CHANGELOG.md

   1 # Changelog
   2
   3 All notable changes to this project will be documented in this file.
   4
   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).
   7
   8 ## [Unreleased]
   9
  10 ### Changed
  11
  12 - Disable publication on GitHub packages registry on release until authentication issue is fixed.
  13
  14 ### Added
  15
  16 - Add `startWorkers` to pool options to whether start the minimum number of workers at pool creation or not.
  17 - Add `taskStealing` and `tasksStealingOnPressure` to tasks queue options to whether enable task stealing or not and whether enable tasks stealing on back pressure or not.
  18 - Continuous internal benchmarking: https://poolifier.github.io/benchmark-results/dev/bench.
  19
  20 ## [2.6.44] - 2023-09-08
  21
  22 ### Fixed
  23
  24 - Use a dedicated PAT to publish on GitHub packages registry.
  25
  26 ### Added
  27
  28 - Publish on GitHub packages registry on release.
  29
  30 ### Changed
  31
  32 - Switch from rome to biome: [PR #1128](https://github.com/poolifier/poolifier/pull/1128).
  33
  34 ## [2.6.43] - 2023-09-08
  35
  36 ### Added
  37
  38 - Publish on GitHub packages registry on release.
  39
  40 ### Changed
  41
  42 - Switch from rome to biome: [PR #1128](https://github.com/poolifier/poolifier/pull/1128).
  43
  44 ## [2.6.42] - 2023-09-06
  45
  46 ### Changed
  47
  48 - Optimize hot code paths implementation: avoid unnecessary branching, add and use optimized helpers (min, max), use reduce() array helper, ...
  49
  50 ## [2.6.41] - 2023-09-03
  51
  52 ### Changed
  53
  54 - Optimize worker choice strategies implementation.
  55
  56 ## [2.6.40] - 2023-09-01
  57
  58 ### Fixed
  59
  60 - Do not pre-choose in WRR worker choice strategy to avoid bias.
  61 - Avoid array out of bound in worker choice strategies after worker node removal.
  62
  63 ## [2.6.39] - 2023-08-30
  64
  65 ### Fixed
  66
  67 - Fix race condition in worker choice strategies at worker node info querying while not yet initialized.
  68
  69 ## [2.6.38] - 2023-08-30
  70
  71 ### Added
  72
  73 - Bundle typescript types declaration into one file.
  74
  75 ### Changed
  76
  77 - Improve interleaved weighted round robin worker choice strategy implementation.
  78
  79 ## [2.6.37] - 2023-08-28
  80
  81 ### Fixed
  82
  83 - Ensure unused worker usage statistics are deleted at runtime.
  84
  85 ### Changed
  86
  87 - Rename worker choice strategy options `choiceRetries` to `retries`.
  88 - Avoid unnecessary branching in worker choice strategies.
  89
  90 ## [2.6.36] - 2023-08-27
  91
  92 ### Fixed
  93
  94 - Fix pool `execute()` arguments check.
  95
  96 ### Changed
  97
  98 - Make continuous tasks stealing algorithm less aggressive.
  99 - Fine tune tasks stealing algorithm under back pressure.
 100
 101 ## [2.6.35] - 2023-08-25
 102
 103 ### Fixed
 104
 105 - Don't account worker usage statistics for tasks that have failed.
 106 - Fix pool information runtime and wait time median computation.
 107
 108 ### Changed
 109
 110 - Update simple moving average implementation to use a circular buffer.
 111 - Update simple moving median implementation to use a circular buffer.
 112 - Account for stolen tasks in worker usage statistics and pool information.
 113
 114 ### Added
 115
 116 - Continuous tasks stealing algorithm.
 117
 118 ## [2.6.34] - 2023-08-24
 119
 120 ### Fixes
 121
 122 - Avoid cascading tasks stealing under back pressure.
 123
 124 ### Changed
 125
 126 - Add fastpath to queued tasks rescheduling.
