ChangeLog

Changelog

All notable changes to this project will be documented in this file. See standard-version for commit guidelines.

5.3.2 (2026-08-28)

⚠ BREAKING CHANGES

• for consumers that call Object.prototype methods directly on pool.options (e.g. pool.options.hasOwnProperty(...)).

• fix: use sanitized options for resourceLimits validation

• fix: sanitize run/close options with withNullPrototype

Use the existing withNullPrototype helper instead of getOwn; address feedback from @metcoder95

• fix: avoid re-linking Object.prototype in Piscina constructor

(cherry picked from commit bebbda255c2981cecddd36b171b94be2fd41c9a6)

• Merge commit from fork (2f69f67)

5.3.1 (2026-08-21)

5.3.0 (2026-07-19)

Features

• add stricterFIFO option for queue fairness (#1100) (#1113) (8b79055)

5.2.0 (2026-06-12)

Features

• Add idleThreads getter (#1059) (6beabe0)

Bug Fixes

• eagerly spawn workers up to maxThreads on cold-pool burst (#1043) (779c640)
• include skipQueue in queueSize calculation (#1030) (b7d4d61)
• interface name and add missing curly brace (#951) (8cd51f2)
• onWorkerMessage gets skipped in Jest environment (#968) (54de192)

5.1.4 (2025-11-07)

Bug Fixes

• add provenance (#885) (ca951fe)
• standardize normalize calculation of stddev (#924) (260a87c)

5.1.3 (2025-07-09)

Features

• offload drain events to microtask (#835) (76fe7a8)

5.1.2 (2025-06-26)

5.1.1 (2025-06-19)

Bug Fixes

• prevent race condition in idle worker cleanup (#818) (cafae5d)

5.1.0 (2025-06-15)

Features

• add explicit resource management support (#810) (d625bba)

Bug Fixes

• #805: Fix handling of aborted tasks (#807) (5608520)

5.0.0 (2025-05-02)

⚠ BREAKING CHANGES

• drop v18 (#782)

• drop v18 (#782) (7a87d6b)

5.0.0-alpha.2 (2025-03-16)

Features

• Allow long-running threads (#757) (f0f4fd3)

5.0.0-alpha.1 (2025-01-10)

⚠ BREAKING CHANGES

• #305: Expose new PiscinaHistogram abstraction (#723)

Features

• #305: Expose new PiscinaHistogram abstraction (#723) (86d736c), closes #305

5.0.0-alpha.0 (2024-12-04)

Features

• Custom Balancer (#590) (5c42b28)
• support Atomics.waitAsync (#687) (9c5a19e)
• use @napi-rs/nice to support Windows (#655) (c567394)

Bug Fixes

• adjust docusaurus (5c3d2c9)

4.6.1 (2024-06-26)

4.6.0 (2024-06-18)

Features

• expose task interface (#565) (285aa82)

Bug Fixes

• close pool with minThreads=0 (#584) (776bacb)

4.5.1 (2024-05-22)

Bug Fixes

• support nodejs v16.x again (#572) (d50391f)

4.5.0 (2024-05-20)

Features

• allow generic when creating Piscina (#569) (108440c)
• Use fixed queue (#555) (8afa70f)
• use os.availableConcurrency (#556) (d1fbba2)

4.4.0 (2024-02-28)

Features

• add option to disable run/wait time recording (#518) (4a94cee)
• allow named import usage (#517) (6a7c6e1)

4.3.2 (2024-02-16)

Bug Fixes

• #513: forward errors correctly to Piscina (#514) (6945d21), closes #513

4.3.1 (2024-01-30)

Bug Fixes

• #491: out of bounds histogram value (#496) (0b4eada), closes #491

4.3.0 (2024-01-16)

Features

• use native Node.js histogram support (#482) (aa5b140)

4.2.1 (2023-12-13)

Bug Fixes

• default minThreads with odd CPU count (#457) (f4edf87)

4.2.0 (2023-11-19)

Features

• Add Piscina#close API (#396) (5378e4c)

Bug Fixes

• add signal reason support (#403) (66809f9)
• do not re-create threads when calling .destory() (#430) (ec21ff2)
• migrate to EventEmitterAsyncResource from core (#433) (0a539e2)