The evidence trail
Sources you can follow.
Primary documentation and inspected code, checked 2026-10-23. Snapshot labels distinguish release names from moving documentation. No historical snapshot reports are republished here.
Unknown is a first-class state.
Feature absence is not inferred from silence. Where a review did not establish support, the catalogue says “Not verified.” Source summaries are paraphrases, not upstream endorsements.
Absurd
0.5.1 · source snapshot ·3cfc64f10b0b- Pinned sourceArchitecture and SDKs ↗
- Pinned sourceCheckpoints, claims, retries and external idempotency ↗
- Pinned sourceConnection-bound SDK operations ↗
- Pinned sourceExternal cron scheduling pattern ↗
- Pinned sourceSchema installation and migration ↗
- Pinned sourceRequirements and worker example ↗
- Pinned sourceHabitat dashboard ↗
- Pinned sourceStored-procedure implementation ↗
- Pinned sourceWorkflow code changes and checkpoint compatibility ↗
- Primary documentationInspected source revision ↗
- Pinned sourceLicense at inspected source ↗
- Primary releaseVerified latest release record ↗
Awa
0.7.0-alpha.1 · development main ·b9341ae5718f- Pinned sourceInspected development revision ↗
- Pinned sourceTransactional enqueue and external effects ↗
- Pinned sourceCaller-owned enqueue executor ↗
- Pinned sourceGuarded finalization and recovery ↗
- Pinned sourceQueue controls, schedules and uniqueness ↗
- Pinned sourceClaim WAL durability ↗
- Pinned sourcePostgres deployment ↗
- Pinned sourceOperational interface ↗
- Pinned sourceAttempt identity and stale writes ↗
- Pinned sourcePeriodic scheduling ↗
- Pinned sourceUnique jobs ↗
- Pinned sourceCaller-owned finalization design status ↗
GoodJob
4.22.1 · main ·1d73ef089e8b- Primary documentationInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceScheduling ↗
- Pinned sourceScheduling ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceOperator interface ↗
- Pinned sourceClaims and concurrency ↗
- Pinned sourceLicense at inspected source ↗
- Pinned sourceSnapshot commit and date ↗
- Primary documentationPublished v4.22.1 release ↗
Graphile Worker
v0.18.0 · source snapshot ·7a2405bdd3b6- Pinned sourceGraphile Worker introduction ↗
- Pinned sourceSQL enqueue API ↗
- Pinned sourceJob key semantics ↗
- Pinned sourceRecurring task scheduler ↗
- Pinned sourceRuntime and database requirements ↗
- Pinned sourceFailures and crash recovery ↗
- Pinned sourceWorker Pro scope ↗
- Pinned sourceCurrent claim SQL ↗
- Pinned sourceTask executor guidance ↗
- Primary documentationInspected source revision ↗
- Pinned sourceLicense at inspected source ↗
- Primary releaseVerified latest release record ↗
Oban
2.24.2 · source snapshot ·722f020c0fc1- Pinned sourceInspected source revision ↗
- Primary documentationTransaction integration ↗
- Primary documentationRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Primary documentationRecovery and retries ↗
- Primary documentationUniqueness scope ↗
- Primary documentationInstallation and prerequisites ↗
- Primary documentationOperator interface ↗
- Primary documentationOperator interface ↗
- Primary documentationOperator interface ↗
- Primary documentationOperator interface ↗
- Pinned sourceClaims and concurrency ↗
- Primary documentationOpen source and commercial scope ↗
- Pinned sourceLicense at inspected source ↗
- Primary metadataVersion / source metadata ↗
- Primary metadataVersion / source metadata ↗
- Pinned sourceQualify abandoned-work rescue configuration ↗
- Pinned sourceQualify abandoned-work rescue configuration ↗
- Primary releaseVerified version metadata ↗
pg-boss
12.38.0 · source snapshot ·d4400859eed2- Pinned sourceCurrent delivery contract ↗
- Pinned sourceQueue policies, retry and recovery ↗
- Pinned sourceORM transaction adapters ↗
- Pinned sourceWorker concurrency and transactional handlers ↗
- Pinned sourceCron and RRULE scheduling ↗
- Pinned sourceFirst-party dashboard ↗
- Pinned sourceDatabase install ↗
- Pinned sourcePackage version and Node requirement ↗
- Pinned sourceDatabase requirements ↗
- Primary documentationInspected source revision ↗
- Pinned sourceLicense at inspected source ↗
- Primary releaseVerified latest release record ↗
PGMQ
v1.13.1 · source snapshot ·8efb078dbe7a- Pinned sourceInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceScheduling ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceOperator interface ↗
- Pinned sourceClaims and concurrency ↗
- Pinned sourceOpen source and commercial scope ↗
- Pinned sourceLicense at inspected source ↗
- Primary metadataVersion / source metadata ↗
- Primary metadataVersion / source metadata ↗
- Primary releaseVerified version metadata ↗
PgQ
v3.5.2 · source snapshot ·be3d2cee3fc7- Pinned sourceInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Primary documentationInstallation and prerequisites ↗
