3 All notable changes to this project will be documented in this file.
5 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
6 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
12 - Ensure pool asynchronous resource properly track tasks execution
14 ## [3.0.10] - 2023-12-08
18 - Add a fastpath when tasks stealing or redistribution is impossible
20 ## [3.0.9] - 2023-11-26
24 - Remove all pool events listener at pool destroying.
25 - Remove all worker node events listener at worker node destroying.
26 - Fix worker node event emitter listeners handling memory leak at pool options runtime change.
28 ## [3.0.8] - 2023-11-25
32 - Ensure continuous tasks stealing on idle start at worker node idling
34 ## [3.0.7] - 2023-11-24
38 - Make continuous tasks stealing start at worker node idling.
40 ## [3.0.6] - 2023-11-24
44 - Ensure pool statuses are checked at initialization, `start()` or `destroy()`.
45 - Ensure pool `ready` event can be emitted after several `start()/destroy()` cycles.
47 ## [3.0.5] - 2023-10-27
51 - Ensure pool `ready` event can be emitted only once.
53 ## [3.0.4] - 2023-10-20
57 - Switch to Bencher for benchmarking: [https://bencher.dev/perf/poolifier](https://bencher.dev/perf/poolifier).
58 - Use builtin retry mechanism in worker choice strategies instead of custom one.
60 ## [3.0.3] - 2023-10-19
64 - Avoid null exception at sending message to worker.
65 - Avoid null exception at checking worker node readiness.
67 ## [3.0.2] - 2023-10-17
71 - Fix race condition at dynamic worker node task assignment and scheduled removal. See issue [#1468](https://github.com/poolifier/poolifier/issues/1468) and [#1496](https://github.com/poolifier/poolifier/issues/1496).
73 ## [3.0.1] - 2023-10-16
77 - Workaround possible race condition at work nodes array element removal and querying. See issue [#1468](https://github.com/poolifier/poolifier/issues/1468).
81 - Switch the worker node eventing code to `EventTarget` API.
83 ## [3.0.0] - 2023-10-08
87 - Remove Node.js 16.x.x (EOL) support.
89 ## [2.7.5] - 2023-10-03
93 - Use `EventEmitterAsyncResource` type from `@types/node` for pool event emitter. TypeScript users will need to update to latest `@types/node` version.
95 ## [2.7.4] - 2023-09-25
99 - Fix source maps (bundler issue).
101 ## [2.7.3] - 2023-09-24
105 - Convert pool event emitter to event emitter async resource.
107 ## [2.7.2] - 2023-09-23
111 - Add source maps to npm package to ease debugging.
115 - Continuous benchmarking versus other worker pools: [https://poolifier.github.io/benchmark](https://poolifier.github.io/benchmark).
117 ## [2.7.1] - 2023-09-20
121 - Ensure worker message listener used one time are removed after usage.
123 ## [2.7.0] - 2023-09-19
127 - Fix task stealing related tasks queue options handling at runtime.
131 - Rename `listTaskFunctions()` to `listTaskFunctionNames()` in pool and worker API.
135 - Add `hasTaskFunction()`, `addTaskFunction()`, `removeTaskFunction()`, `setDefaultTaskFunction()` methods to pool API: [PR #1148](https://github.com/poolifier/poolifier/pull/1148).
136 - Stricter worker constructor arguments validation.
138 ## [2.6.45] - 2023-09-17
142 - Disable publication on GitHub packages registry on release until authentication issue is fixed.
146 - Add `startWorkers` to pool options to whether start the minimum number of workers at pool initialization or not.
147 - Add `start()` method to pool API to start the minimum number of workers.
148 - Add `taskStealing` and `tasksStealingOnPressure` to tasks queue options to whether enable task stealing or not and whether enable tasks stealing under back pressure or not.
149 - Continuous internal benchmarking: [https://poolifier.github.io/benchmark-results/dev/bench](https://poolifier.github.io/benchmark-results/dev/bench).
151 ## [2.6.44] - 2023-09-08
155 - Use a dedicated PAT to publish on GitHub packages registry.
159 - Publish on GitHub packages registry on release.
163 - Switch from rome to biome: [PR #1128](https://github.com/poolifier/poolifier/pull/1128).
165 ## [2.6.43] - 2023-09-08
169 - Publish on GitHub packages registry on release.
173 - Switch from rome to biome: [PR #1128](https://github.com/poolifier/poolifier/pull/1128).
