed** — Removed support for the end-of-life v3 trigger dev CLI; starting a dev session with an old v3 CLI now returns an upgrade message instead of connecting
- **fixed** — Fix TS2742 (inferred type cannot be named) when exporting a chat.agent from a project with declaration emit by declaring ChatTaskWirePayload and ChatInputChunk in the public @trigger.dev/sdk/chat subpath
- **changed** — Reduce primary database load on the runs page by serving its empty-state check from ClickHouse instead of Postgres
- **fixed** — Fixed submitting your email on the login page reloading back to an empty form instead of showing the magic link confirmation screen

##### Upgrade

```sh
npx trigger.dev@latest update  # npm
pnpm dlx trigger.dev@latest update  # pnpm
yarn dlx trigger.dev@latest update  # yarn
bunx trigger.dev@latest update  # bun
```

Self-hosted Docker image: [`ghcr.io/triggerdotdev/trigger.dev:v4.5.3`](https://github.com/triggerdotdev/trigger.dev/pkgs/container/trigger.dev/1017574761?tag=v4.5.3)

##### Release notes

Read the full release notes: https://trigger.dev/changelog/v4-5-3

##### What's changed

##### Breaking changes
- Removed support for the end-of-life v3 `trigger dev` CLI. Starting a dev session with an old v3 CLI now returns an upgrade message instead of connecting - upgrade to the v4 CLI to continue using `trigger dev`. ([#4198](https://github.com/triggerdotdev/trigger.dev/pull/4198))

##### Bug fixes
- Fix TS2742 ("inferred type cannot be named") when exporting a `chat.agent` from a project with declaration emit: `ChatTaskWirePayload` and `ChatInputChunk` are now declared in the public `@trigger.dev/sdk/chat` subpath, so inferred agent types emit portable declarations and the wire types are directly importable. ([#4218](https://github.com/triggerdotdev/trigger.dev/pull/4218))

##### Server changes

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

- Reduce primary database load on the runs page by serving its empty-state check from ClickHouse instead of Postgres. ([#4202](https://github.com/triggerdotdev/trigger.dev/pull/4202))
- Fixed submitting your email on the login page reloading back to an empty form instead of showing the magic link confirmation screen. ([#4215](https://github.com/triggerdotdev/trigger.dev/pull/4215))

##### All packages: v4.5.3

@trigger.dev/build, @trigger.dev/core, @trigger.dev/python, @trigger.dev/react-hooks, @trigger.dev/redis-worker, @trigger.dev/rsc, @trigger.dev/schema-to-json, @trigger.dev/sdk, trigger.dev

##### Contributors

Eric Allam, Oskar Otwinowski, github-actions[bot], Matt Aitken, James Ritchie, claude[bot], Chris Arderne, @nicktrn

**Full changelog**: https://github.com/triggerdotdev/trigger.dev/compare/v4.5.2...v4.5.3