## Summary 4 improvements, 5 bug fixes. ## Improvements - Add SDK and API client helpers for run bulk actions. ([#4105](https://github.com/triggerdotdev/trigger.dev/pull/4105)) - Large batch payloads now offload to object storage instead of riding inline in the trigger request. `batchTrigger` and `batchTriggerAndWait` (and the by-id and by-task variants) offload any per-item payload over 128KB before sending, the same way single `trigger` and `triggerAndWait` already do, so a big batch no longer blows past the API body limit. ([#4165](https://github.com/triggerdotdev/trigger.dev/pull/4165)) - Removed internal helpers that were only used by the end-of-life v3 self-hosted compute providers. ([#4194](https://github.com/triggerdotdev/trigger.dev/pull/4194)) - Add an `onEvent` callback to `TriggerChatTransport` / `useTriggerChatTransport` that emits typed lifecycle events for sends, stream connects, first chunk, and turn completion. Send-success metrics, time-to-first-token, and "sent but never answered" watchdogs become a few lines of client code. ([#4187](https://github.com/triggerdotdev/trigger.dev/pull/4187)) ```ts onEvent: (event) => { if (event.type === "message-sent") metrics.timing("chat.send_ms", event.durationMs); if (event.type === "first-chunk") metrics.timing("chat.ttft_ms", event.sinceSendMs ?? 0); }, ``` ## Bug fixes - fix(cli): honor the MCP server's `--dev-only` flag ([#4199](https://github.com/triggerdotdev/trigger.dev/pull/4199)) - Fix chat turns that throw (for example from an `onTurnStart` hook) leaking their message listener, which lost or duplicated messages sent during later turns. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Fix `chat.agent` and `chat.createSession` permanently dropping user messages when several arrived during a single turn: every buffered message is now dispatched as its own turn instead of only the first. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Fix chat continuation runs replaying already-answered messages: turns delivered while the run was suspended now advance the session.in resume cursor, so a new run picks up exactly where the previous one left off. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Fix `chat.createSession` swallowing a message sent shortly after stopping a turn: the turn's message listener now detaches when the stream settles, so those messages run as the next turn. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) <details> <summary>Raw changeset output</summary> # Releases ## @trigger.dev/build@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` ## trigger.dev@4.5.2 ### Patch Changes - fix(cli): honor the MCP server's `--dev-only` flag ([#4199](https://github.com/triggerdotdev/trigger.dev/pull/4199)) - Updated dependencies: - `@trigger.dev/core@4.5.2` - `@trigger.dev/build@4.5.2` - `@trigger.dev/schema-to-json@4.5.2` ## @trigger.dev/core@4.5.2 ### Patch Changes - Add SDK and API client helpers for run bulk actions. ([#4105](https://github.com/triggerdotdev/trigger.dev/pull/4105)) - Large batch payloads now offload to object storage instead of riding inline in the trigger request. `batchTrigger` and `batchTriggerAndWait` (and the by-id and by-task variants) offload any per-item payload over 128KB before sending, the same way single `trigger` and `triggerAndWait` already do, so a big batch no longer blows past the API body limit. ([#4165](https://github.com/triggerdotdev/trigger.dev/pull/4165)) - Removed internal helpers that were only used by the end-of-life v3 self-hosted compute providers. ([#4194](https://github.com/triggerdotdev/trigger.dev/pull/4194)) ## @trigger.dev/python@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` - `@trigger.dev/sdk@4.5.2` - `@trigger.dev/build@4.5.2` ## @trigger.dev/react-hooks@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` ## @trigger.dev/redis-worker@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` ## @trigger.dev/rsc@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` ## @trigger.dev/schema-to-json@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` ## @trigger.dev/sdk@4.5.2 ### Patch Changes - Add SDK and API client helpers for run bulk actions. ([#4105](https://github.com/triggerdotdev/trigger.dev/pull/4105)) - Fix chat turns that throw (for example from an `onTurnStart` hook) leaking their message listener, which lost or duplicated messages sent during later turns. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Fix `chat.agent` and `chat.createSession` permanently dropping user messages when several arrived during a single turn: every buffered message is now dispatched as its own turn instead of only the first. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Fix chat continuation runs replaying already-answered messages: turns delivered while the run was suspended now advance the session.in resume cursor, so a new run picks up exactly where the previous one left off. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Fix `chat.createSession` swallowing a message sent shortly after stopping a turn: the turn's message listener now detaches when the stream settles, so those messages run as the next turn. ([#4176](https://github.com/triggerdotdev/trigger.dev/pull/4176)) - Add an `onEvent` callback to `TriggerChatTransport` / `useTriggerChatTransport` that emits typed lifecycle events for sends, stream connects, first chunk, and turn completion. Send-success metrics, time-to-first-token, and "sent but never answered" watchdogs become a few lines of client code. ([#4187](https://github.com/triggerdotdev/trigger.dev/pull/4187)) ```ts onEvent: (event) => { if (event.type === "message-sent") metrics.timing("chat.send_ms", event.durationMs); if (event.type === "first-chunk") metrics.timing("chat.ttft_ms", event.sinceSendMs ?? 0); }, ``` - Large batch payloads now offload to object storage instead of riding inline in the trigger request. `batchTrigger` and `batchTriggerAndWait` (and the by-id and by-task variants) offload any per-item payload over 128KB before sending, the same way single `trigger` and `triggerAndWait` already do, so a big batch no longer blows past the API body limit. ([#4165](https://github.com/triggerdotdev/trigger.dev/pull/4165)) - Updated dependencies: - `@trigger.dev/core@4.5.2` ## @trigger.dev/plugins@4.5.2 ### Patch Changes - Updated dependencies: - `@trigger.dev/core@4.5.2` </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