 127
 128 ## [2.6.33] - 2023-08-24
 129
 130 ### Fixed
 131
 132 - Fix queued tasks rescheduling.
 133
 134 ### Changed
 135
 136 - Rename tasks queue options `queueMaxSize` to `size`.
 137
 138 ### Added
 139
 140 - Task stealing scheduling algorithm if tasks queueing is enabled.
 141
 142 ## [2.6.32] - 2023-08-23
 143
 144 ### Fixed
 145
 146 - Ensure no task can be executed when the pool is destroyed.
 147
 148 ### Added
 149
 150 - Add `queueMaxSize` option to tasks queue options.
 151 - Add O(1) deque implementation implemented with doubly linked list and use it for tasks queueing.
 152 - Add tasks stealing algorithm when a worker node queue is back pressured if tasks queueing is enabled.
 153
 154 ## [2.6.31] - 2023-08-20
 155
 156 ### Fixed
 157
 158 - Fix worker choice strategy retries mechanism in some edge cases.
 159
 160 ### Changed
 161
 162 - Make orthogonal worker choice strategies tasks distribution and created dynamic worker usage.
 163 - Remove the experimental status of the `LEAST_ELU` worker choice strategy.
 164
 165 ## [2.6.30] - 2023-08-19
 166
 167 ### Fixed
 168
 169 - Ensure pool event `backPressure` is emitted.
 170 - Ensure pool event `full` is emitted only once.
 171 - Ensure worker node cannot be instantiated without proper arguments.
 172
 173 ## [2.6.29] - 2023-08-18
 174
 175 ### Fixed
 176
 177 - Fix race condition between ready and task functions worker message handling at startup.
 178 - Fix duplicate task function worker usage statistics computation per task function.
 179 - Update task function worker usage statistics if and only if there's at least two different task functions.
 180 - Fix race condition at task function worker usage executing task computation leading to negative value.
 181
 182 ### Added
 183
 184 - 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).
 185 - Use back pressure detection in worker choice strategies.
 186 - Add worker choice strategies retries mechanism if no worker is eligible.
 187
 188 ## [2.6.28] - 2023-08-16
 189
 190 ### Fixed
 191
 192 - Ensure pool workers are properly initialized.
 193
 194 ### Added
 195
 196 - HTTP server pool examples: express-cluster, express-hybrid.
 197
 198 ### Changed
 199
 200 - Remove now useless branching in worker hot code path.
 201
 202 ## [2.6.27] - 2023-08-15
 203
 204 ### Fixed
 205
 206 - Add `KillHandler` type definition to exported types.
 207
 208 ### Added
 209
 210 - Add `destroy` event to pool API.
 211
 212 ## [2.6.26] - 2023-08-15
 213
 214 ### Added
 215
 216 - Add kill handler to worker options allowing to execute custom code when worker is killed.
 217 - Add `listTaskFunctions()` method to pool API.
 218 - SMTP client pool example: nodemailer.
 219
 220 ## [2.6.25] - 2023-08-13
 221
 222 ### Added
 223
 224 - HTTP server pool examples: fastify-cluster, fastify-hybrid.
 225 - WebSocket server pool examples: ws-cluster, ws-hybrid.
 226
 227 ## [2.6.24] - 2023-08-12
 228
 229 ### Added
 230
 231 - Add array of transferable objects to the `execute()` method arguments.
 232 - WebSocket server pool examples: ws-worker_threads.
 233
 234 ## [2.6.23] - 2023-08-11
 235
 236 ### Fixed
 237
 238 - 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.
 239
 240 ### Added
 241
 242 - HTTP client pool examples: fetch, node-fetch and axios with multiple task functions.
 243 - HTTP server pool examples: express-worker_threads, fastify-worker_threads.
 244
 245 ## [2.6.22] - 2023-08-10
 246
 247 ### Fixed
 248
 249 - Add missing `types` field to package.json `exports`.