175 ## [2.6.42] - 2023-09-06
179 - Optimize hot code paths implementation: avoid unnecessary branching, add and use optimized helpers (min, max), use reduce() array helper, ...
181 ## [2.6.41] - 2023-09-03
185 - Optimize worker choice strategies implementation.
187 ## [2.6.40] - 2023-09-01
191 - Do not pre-choose in WRR worker choice strategy to avoid bias.
192 - Avoid array out of bound in worker choice strategies after worker node removal.
194 ## [2.6.39] - 2023-08-30
198 - Fix race condition in worker choice strategies at worker node info querying while not yet initialized.
200 ## [2.6.38] - 2023-08-30
204 - Bundle typescript types declaration into one file.
208 - Improve interleaved weighted round robin worker choice strategy implementation.
210 ## [2.6.37] - 2023-08-28
214 - Ensure unused worker usage statistics are deleted at runtime.
218 - Rename worker choice strategy options `choiceRetries` to `retries`.
219 - Avoid unnecessary branching in worker choice strategies.
221 ## [2.6.36] - 2023-08-27
225 - Fix pool `execute()` arguments check.
229 - Make continuous tasks stealing algorithm less aggressive.
230 - Fine tune tasks stealing algorithm under back pressure.
232 ## [2.6.35] - 2023-08-25
236 - Don't account worker usage statistics for tasks that have failed.
237 - Fix pool information runtime and wait time median computation.
241 - Update simple moving average implementation to use a circular buffer.
242 - Update simple moving median implementation to use a circular buffer.
243 - Account for stolen tasks in worker usage statistics and pool information.
247 - Continuous tasks stealing algorithm.
249 ## [2.6.34] - 2023-08-24
253 - Avoid cascading tasks stealing under back pressure.
257 - Add fastpath to queued tasks rescheduling.
259 ## [2.6.33] - 2023-08-24
263 - Fix queued tasks rescheduling.
267 - Rename tasks queue options `queueMaxSize` to `size`.
271 - Task stealing scheduling algorithm if tasks queueing is enabled.
273 ## [2.6.32] - 2023-08-23
277 - Ensure no task can be executed when the pool is destroyed.
281 - Add `queueMaxSize` option to tasks queue options.
282 - Add O(1) deque implementation implemented with doubly linked list and use it for tasks queueing.
283 - Add tasks stealing algorithm when a worker node queue is back pressured if tasks queueing is enabled.
285 ## [2.6.31] - 2023-08-20
289 - Fix worker choice strategy retries mechanism in some edge cases.
293 - Make orthogonal worker choice strategies tasks distribution and created dynamic worker usage.
294 - Remove the experimental status of the `LEAST_ELU` worker choice strategy.
296 ## [2.6.30] - 2023-08-19
300 - Ensure pool event `backPressure` is emitted.
301 - Ensure pool event `full` is emitted only once.
302 - Ensure worker node cannot be instantiated without proper arguments.
304 ## [2.6.29] - 2023-08-18
308 - Fix race condition between readiness and task functions worker message handling at startup.
309 - Fix duplicate task function worker usage statistics computation per task function.
310 - Update task function worker usage statistics if and only if there's at least two different task functions.
311 - Fix race condition at task function worker usage executing task computation leading to negative value.
315 - Add back pressure detection on the worker node queue. Event `backPressure` is emitted when all worker node queues are full (worker node queue size >= poolMaxSize^2).
316 - Use back pressure detection in worker choice strategies.
317 - Add worker choice strategies retries mechanism if no worker is eligible.
319 ## [2.6.28] - 2023-08-16
323 - Ensure pool workers are properly initialized.
327 - HTTP server pool examples: express-cluster, express-hybrid.
331 - Remove now useless branching in worker hot code path.
333 ## [2.6.27] - 2023-08-15
337 - Add `KillHandler` type definition to exported types.
341 - Add `destroy` event to pool API.
343 ## [2.6.26] - 2023-08-15
347 - Add kill handler to worker options allowing to execute custom code when worker is killed.
348 - Add `listTaskFunctions()` method to pool API.
349 - SMTP client pool example: nodemailer.
351 ## [2.6.25] - 2023-08-13
355 - HTTP server pool examples: fastify-cluster, fastify-hybrid.
356 - WebSocket server pool examples: ws-cluster, ws-hybrid.
358 ## [2.6.24] - 2023-08-12
362 - Add array of transferable objects to the `execute()` method arguments.
363 - WebSocket server pool examples: ws-worker_threads.