- Pinned sourceOpen source and commercial scope ↗
- Pinned sourceLicense at inspected source ↗
- Primary metadataVersion / source metadata ↗
- Primary metadataVersion / source metadata ↗
- Primary releaseVerified version metadata ↗
PgQue
v0.2.2 · source snapshot ·4a522584a112- Pinned sourceInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceScheduling ↗
- Pinned sourceScheduling ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceOperator interface ↗
- Pinned sourceClaims and concurrency ↗
- Pinned sourceClaims and concurrency ↗
- Pinned sourceOpen source and commercial scope ↗
- Pinned sourceLicense at inspected source ↗
- Primary metadataVersion / source metadata ↗
- Primary metadataVersion / source metadata ↗
- Pinned sourceReplace autoattached refs with early-stage status source ↗
- Pinned sourceUse exact whole-batch receive ceiling source ↗
- Pinned sourceUse exact ownership statement ↗
- Primary releaseVerified version metadata ↗
PotatoQ
26.1a8 (alpha) ·3b493e3ca62f- Primary documentationInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceScheduling ↗
- Pinned sourceScheduling ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceOperator interface ↗
- Pinned sourceClaims and concurrency ↗
- Pinned sourceClaims and concurrency ↗
- Pinned sourceLicense at inspected source ↗
- Pinned sourceDelivery and external-effect boundary ↗
- Pinned sourceDelivery and external-effect boundary ↗
- Primary documentationCanonical project link from official docs ↗
- Pinned sourceRate limiting implementation status ↗
- Pinned sourceRate limiting implementation status ↗
- Pinned sourceExplicit alpha status ↗
- Pinned sourcePackage version and classifiers ↗
- Pinned sourcePostgres schema created by broker ↗
Procrastinate
3.10.0 · source snapshot ·e049c4d74cde- Pinned sourceRuntime overview ↗
- Pinned sourceExternal transaction connections ↗
- Pinned sourceRetry strategies ↗
- Pinned sourceExplicit stalled-job recovery ↗
- Pinned sourceExecution lock scope ↗
- Pinned sourceQueueing locks ↗
- Pinned sourceDelayed tasks ↗
- Pinned sourcePeriodic tasks ↗
- Pinned sourceWorker concurrency ↗
- Pinned sourceClaim and schema SQL ↗
- Pinned sourceDjango admin models ↗
- Pinned sourceTask retry defaults ↗
- Primary documentationInspected source revision ↗
- Pinned sourceLicense at inspected source ↗
- Primary releaseVerified latest release record ↗
Que
2.4.1 · source ·57cfa4a4d4ad- Primary documentationInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceScheduling ↗
- Pinned sourceScheduling ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceLicense at inspected source ↗
- Pinned sourceSeparate direct locking connection ↗
- Pinned sourceHigh-churn table vacuum requirements ↗
- Pinned sourceSource version constant ↗
- Pinned sourceSource changelog ↗
- Primary documentationLatest-release endpoint checked ↗
- Pinned sourceCore queue schema migration ↗
River
Go v0.49.0 · source snapshot ·86f19649c873- Pinned sourceInspected source revision ↗
- Primary documentationTransaction integration ↗
- Primary documentationTransaction integration ↗
- Pinned sourceTransaction integration ↗
- Primary documentationRecovery and retries ↗
- Primary documentationRecovery and retries ↗
- Primary documentationScheduling ↗
- Primary documentationScheduling ↗
- Primary documentationUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Primary documentationOperator interface ↗
- Pinned sourceClaims and concurrency ↗
- Primary documentationClaims and concurrency ↗
- Primary documentationClaims and concurrency ↗
- Primary documentationOpen source and commercial scope ↗
- Pinned sourceLicense at inspected source ↗
- Primary metadataVersion / source metadata ↗
- Primary metadataVersion / source metadata ↗
- Pinned sourceAdd language-client scope qualification ↗
- Pinned sourceAdd language-client scope qualification ↗
- Pinned sourceAdd language-client scope qualification ↗
- Pinned sourceAdd language-client scope qualification ↗
- Pinned sourceAvoid implying only Go has a commercial implementation ↗
- Primary releaseVerified version metadata ↗
Solid Queue
1.7.0 · main ·73602fe39b95- Primary documentationInspected source revision ↗
- Pinned sourceTransaction integration ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceRecovery and retries ↗
- Pinned sourceScheduling ↗
- Pinned sourceScheduling ↗
- Pinned sourceUniqueness scope ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceInstallation and prerequisites ↗
- Pinned sourceOperator interface ↗
- Pinned sourceOperator interface ↗
- Pinned sourceLicense at inspected source ↗
- Pinned sourceSnapshot commit and date ↗
- Primary documentationPublished v1.7.0 release ↗
- Pinned sourceInstalled queue schema ↗