 250
 251 ### Changed
 252
 253 - Structure markdown documentation (PR #811).
 254
 255 ## [2.6.21] - 2023-08-03
 256
 257 ### Changed
 258
 259 - Improve code documentation.
 260 - Code refactoring and cleanup for better maintainability and readability.
 261
 262 ## [2.6.20] - 2023-07-21
 263
 264 ### Fixed
 265
 266 - Fix queued tasks redistribution on error task execution starvation.
 267 - Ensure tasks queueing per worker condition is untangled from the pool busyness semantic.
 268
 269 ### Changed
 270
 271 - Drastically reduce lookups by worker in the worker nodes.
 272
 273 ## [2.6.19] - 2023-07-20
 274
 275 ### Added
 276
 277 - Dedicated internal communication channel for worker_threads pools.
 278
 279 ## [2.6.18] - 2023-07-19
 280
 281 ### Changed
 282
 283 - Code refactoring and cleanup for better maintainability and readability. Bundle size is a bit smaller.
 284
 285 ## [2.6.17] - 2023-07-16
 286
 287 ### Added
 288
 289 - Add `listTaskFunctions()` method to worker API.
 290
 291 ## [2.6.16] - 2023-07-12
 292
 293 ### Fixed
 294
 295 - Fix pool startup detection.
 296 - Fix worker task functions handling.
 297
 298 ## [2.6.15] - 2023-07-11
 299
 300 ### Added
 301
 302 - Take into account worker node readiness in worker choice strategies.
 303
 304 ## [2.6.14] - 2023-07-10
 305
 306 ### Fixed
 307
 308 - Fix task function statistics tracking.
 309
 310 ## [2.6.13] - 2023-07-10
 311
 312 ### Added
 313
 314 - Add per task function statistics tracking.
 315 - Add public methods to manipulate the worker task functions at runtime.
 316
 317 ## [2.6.12] - 2023-07-09
 318
 319 ### Fixed
 320
 321 - Workaround import issue with `node:os` module in node 16.x.x.
 322
 323 ## [2.6.11] - 2023-07-09
 324
 325 ### Fixed
 326
 327 - Fix pool readiness semantic.
 328
 329 ## [2.6.10] - 2023-07-08
 330
 331 ### Fixed
 332
 333 - Ensure workers are not recreated on error at pool startup.
 334
 335 ### Added
 336
 337 - Add `ready` and `strategy` fields to pool information.
 338 - Add pool event `ready` to notify when the number of workers created in the pool has reached the maximum size expected and are ready.
 339 - Add dynamic pool sizing checks.
 340
 341 ## [2.6.9] - 2023-07-07
 342
 343 ### Fixed
 344
 345 - Recreate the right worker type on uncaught exception.
 346
 347 ### Added
 348
 349 - Add minimum and maximum to internal measurement statistics.
 350 - Add `runTime` and `waitTime` to pool information.
 351 - Check worker inactive time only on dynamic worker.
 352
 353 ## [2.6.8] - 2023-07-03
 354
 355 ### Fixed
 356
 357 - Brown paper bag release to fix version handling in pool information.
 358
 359 ## [2.6.7] - 2023-07-03
 360
 361 ### Fixed
 362
 363 - Ensure worker queued tasks at error are reassigned to other pool workers.
 364
 365 ### Added
 366
 367 - Add pool `utilization` ratio to pool information.
 368 - Add `version` to pool information.
 369 - Add worker information to worker nodes.
 370
 371 ## [2.6.6] - 2023-07-01
 372
 373 ### Added
 374
 375 - Add safe helper `availableParallelism()` to help sizing the pool.
 376
 377 ### Fixed
 378
 379 - Ensure message handler is only registered in worker.
