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