365 ## [2.6.23] - 2023-08-11
369 - Fix pool busyness semantic when tasks queueing is enabled: the pool is busy when the number of executing tasks on each worker has reached the maximum tasks concurrency per worker.
373 - HTTP client pool examples: fetch, node-fetch and axios with multiple task functions.
374 - HTTP server pool examples: express-worker_threads, fastify-worker_threads.
376 ## [2.6.22] - 2023-08-10
380 - Add missing `types` field to package.json `exports`.
384 - Structure markdown documentation (PR #811).
386 ## [2.6.21] - 2023-08-03
390 - Improve code documentation.
391 - Code refactoring and cleanup for better maintainability and readability.
393 ## [2.6.20] - 2023-07-21
397 - Fix queued tasks redistribution on error task execution starvation.
398 - Ensure tasks queueing per worker condition is untangled from the pool busyness semantic.
402 - Drastically reduce lookups by worker in the worker nodes.
404 ## [2.6.19] - 2023-07-20
408 - Dedicated internal communication channel for worker_threads pools.
410 ## [2.6.18] - 2023-07-19
414 - Code refactoring and cleanup for better maintainability and readability. Bundle size is a bit smaller.
416 ## [2.6.17] - 2023-07-16
420 - Add `listTaskFunctions()` method to worker API.
422 ## [2.6.16] - 2023-07-12
426 - Fix pool startup detection.
427 - Fix worker task functions handling.
429 ## [2.6.15] - 2023-07-11
433 - Take into account worker node readiness in worker choice strategies.
435 ## [2.6.14] - 2023-07-10
439 - Fix task function statistics tracking.
441 ## [2.6.13] - 2023-07-10
445 - Add per task function statistics tracking.
446 - Add public methods to manipulate the worker task functions at runtime.
448 ## [2.6.12] - 2023-07-09
452 - Workaround import issue with `node:os` module in node 16.x.x.
454 ## [2.6.11] - 2023-07-09
458 - Fix pool readiness semantic.
460 ## [2.6.10] - 2023-07-08
464 - Ensure workers are not recreated on error at pool startup.
468 - Add `ready` and `strategy` fields to pool information.
469 - Add pool event `ready` to notify when the number of workers created in the pool has reached the maximum size expected and are ready.
470 - Add dynamic pool sizing checks.
472 ## [2.6.9] - 2023-07-07
476 - Recreate the right worker type on uncaught exception.
480 - Add minimum and maximum to internal measurement statistics.
481 - Add `runTime` and `waitTime` to pool information.
482 - Check worker inactive time only on dynamic worker.
484 ## [2.6.8] - 2023-07-03
488 - Brown paper bag release to fix version handling in pool information.
490 ## [2.6.7] - 2023-07-03
494 - Ensure worker queued tasks at error are reassigned to other pool workers.
498 - Add pool `utilization` ratio to pool information.
499 - Add `version` to pool information.
500 - Add worker information to worker nodes.
502 ## [2.6.6] - 2023-07-01
506 - Add safe helper `availableParallelism()` to help sizing the pool.
510 - Ensure message handler is only registered in worker.
512 ## [2.6.5] - 2023-06-27
516 - Cluster pools tasks execution are not working by using ESM files extension: https://github.com/poolifier/poolifier/issues/782
520 - Artificial version bump to 2.6.5 to workaround publication issue.
521 - Ensure cluster pool `destroy()` gracefully shutdowns worker's server.
522 - Ensure pool event is emitted before task error promise rejection.
523 - Fix queued tasks count computation.
527 - Remove unneeded worker_threads worker `MessageChannel` internal usage for IPC.
529 ## [2.6.4] - 2023-06-27
533 - Cluster pools tasks execution are not working by using ESM files extension: https://github.com/poolifier/poolifier/issues/782
537 - Ensure cluster pool `destroy()` gracefully shutdowns worker's server.
538 - Ensure pool event is emitted before task error promise rejection.
539 - Fix queued tasks count computation.
543 - Remove unneeded worker_threads worker `MessageChannel` internal usage for IPC.
545 ## [2.6.3] - 2023-06-19
549 - Ensure no tasks are queued when trying to soft kill a dynamic worker.
550 - Update strategies internals after statistics computation.
554 - Optimize O(1) queue implementation.
556 ## [2.6.2] - 2023-06-12
560 - Fix new worker use after creation in dynamic pool given the current worker choice strategy.
562 ## [2.6.1] - 2023-06-10
566 - Add worker choice strategy documentation: [README.md](./docs/worker-choice-strategies.md).