 380
 381 ## [2.6.5] - 2023-06-27
 382
 383 ### Known issues
 384
 385 - Cluster pools tasks execution are not working by using ESM files extension: https://github.com/poolifier/poolifier/issues/782
 386
 387 ### Fixed
 388
 389 - Artificial version bump to 2.6.5 to workaround publication issue.
 390 - Ensure cluster pool `destroy()` gracefully shutdowns worker's server.
 391 - Ensure pool event is emitted before task error promise rejection.
 392 - Fix queued tasks count computation.
 393
 394 ### Removed
 395
 396 - Remove unneeded worker_threads worker `MessageChannel` internal usage for IPC.
 397
 398 ## [2.6.4] - 2023-06-27
 399
 400 ### Known issues
 401
 402 - Cluster pools tasks execution are not working by using ESM files extension: https://github.com/poolifier/poolifier/issues/782
 403
 404 ### Fixed
 405
 406 - Ensure cluster pool `destroy()` gracefully shutdowns worker's server.
 407 - Ensure pool event is emitted before task error promise rejection.
 408 - Fix queued tasks count computation.
 409
 410 ### Removed
 411
 412 - Remove unneeded worker_threads worker `MessageChannel` internal usage for IPC.
 413
 414 ## [2.6.3] - 2023-06-19
 415
 416 ### Fixed
 417
 418 - Ensure no tasks are queued when trying to soft kill a dynamic worker.
 419 - Update strategies internals after statistics computation.
 420
 421 ### Changed
 422
 423 - Optimize O(1) queue implementation.
 424
 425 ## [2.6.2] - 2023-06-12
 426
 427 ### Fixed
 428
 429 - Fix new worker use after creation in dynamic pool given the current worker choice strategy.
 430
 431 ## [2.6.1] - 2023-06-10
 432
 433 ### Added
 434
 435 - Add worker choice strategy documentation: [README.md](./docs/worker-choice-strategies.md).
 436
 437 ### Fixed
 438
 439 - Fix average statistics computation: ensure failed tasks are not accounted.
 440
 441 ## [2.6.0] - 2023-06-09
 442
 443 ### Added
 444
 445 - Add `LEAST_ELU` worker choice strategy (experimental).
 446 - Add tasks ELU instead of runtime support to `FAIR_SHARE` worker choice strategy.
 447
 448 ### Changed
 449
 450 - Refactor pool worker node usage internals.
 451 - Breaking change: refactor worker choice strategy statistics requirements: the syntax of the worker choice strategy options has changed.
 452 - Breaking change: pool information `info` property object fields have been renamed.
 453
 454 ### Fixed
 455
 456 - Fix wait time accounting.
 457 - Ensure worker choice strategy `LEAST_BUSY` accounts also tasks wait time.
 458 - Ensure worker choice strategy `LEAST_USED` accounts also queued tasks.
 459
 460 ## [2.5.4] - 2023-06-07
 461
 462 ### Added
 463
 464 - Add Event Loop Utilization (ELU) statistics to worker tasks usage.
 465
 466 ### Changed
 467
 468 - Compute statistics at the worker level only if needed.
 469 - Add `worker_threads` options to thread pool options.
 470
 471 ### Fixed
 472
 473 - Make the `LEAST_BUSY` strategy only relies on task runtime.
 474
 475 ## [2.5.3] - 2023-06-04
 476
 477 ### Changed
 478
 479 - Refine pool information content.
 480 - Limit pool internals public exposure.
 481
 482 ## [2.5.2] - 2023-06-02
 483
 484 ### Added
 485
 486 - Add `taskError` pool event for task execution error.
 487 - Add pool information `info` property to pool.
 488 - Emit pool information on `busy` and `full` pool events.
 489
 490 ## [2.5.1] - 2023-06-01
 491
 492 ### Added
 493
 494 - Add pool option `restartWorkerOnError` to restart worker on uncaught error. Default to `true`.
 495 - Add `error` pool event for uncaught worker error.
