Feature matrix

What each feature is, which edition it needs and where it is available. Core runs without a key; Pro needs a JoobQ Pro key (see Licensing). In the language columns, ✓ means the SDK (or the Crystal library) has it and it is tested against a real server in that language; ○ means it is there but not tested in that language yet; – means not available; n/a means the test does not apply to Crystal, which uses the JoobQ libraries directly.

Feature	Edition	Status	Crystal	Python	TypeScript	Ruby	Go	Rust	Java	PHP	.NET	Page
Enqueue a job (one at a time)	Core	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Batch enqueue (enqueue_many, POST /sdk/jobs/batch, up to 500 jobs)	Core	shipped	–	○	○	○	○	○	○	○	○	page
Enqueue without waiting (enqueue_async)	Core	shipped	–	○	○	○	○	○	○	–	○	page
Retries with backoff and the dead letter queue	Core	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Non-retryable errors (straight to the dead letter queue)	Core	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Delayed jobs (delay_ms)	Core	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Run at an absolute time (run_at_ms)	Core	shipped	–	✓	✓	✓	✓	✓	✓	✓	✓	page
Per-job expires_ms and timeout_ms	Core	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Request context and the application container (ctx.app, ctx.context)	Core	shipped	–	✓	✓	✓	✓	✓	✓	✓	✓	page
Unique jobs, while_locked (unique_key + unique_ttl_ms)	Core	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Unique jobs, until_executed (unique_mode)	Pro	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Unique jobs, until_executing (unique_mode)	Pro	shipped	–	○	○	○	○	○	○	○	○	page
Sealed job fields (encrypt_fields, encrypted_property)	Core	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Queue throttling (claim-time rate per queue)	Core	shipped	server	server	server	server	server	server	server	server	server	page
Rate limiting (rate_limit(key, limit, period_ms))	Pro	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Batches with completion callbacks (JoobQPro::Batch)	Pro	shipped	○	–	–	–	–	–	–	–	–	page
Batches with completion callbacks from the SDKs	Pro	coming	–	○	○	○	○	○	○	○	○	page
Dead letters (browse, re-drive, purge, export)	Core	shipped	console	console	console	console	console	console	console	console	console	page
Worker middleware (worker.use(mw))	Core	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Long-poll delivery, leases, ack batching and graceful shutdown	Core	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Pause, resume, clear and concurrency of a queue	Core	shipped	console	console	console	console	console	console	console	console	console	page
Job schedules registered from code (register_schedule, cron or every)	Core	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Job schedules in the console (pause, resume, run now)	Core	shipped	console	console	console	console	console	console	console	console	console	page
Workflow schedules	Pro	shipped	console	console	console	console	console	console	console	console	console	page
Alert rules and notification channels	Pro	shipped	console	console	console	console	console	console	console	console	console	page
Durable workflows conducted by the engine (steps, blueprints)	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Parallel, sequence and after:	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Step retries, timeout_ms, heartbeat_ms, schedule_to_start_ms, non_retryable	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Workflow timeout (blueprint timeout_ms)	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Sagas and compensation	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Signals, signal timeouts and durable timers	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Queries	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Workflow client reads (describe, result, history, query, search attributes)	Pro	shipped	n/a	✓	✓	✓	✓	✓	✓	✓	✓	page
Search attributes (register, set, search)	Pro	shipped	console	console	console	console	console	console	console	console	console	page
Cancel, terminate, re-drive, retry a step, bulk actions	Pro	shipped	console	console	console	console	console	console	console	console	console	page
Event history, retention and the history archive	Pro	shipped	console	console	console	console	console	console	console	console	console	page
Worker build ids (promote, retire, re-pin; admin)	Pro	shipped	○	–	–	–	–	–	–	–	–	page
Continue-as-new, updates, cancellation scopes, replay and migrate (Crystal workflows, console and API)	Pro	shipped	○	–	–	–	–	–	–	–	–	page
Conditional steps (only_if)	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Child workflows	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Continue-as-new	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Compensation on waits, timers and children	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Cancellation scopes (scope, non_cancellable)	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Update handlers and update_workflow	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Change gates (versioning)	Pro	shipped	✓	✓	✓	✓	✓	✓	✓	✓	✓	page
Roles, API tokens and the SDK token	Core	shipped	console	console	console	console	console	console	console	console	console	page
Two-factor authentication and OpenID Connect single sign-on	Core	shipped	console	console	console	console	console	console	console	console	console	page
Audit log	Core	shipped	console	console	console	console	console	console	console	console	console	page
Retention of audit events, dead letters and finished workflows	Core	shipped	server	server	server	server	server	server	server	server	server	page
Prometheus metrics (/metrics)	Core	shipped	server	server	server	server	server	server	server	server	server	page
Several instances and leader leases	Core	shipped	server	server	server	server	server	server	server	server	server	page
Command-line tasks of the self-hosted binary	Core	shipped	server	server	server	server	server	server	server	server	server	page
Deployment licence (402 paid_license_required) and the Pro key	Core	shipped	server	server	server	server	server	server	server	server	server	page

"console" means the feature is used through the JoobQUI console and its API, "server" that it is configured on the server, whatever language the workers are written in.