570 - Fix average statistics computation: ensure failed tasks are not accounted.
572 ## [2.6.0] - 2023-06-09
576 - Add `LEAST_ELU` worker choice strategy (experimental).
577 - Add tasks ELU instead of runtime support to `FAIR_SHARE` worker choice strategy.
581 - Refactor pool worker node usage internals.
582 - Breaking change: refactor worker choice strategy statistics requirements: the syntax of the worker choice strategy options has changed.
583 - Breaking change: pool information `info` property object fields have been renamed.
587 - Fix wait time accounting.
588 - Ensure worker choice strategy `LEAST_BUSY` accounts also tasks wait time.
589 - Ensure worker choice strategy `LEAST_USED` accounts also queued tasks.
591 ## [2.5.4] - 2023-06-07
595 - Add Event Loop Utilization (ELU) statistics to worker tasks usage.
599 - Compute statistics at the worker level only if needed.
600 - Add `worker_threads` options to thread pool options.
604 - Make the `LEAST_BUSY` strategy only relies on task runtime.
606 ## [2.5.3] - 2023-06-04
610 - Refine pool information content.
611 - Limit pool internals public exposure.
613 ## [2.5.2] - 2023-06-02
617 - Add `taskError` pool event for task execution error.
618 - Add pool information `info` property to pool.
619 - Emit pool information on `busy` and `full` pool events.
621 ## [2.5.1] - 2023-06-01
625 - Add pool option `restartWorkerOnError` to restart worker on uncaught error. Default to `true`.
626 - Add `error` pool event for uncaught worker error.
628 ## [2.5.0] - 2023-05-31
632 - Switch pool event emitter to `EventEmitterAsyncResource`.
633 - Add tasks wait time accounting in per worker tasks usage.
634 - Add interleaved weighted round robin `INTERLEAVED_WEIGHTED_ROUND_ROBIN` worker choice strategy (experimental).
638 - Renamed worker choice strategy `LESS_BUSY` to `LEAST_BUSY` and `LESS_USED` to `LEAST_USED`.
640 ## [2.4.14] - 2023-05-09
644 - Ensure no undefined task runtime can land in the tasks history.
645 - Fix median computation implementation once again.
649 - Unit tests for median and queue implementations.
651 ## [2.4.13] - 2023-05-08
655 - Fix worker choice strategy options validation.
656 - Fix fair share worker choice strategy internals update: ensure virtual task end timestamp is computed at task submission.
658 ## [2.4.12] - 2023-05-06
662 - Support multiple task functions per worker.
663 - Add custom worker weights support to worker choice strategies options.
667 - Use O(1) queue implementation for tasks queueing.
671 - Fix median computation implementation.
672 - Fix fair share worker choice strategy internals update.
674 ## [2.4.11] - 2023-04-23
678 - Optimize free worker finding in worker choice strategies.
680 ## [2.4.10] - 2023-04-15
684 - Fix typescript type definition for task function: ensure the input data is optional.
685 - Fix typescript type definition for pool execute(): ensure the input data is optional.
687 ## [2.4.9] - 2023-04-15
691 - Add tasks queue enablement runtime setter to pool.
692 - Add tasks queue options runtime setter to pool.
693 - Add worker choice strategy options runtime setter to pool.
697 - Remove the tasks queuing experimental status.
701 - Fix task function type definition and validation.
702 - Fix worker choice strategy options handling.
704 ## [2.4.8] - 2023-04-12
708 - Fix message between main worker and worker type definition for tasks.
709 - Fix code documentation.
711 ## [2.4.7] - 2023-04-11
715 - Add worker tasks queue options to pool options.
719 - Fix missing documentation.
721 ## [2.4.6] - 2023-04-10
725 - Ensure one task at a time is executed per worker with tasks queueing enabled.
726 - Properly count worker executing tasks with tasks queueing enabled.
728 ## [2.4.5] - 2023-04-09
732 - Use monotonic high resolution timer for worker tasks runtime.
733 - Add worker tasks median runtime to statistics.
734 - Add worker tasks queue (experimental).
736 ## [2.4.4] - 2023-04-07
740 - Add `PoolEvents` enumeration and `PoolEvent` type.
744 - Destroy worker only on alive check.
746 ## [2.4.3] - 2023-04-07
750 - Fix typedoc generation with inheritance.
752 ## [2.4.2] - 2023-04-06
756 - Add `full` event to dynamic pool.
757 - Keep worker choice strategy in memory for conditional reuse.