 496
 497 ## [2.5.0] - 2023-05-31
 498
 499 ### Added
 500
 501 - Switch pool event emitter to `EventEmitterAsyncResource`.
 502 - Add tasks wait time accounting in per worker tasks usage.
 503 - Add interleaved weighted round robin `INTERLEAVED_WEIGHTED_ROUND_ROBIN` worker choice strategy (experimental).
 504
 505 ### Changed
 506
 507 - Renamed worker choice strategy `LESS_BUSY` to `LEAST_BUSY` and `LESS_USED` to `LEAST_USED`.
 508
 509 ## [2.4.14] - 2023-05-09
 510
 511 ### Fixed
 512
 513 - Ensure no undefined task runtime can land in the tasks history.
 514 - Fix median computation implementation once again.
 515
 516 ### Added
 517
 518 - Unit tests for median and queue implementations.
 519
 520 ## [2.4.13] - 2023-05-08
 521
 522 ### Fixed
 523
 524 - Fix worker choice strategy options validation.
 525 - Fix fair share worker choice strategy internals update: ensure virtual task end timestamp is computed at task submission.
 526
 527 ## [2.4.12] - 2023-05-06
 528
 529 ### Added
 530
 531 - Support multiple task functions per worker.
 532 - Add custom worker weights support to worker choice strategies options.
 533
 534 ### Changed
 535
 536 - Use O(1) queue implementation for tasks queueing.
 537
 538 ### Fixed
 539
 540 - Fix median computation implementation.
 541 - Fix fair share worker choice strategy internals update.
 542
 543 ## [2.4.11] - 2023-04-23
 544
 545 ### Changed
 546
 547 - Optimize free worker finding in worker choice strategies.
 548
 549 ## [2.4.10] - 2023-04-15
 550
 551 ### Fixed
 552
 553 - Fix typescript type definition for task function: ensure the input data is optional.
 554 - Fix typescript type definition for pool execute(): ensure the input data is optional.
 555
 556 ## [2.4.9] - 2023-04-15
 557
 558 ### Added
 559
 560 - Add tasks queue enablement runtime setter to pool.
 561 - Add tasks queue options runtime setter to pool.
 562 - Add worker choice strategy options runtime setter to pool.
 563
 564 ### Changed
 565
 566 - Remove the tasks queuing experimental status.
 567
 568 ### Fixed
 569
 570 - Fix task function type definition and validation.
 571 - Fix worker choice strategy options handling.
 572
 573 ## [2.4.8] - 2023-04-12
 574
 575 ### Fixed
 576
 577 - Fix message between main worker and worker type definition for tasks.
 578 - Fix code documentation.
 579
 580 ## [2.4.7] - 2023-04-11
 581
 582 ### Added
 583
 584 - Add worker tasks queue options to pool options.
 585
 586 ### Fixed
 587
 588 - Fix missing documentation.
 589
 590 ## [2.4.6] - 2023-04-10
 591
 592 ### Fixed
 593
 594 - Ensure one task at a time is executed per worker with tasks queueing enabled.
 595 - Properly count worker executing tasks with tasks queueing enabled.
 596
 597 ## [2.4.5] - 2023-04-09
 598
 599 ### Added
 600
 601 - Use monotonic high resolution timer for worker tasks runtime.
 602 - Add worker tasks median runtime to statistics.
 603 - Add worker tasks queue (experimental).
 604
 605 ## [2.4.4] - 2023-04-07
 606
 607 ### Added
 608
 609 - Add `PoolEvents` enumeration and `PoolEvent` type.
 610
 611 ### Fixed
 612
 613 - Destroy worker only on alive check.
 614
 615 ## [2.4.3] - 2023-04-07
 616
 617 ### Fixed
 618
 619 - Fix typedoc generation with inheritance.
 620
 621 ## [2.4.2] - 2023-04-06
 622
 623 ### Added
 624
 625 - Add `full` event to dynamic pool.
