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.changeset/little-birds-appear.md

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+"@trigger.dev/sdk": patch
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+Removes the `releaseConcurrencyOnWaitpoint` option on queues and the `releaseConcurrency` option on various wait functions. Replaced with the following default behavior:
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+- Concurrency is never released when a run is first blocked via a waitpoint, at either the env or queue level.
+- Concurrency is always released when a run is checkpointed and shutdown, at both the env and queue level.
+
+Additionally, environment concurrency limits now have a new "Burst Factor", defaulting to 2.0x. The "Burst Factor" allows the environment-wide concurrency limit to be higher than any individual queue's concurrency limit. For example, if you have an environment concurrency limit of 100, and a Burst Factor of 2.0x, then you can execute up to 200 runs concurrently, but any one task/queue can still only execute 100 runs concurrently.
+
+We've done some work cleaning up the run statuses. The new statuses are:
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+- `PENDING_VERSION`: Task is waiting for a version update because it cannot execute without additional information (task, queue, etc.)
+- `QUEUED`: Task is waiting to be executed by a worker
+- `DEQUEUED`: Task has been dequeued and is being sent to a worker to start executing.
+- `EXECUTING`: Task is currently being executed by a worker
+- `WAITING`: Task has been paused by the system, and will be resumed by the system
+- `COMPLETED`: Task has been completed successfully
+- `CANCELED`: Task has been canceled by the user
+- `FAILED`: Task has failed to complete, due to an error in the system
+- `CRASHED`: Task has crashed and won't be retried, most likely the worker ran out of resources, e.g. memory or storage
+- `SYSTEM_FAILURE`: Task has failed to complete, due to an error in the system
+- `DELAYED`: Task has been scheduled to run at a specific time
+- `EXPIRED`: Task has expired and won't be executed
+- `TIMED_OUT`: Task has reached it's maxDuration and has been stopped
+
+We've removed the following statuses:
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+- `WAITING_FOR_DEPLOY`: This is no longer used, and is replaced by `PENDING_VERSION`
+- `FROZEN`: This is no longer used, and is replaced by `WAITING`
+- `INTERRUPTED`: This is no longer used
+- `REATTEMPTING`: This is no longer used, and is replaced by `EXECUTING`
+
+We've also added "boolean" helpers to runs returned via the API and from Realtime:
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+- `isQueued`: Returns true when the status is `QUEUED`, `PENDING_VERSION`, or `DELAYED`
+- `isExecuting`: Returns true when the status is `EXECUTING`, `DEQUEUED`. These count against your concurrency limits.
+- `isWaiting`: Returns true when the status is `WAITING`. These do not count against your concurrency limits.
+- `isCompleted`: Returns true when the status is any of the completed statuses.
+- `isCanceled`: Returns true when the status is `CANCELED`
+- `isFailed`: Returns true when the status is any of the failed statuses.
+- `isSuccess`: Returns true when the status is `COMPLETED`
+
+This change adds the ability to easily detect which runs are being counted against your concurrency limit by filtering for both `EXECUTED` or `DEQUEUED`.