761 - Fix possible negative worker key at worker removal in worker choice strategies.
763 ## [2.4.1] - 2023-04-05
767 - Optimize worker choice strategy for dynamic pool.
771 - Ensure dynamic pool does not alter worker choice strategy expected behavior.
773 ## [2.4.0] - 2023-04-04
777 - Add `LESS_BUSY` worker choice strategy.
781 - Optimize worker storage in pool.
782 - Optimize worker alive status check.
783 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
784 - Optimize `LESS_USED` worker choice strategy.
785 - Update benchmark versus external threads pools.
786 - Optimize tasks usage statistics requirements for worker choice strategy.
790 - Ensure trimmable characters are checked at pool initialization.
791 - Fix message id integer overflow.
792 - Fix pool worker removal in worker choice strategy internals.
793 - Fix package publication with pnpm.
795 ## [2.4.0-3] - 2023-04-04
799 - Add `LESS_BUSY` worker choice strategy.
803 - Optimize worker storage in pool.
804 - Optimize worker alive status check.
805 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
806 - Optimize `LESS_USED` worker choice strategy.
807 - Update benchmark versus external threads pools.
811 - Ensure trimmable characters are checked at pool initialization.
812 - Fix message id integer overflow.
813 - Fix pool worker removal in worker choice strategy internals.
814 - Fix package publication with pnpm.
816 ## [2.4.0-2] - 2023-04-03
820 - Add `LESS_BUSY` worker choice strategy.
824 - Optimize worker storage in pool.
825 - Optimize worker alive status check.
826 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
827 - Optimize `LESS_USED` worker choice strategy.
831 - Ensure trimmable characters are checked at pool initialization.
832 - Fix message id integer overflow.
833 - Fix pool worker removal in worker choice strategy internals.
834 - Fix package publication with pnpm.
836 ## [2.4.0-1] - 2023-04-03
840 - Add `LESS_BUSY` worker choice strategy.
844 - Optimize worker storage in pool.
845 - Optimize worker alive status check.
846 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
847 - Optimize `LESS_USED` worker choice strategy.
851 - Ensure trimmable characters are checked at pool initialization.
852 - Fix message id integer overflow.
853 - Fix pool worker removal in worker choice strategy internals.
855 ## [2.4.0-0] - 2023-04-03
859 - Add `LESS_BUSY` worker choice strategy.
863 - Optimize worker storage in pool.
864 - Optimize worker alive status check.
865 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
866 - Optimize `LESS_USED` worker choice strategy.
870 - Ensure trimmable characters are checked at pool initialization.
871 - Fix message id integer overflow.
872 - Fix pool worker removal in worker choice strategy internals.
874 ## [2.3.10] - 2023-03-18
878 - Fix package.json `exports` syntax for ESM and CommonJS.
882 - Permit SemVer pre-release publication.
884 ## [2.3.10-2] - 2023-03-18
888 - Fix package.json `exports` syntax for ESM and CommonJS.
890 ## [2.3.10-1] - 2023-03-18
894 - Permit SemVer pre-release publication.
896 ## [2.3.10-0] - 2023-03-18
900 - Fix package.json `exports` syntax for ESM and CommonJS.
902 ## [2.3.9] - 2023-03-18
906 - Introduce ESM module support along with CommonJS one.
910 - Fix brown paper bag bug referencing the same object literal.
912 ## [2.3.8] - 2023-03-18
916 - Switch internal benchmarking code to benny.
917 - Switch to TypeScript 5.x.x.
918 - Switch rollup bundler plugins to core ones.
919 - Switch to TSDoc syntax.
920 - Enforce conventional commits.
924 - Fix random integer generator.
925 - Fix worker choice strategy pool type identification at initialization.
927 ## [2.3.7] - 2022-10-23
931 - Switch to open collective FOSS project funding platform.
932 - Switch to ts-standard linter configuration on TypeScript code.
936 - Fixed missing async on pool execute method.
937 - Fixed typing in TypeScript example.
938 - Fixed types in unit tests.
940 ## [2.3.6] - 2022-10-22
944 - Cleanup pool attributes and methods.
945 - Refine error types thrown.
949 - Fix continuous integration build on windows.
950 - Fix code coverage reporting by using c8 instead of nyc.
952 ## [2.3.5] - 2022-10-21
956 - Improve benchmarks: add IO intensive task workload, add task size option, integrate code into linter.
957 - Optimize tasks usage lookup implementation.
961 - Fix missed pool event emitter type export.