 626 - Keep worker choice strategy in memory for conditional reuse.
 627
 628 ### Fixed
 629
 630 - Fix possible negative worker key at worker removal in worker choice strategies.
 631
 632 ## [2.4.1] - 2023-04-05
 633
 634 ### Changed
 635
 636 - Optimize worker choice strategy for dynamic pool.
 637
 638 ### Fixed
 639
 640 - Ensure dynamic pool does not alter worker choice strategy expected behavior.
 641
 642 ## [2.4.0] - 2023-04-04
 643
 644 ### Added
 645
 646 - Add `LESS_BUSY` worker choice strategy.
 647
 648 ### Changed
 649
 650 - Optimize worker storage in pool.
 651 - Optimize worker alive status check.
 652 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 653 - Optimize `LESS_USED` worker choice strategy.
 654 - Update benchmark versus external threads pools.
 655 - Optimize tasks usage statistics requirements for worker choice strategy.
 656
 657 ### Fixed
 658
 659 - Ensure trimmable characters are checked at pool initialization.
 660 - Fix message id integer overflow.
 661 - Fix pool worker removal in worker choice strategy internals.
 662 - Fix package publication with pnpm.
 663
 664 ## [2.4.0-3] - 2023-04-04
 665
 666 ### Added
 667
 668 - Add `LESS_BUSY` worker choice strategy.
 669
 670 ### Changed
 671
 672 - Optimize worker storage in pool.
 673 - Optimize worker alive status check.
 674 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 675 - Optimize `LESS_USED` worker choice strategy.
 676 - Update benchmark versus external threads pools.
 677
 678 ### Fixed
 679
 680 - Ensure trimmable characters are checked at pool initialization.
 681 - Fix message id integer overflow.
 682 - Fix pool worker removal in worker choice strategy internals.
 683 - Fix package publication with pnpm.
 684
 685 ## [2.4.0-2] - 2023-04-03
 686
 687 ### Added
 688
 689 - Add `LESS_BUSY` worker choice strategy.
 690
 691 ### Changed
 692
 693 - Optimize worker storage in pool.
 694 - Optimize worker alive status check.
 695 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 696 - Optimize `LESS_USED` worker choice strategy.
 697
 698 ### Fixed
 699
 700 - Ensure trimmable characters are checked at pool initialization.
 701 - Fix message id integer overflow.
 702 - Fix pool worker removal in worker choice strategy internals.
 703 - Fix package publication with pnpm.
 704
 705 ## [2.4.0-1] - 2023-04-03
 706
 707 ### Added
 708
 709 - Add `LESS_BUSY` worker choice strategy.
 710
 711 ### Changed
 712
 713 - Optimize worker storage in pool.
 714 - Optimize worker alive status check.
 715 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 716 - Optimize `LESS_USED` worker choice strategy.
 717
 718 ### Fixed
 719
 720 - Ensure trimmable characters are checked at pool initialization.
 721 - Fix message id integer overflow.
 722 - Fix pool worker removal in worker choice strategy internals.
 723
 724 ## [2.4.0-0] - 2023-04-03
 725
 726 ### Added
 727
 728 - Add `LESS_BUSY` worker choice strategy.
 729
 730 ### Changed
 731
 732 - Optimize worker storage in pool.
 733 - Optimize worker alive status check.
 734 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 735 - Optimize `LESS_USED` worker choice strategy.
 736
 737 ### Fixed
 738
 739 - Ensure trimmable characters are checked at pool initialization.
 740 - Fix message id integer overflow.
 741 - Fix pool worker removal in worker choice strategy internals.
 742
 743 ## [2.3.10] - 2023-03-18
 744
 745 ### Fixed
 746
 747 - Fix package.json `exports` syntax for ESM and CommonJS.
 748
 749 ### Changed
 750
 751 - Permit SemVer pre-release publication.
