## Summary 5 improvements, 5 bug fixes. ## Improvements - Add experimental Node.js 24 and 26 task runtimes. Set `runtime` to `experimental-node-24` or `experimental-node-26` in `trigger.config.ts`. ([#4085](https://github.com/triggerdotdev/trigger.dev/pull/4085)) - Add `defaultRegion` to the project GET and list API responses; null when unset. ([#4146](https://github.com/triggerdotdev/trigger.dev/pull/4146)) ## Server changes These changes affect the self-hosted Docker image and Trigger.dev Cloud: - Transient internal sync failures are now retried quietly instead of surfacing as errors. ([#4270](https://github.com/triggerdotdev/trigger.dev/pull/4270)) - Optionally route ClickHouse read traffic to a read replica while writes stay on the primary. Set `CLICKHOUSE_READER_URL` to move all reads, or target the busiest paths with `RUNS_LIST_CLICKHOUSE_URL` (runs list) and `EVENTS_READER_CLICKHOUSE_URL` (traces, spans, logs). All optional; unset keeps current behavior. ([#4081](https://github.com/triggerdotdev/trigger.dev/pull/4081)) - Remove the deprecated realtime stream write endpoint used by retired v3 task clients. ([#4250](https://github.com/triggerdotdev/trigger.dev/pull/4250)) - Fix batchTrigger requests that set a per-item idempotency key failing with an error instead of creating and deduplicating the runs ([#4271](https://github.com/triggerdotdev/trigger.dev/pull/4271)) - Speed up idempotency checks on `batchTrigger` calls that use idempotency keys. Large batches against a task with a big run history no longer degrade to multi-second lookups. ([#4255](https://github.com/triggerdotdev/trigger.dev/pull/4255)) - The "Preview branches" usage on the Limits page now counts only preview branches. ([#4283](https://github.com/triggerdotdev/trigger.dev/pull/4283)) - Avoid opening a redundant database connection pool when the legacy and primary databases are the same server, preventing connection usage from doubling. ([#4253](https://github.com/triggerdotdev/trigger.dev/pull/4253)) - Fix pages occasionally loading unstyled or failing to load during a deploy. The dashboard now reloads automatically to recover. ([#4282](https://github.com/triggerdotdev/trigger.dev/pull/4282)) <details> <summary>Raw changeset output</summary> # Releases ## @trigger.dev/build@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` ## trigger.dev@4.5.5 ### Patch Changes - Add experimental Node.js 24 and 26 task runtimes. Set `runtime` to `experimental-node-24` or `experimental-node-26` in `trigger.config.ts`. ([#4085](https://github.com/triggerdotdev/trigger.dev/pull/4085)) - Updated dependencies: - `@trigger.dev/core@4.5.5` - `@trigger.dev/build@4.5.5` - `@trigger.dev/schema-to-json@4.5.5` ## @trigger.dev/core@4.5.5 ### Patch Changes - Add experimental Node.js 24 and 26 task runtimes. Set `runtime` to `experimental-node-24` or `experimental-node-26` in `trigger.config.ts`. ([#4085](https://github.com/triggerdotdev/trigger.dev/pull/4085)) - Add `defaultRegion` to the project GET and list API responses; null when unset. ([#4146](https://github.com/triggerdotdev/trigger.dev/pull/4146)) ## @trigger.dev/python@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` - `@trigger.dev/build@4.5.5` - `@trigger.dev/sdk@4.5.5` ## @trigger.dev/react-hooks@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` ## @trigger.dev/redis-worker@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` ## @trigger.dev/rsc@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` ## @trigger.dev/schema-to-json@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` ## @trigger.dev/sdk@4.5.5 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.5` </details> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Server Changes
This directory tracks changes to server-only components (webapp, supervisor, etc.) that are not captured by changesets. Changesets only track published npm packages — server changes would otherwise go undocumented.
When to add a file
Server-only PRs: If your PR only changes apps/webapp/, apps/supervisor/, or other server components (and does NOT change anything in packages/), add a .server-changes/ file.
Mixed PRs (both packages and server): Just add a changeset as usual. No .server-changes/ file needed — the changeset covers it.
Package-only PRs: Just add a changeset as usual.
File format
Create a markdown file with a descriptive name:
.server-changes/fix-batch-queue-stalls.md
With this format:
---
area: webapp
type: fix
---
Speed up batch queue processing by removing stalls and fixing retry race
Fields
- area (required):
webapp|supervisor - type (required):
feature|fix|improvement|breaking
Description
The body text (below the frontmatter) is a one-line description of the change. Keep it concise — it will appear in release notes.
Writing guidance
These entries are public-facing - they ship verbatim in user-visible release notes. A few rules to keep them clean:
- Write for the user, not the reviewer. Lead with what the user notices or has to do. If a reader who doesn't know the codebase can't tell what changed for them, rewrite it.
- One sentence is usually enough. The body is the bullet in the changelog. If you need a paragraph, you're probably describing the implementation rather than the change.
- Describe behavior, not implementation. Skip internal scopes, middleware names, library specifics, framework internals. Users care about what's different for them, not how it's wired.
- Never name internal tools or infra. Observability stacks, internal services, infra components, monitoring backends, CI surfaces, AWS specifics - none of these belong in user-facing notes.
Before / after:
- ❌ "The image verification step now parses the manifest's layer media types and returns a new result the finalizer rejects." (describes the wiring; a user can't act on it)
- ✅ "Deploying with an outdated CLI could produce an image that fails to start on every run. These deploys are now stopped before going live, with a message asking you to upgrade the CLI and re-deploy." (what the user sees and does)
Lifecycle
- Engineer adds a
.server-changes/file in their PR - Files accumulate on
mainas PRs merge - The changeset release PR includes these in its summary
- After the release merges, CI cleans up the consumed files
Examples
New feature:
---
area: webapp
type: feature
---
TRQL query language and the Query page
Bug fix:
---
area: webapp
type: fix
---
Fix schedule limit counting for orgs with custom limits
Improvement:
---
area: webapp
type: improvement
---
Use the replica for API auth queries to reduce primary load