962 - Fix typedoc documentation generation.
964 ## [2.3.4] - 2022-10-17
968 - Fully automate release process with release-it.
972 - Optimize fair share task scheduling algorithm implementation.
973 - Update benchmark versus external pools results with latest version.
975 ## [2.3.3] - 2022-10-15
979 - Add support for [cluster settings](https://nodejs.org/api/cluster.html#cluster_cluster_settings) in cluster pool options.
981 ## [2.3.2] - 2022-10-14
985 - Optimize fair share worker selection strategy implementation.
989 - Fix WRR worker selection strategy: ensure the condition triggering the round robin can be fulfilled.
991 ## [2.3.1] - 2022-10-13
995 - Pool worker choice strategies:
996 - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN` strategy based on weighted round robin scheduling algorithm using tasks execution time for now.
997 - `WorkerChoiceStrategies.FAIR_SHARE` strategy based on fair share scheduling algorithm using tasks execution time for now.
999 ## [2.2.2] - 2022-10-09
1003 - Fixed `README.md` file.
1005 ## [2.2.1] - 2022-10-08
1009 - Dynamic worker choice strategy change at runtime.
1011 ## [2.2.0] - 2022-01-05
1013 ### Breaking Changes
1015 - Support only Node.js version 16.x.x for cluster pool: upstream cluster API have changed on that version.
1017 ## [2.1.0] - 2021-08-29
1021 - Add an optional pool option `messageHandler` to `PoolOptions<Worker>` for registering a message handler callback on each worker.
1023 ### Breaking Changes
1025 - `AbstractWorker` class `maxInactiveTime`, `killBehavior` and `async` attributes have been removed in favour of the same ones in the worker options `opts` public attribute.
1026 - `AbstractWorker` class `lastTask` attribute have been renamed to `lastTaskTimestamp`.
1027 - `AbstractWorker` class `interval` attribute have been renamed to `aliveInterval`.
1028 - `AbstractWorker` class cannot be instantiated without specifying the `mainWorker` argument referencing the main worker.
1030 ## [2.0.2] - 2021-05-12
1034 - Fix `busy` event emission on fixed pool type
1036 ## [2.0.1] - 2021-03-16
1040 - Check if pool options are properly set.
1041 - `busy` event is emitted on all pool types.
1043 ## [2.0.0] - 2021-03-01
1047 - Now a thread/process by default is not deleted when the task submitted take more time than maxInactiveTime configured (issue #70).
1049 ### Breaking Changes
1051 - `FullPool` event is now renamed to `busy`.
1052 - `maxInactiveTime` on `ThreadWorker` default behavior is now changed, if you want to keep the old behavior set `killBehavior` to `KillBehaviors.HARD`.
1053 _Find more details on our JSDoc._
1055 - `maxTasks` option on `FixedThreadPool` and `DynamicThreadPool` is now removed since is no more needed.
1057 - We changed some internal structures, but you shouldn't be too affected by them as these are internal changes.
1059 ### Pool options types declaration merge
1061 `FixedThreadPoolOptions` and `DynamicThreadPoolOptions` type declarations have been merged to `PoolOptions<Worker>`.
1063 #### New `export` strategy
1067 const DynamicThreadPool = require('poolifier/lib/dynamic')
1069 const { DynamicThreadPool } = require('poolifier/lib/dynamic')
1072 But you should always prefer just using
1075 const { DynamicThreadPool } = require('poolifier')
1078 #### New type definitions for input data and response
1080 For cluster worker and worker-thread pools, you can now only send and receive structured-cloneable data.
1081 _This is not a limitation by poolifier but Node.js._
1083 #### Public property replacements
1085 `numWorkers` property is now `numberOfWorkers`
1087 #### Internal (protected) properties and methods renaming
1089 These properties are not intended for end users
1091 - `id` => `nextMessageId`
1093 These methods are not intended for end users
1095 - `_chooseWorker` => `chooseWorker`
1096 - `_newWorker` => `createWorker`
1097 - `_execute` => `internalExecute`
1098 - `_chooseWorker` => `chooseWorker`
1099 - `_checkAlive` => `checkAlive`
1101 - `_runAsync` => `runAsync`
1103 ## [1.1.0] - 2020-05-21
1107 - ThreadWorker support async functions as option
1108 - Various external library patches
1110 ## [1.0.0] - 2020-01-24
1114 - FixedThreadPool implementation
1115 - DynamicThreadPool implementation
1116 - WorkerThread implementation to improve developer experience