 752
 753 ## [2.3.10-2] - 2023-03-18
 754
 755 ### Fixed
 756
 757 - Fix package.json `exports` syntax for ESM and CommonJS.
 758
 759 ## [2.3.10-1] - 2023-03-18
 760
 761 ### Changed
 762
 763 - Permit SemVer pre-release publication.
 764
 765 ## [2.3.10-0] - 2023-03-18
 766
 767 ### Fixed
 768
 769 - Fix package.json `exports` syntax for ESM and CommonJS.
 770
 771 ## [2.3.9] - 2023-03-18
 772
 773 ### Changed
 774
 775 - Introduce ESM module support along with CommonJS one.
 776
 777 ### Fixed
 778
 779 - Fix brown paper bag bug referencing the same object literal.
 780
 781 ## [2.3.8] - 2023-03-18
 782
 783 ### Changed
 784
 785 - Switch internal benchmarking code to benny.
 786 - Switch to TypeScript 5.x.x.
 787 - Switch rollup bundler plugins to core ones.
 788 - Switch to TSDoc syntax.
 789 - Enforce conventional commits.
 790
 791 ### Fixed
 792
 793 - Fix random integer generator.
 794 - Fix worker choice strategy pool type identification at initialization.
 795
 796 ## [2.3.7] - 2022-10-23
 797
 798 ### Changed
 799
 800 - Switch to open collective FOSS project funding platform.
 801 - Switch to ts-standard linter configuration on TypeScript code.
 802
 803 ### Fixed
 804
 805 - Fixed missing async on pool execute method.
 806 - Fixed typing in TypeScript example.
 807 - Fixed types in unit tests.
 808
 809 ## [2.3.6] - 2022-10-22
 810
 811 ### Changed
 812
 813 - Cleanup pool attributes and methods.
 814 - Refine error types thrown.
 815
 816 ### Fixed
 817
 818 - Fix continuous integration build on windows.
 819 - Fix code coverage reporting by using c8 instead of nyc.
 820
 821 ## [2.3.5] - 2022-10-21
 822
 823 ### Changed
 824
 825 - Improve benchmarks: add IO intensive task workload, add task size option, integrate code into linter.
 826 - Optimize tasks usage lookup implementation.
 827
 828 ### Fixed
 829
 830 - Fix missed pool event emitter type export.
 831 - Fix typedoc documentation generation.
 832
 833 ## [2.3.4] - 2022-10-17
 834
 835 ### Added
 836
 837 - Fully automate release process with release-it.
 838
 839 ### Changed
 840
 841 - Optimize fair share task scheduling algorithm implementation.
 842 - Update benchmark versus external pools results with latest version.
 843
 844 ## [2.3.3] - 2022-10-15
 845
 846 ### Added
 847
 848 - Add support for [cluster settings](https://nodejs.org/api/cluster.html#cluster_cluster_settings) in cluster pool options.
 849
 850 ## [2.3.2] - 2022-10-14
 851
 852 ### Changed
 853
 854 - Optimize fair share worker selection strategy implementation.
 855
 856 ### Fixed
 857
 858 - Fix WRR worker selection strategy: ensure the condition triggering the round robin can be fulfilled.
 859
 860 ## [2.3.1] - 2022-10-13
 861
 862 ### Added
 863
 864 - Pool worker choice strategies:
 865   - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN` strategy based on weighted round robin scheduling algorithm using tasks execution time for now.
 866   - `WorkerChoiceStrategies.FAIR_SHARE` strategy based on fair share scheduling algorithm using tasks execution time for now.
 867
 868 ## [2.2.2] - 2022-10-09
 869
 870 ### Fixed
 871
 872 - Fixed `README.md` file.
 873
 874 ## [2.2.1] - 2022-10-08
 875
 876 ### Added
 877
 878 - Dynamic worker choice strategy change at runtime.
 879
 880 ## [2.2.0] - 2022-01-05
 881
 882 ### Breaking Changes
 883
 884 - Support only Node.js version 16.x.x for cluster pool: upstream cluster API have changed on that version.
 885
 886 ## [2.1.0] - 2021-08-29
 887
 888 ### Added
 889
 890 - Add an optional pool option `messageHandler` to `PoolOptions<Worker>` for registering a message handler callback on each worker.
 891
 892 ### Breaking Changes
 893
 894 - `AbstractWorker` class `maxInactiveTime`, `killBehavior` and `async` attributes have been removed in favour of the same ones in the worker options `opts` public attribute.
 895 - `AbstractWorker` class `lastTask` attribute have been renamed to `lastTaskTimestamp`.
 896 - `AbstractWorker` class `interval` attribute have been renamed to `aliveInterval`.
 897 - `AbstractWorker` class cannot be instantiated without specifying the `mainWorker` argument referencing the main worker.
 898
 899 ## [2.0.2] - 2021-05-12
 900
 901 ### Bug fixes
 902
 903 - Fix `busy` event emission on fixed pool type
 904
 905 ## [2.0.1] - 2021-03-16
 906
 907 ### Bug fixes
 908
 909 - Check if pool options are properly set.
 910 - `busy` event is emitted on all pool types.
 911
 912 ## [2.0.0] - 2021-03-01
 913
 914 ### Bug fixes
 915
 916 - Now a thread/process by default is not deleted when the task submitted take more time than maxInactiveTime configured (issue #70).
 917
 918 ### Breaking Changes
 919
 920 - `FullPool` event is now renamed to `busy`.
 921 - `maxInactiveTime` on `ThreadWorker` default behavior is now changed, if you want to keep the old behavior set `killBehavior` to `KillBehaviors.HARD`.
 922   _Find more details on our JSDoc._
 923
 924 - `maxTasks` option on `FixedThreadPool` and `DynamicThreadPool` is now removed since is no more needed.
 925
 926 - We changed some internal structures, but you shouldn't be too affected by them as these are internal changes.
 927
 928 ### Pool options types declaration merge
 929
 930 `FixedThreadPoolOptions` and `DynamicThreadPoolOptions` type declarations have been merged to `PoolOptions<Worker>`.
 931
 932 #### New `export` strategy
 933
 934 ```js
 935 // Before
 936 const DynamicThreadPool = require('poolifier/lib/dynamic')
 937 // After
 938 const { DynamicThreadPool } = require('poolifier/lib/dynamic')
 939 ```
 940
 941 But you should always prefer just using
 942
 943 ```js
 944 const { DynamicThreadPool } = require('poolifier')
 945 ```
 946
 947 #### New type definitions for input data and response
 948
 949 For cluster worker and worker-thread pools, you can now only send and receive structured-cloneable data.
 950 _This is not a limitation by poolifier but Node.js._
 951
 952 #### Public property replacements
 953
 954 `numWorkers` property is now `numberOfWorkers`
 955
 956 #### Internal (protected) properties and methods renaming
 957
 958 These properties are not intended for end users
 959
 960 - `id` => `nextMessageId`
 961
 962 These methods are not intended for end users
 963
 964 - `_chooseWorker` => `chooseWorker`
 965 - `_newWorker` => `createWorker`
 966 - `_execute` => `internalExecute`
 967 - `_chooseWorker` => `chooseWorker`
 968 - `_checkAlive` => `checkAlive`
 969 - `_run` => `run`
 970 - `_runAsync` => `runAsync`
 971
 972 ## [1.1.0] - 2020-05-21
 973
 974 ### Added
 975
 976 - ThreadWorker support async functions as option
 977 - Various external library patches
 978
 979 ## [1.0.0] - 2020-01-24
 980
 981 ### Added
 982
 983 - FixedThreadPool implementation
 984 - DynamicThreadPool implementation
 985 - WorkerThread implementation to improve developer experience