Releases · zio/zio

@kyri-petrou

Highlights

This release brings a few bug fixes and improvements. One notable fix is that the initial value of Ref can now be garbage-collected once the value of the Ref changes (it was not the case previously).

What's Changed

FiberRuntime micro-optimizations and cleanups by @kyri-petrou in #9653
Optimize ZIO#provideSomeEnvironment and FiberRef#locallyWith by @kyri-petrou in #9652
Improve non empty collection traits (#9677) by @987Nabil in #9678
test-sbt: treat TestWildcardSelector correctly by @dubinsky in #9680
Fix ZIO#timeoutTo inheriting wrong value from FiberRef#locally (#9693) by @vladimirkl in #9700
Change iterableFactory from val to def in ChunkLike by @kajebiii in #9703
Improve memory usage in Ref.Atomic by @maximskripnik in #9710
Allow for the initial value of Ref to be GC'd by @kyri-petrou in #9733
Add ZStream.tapChunks by @erikvanoosten in #9696
Add ZStream.mapZIOChunked by @erikvanoosten in #9697
Optimize Scope finalization for empty scopes by @kyri-petrou in #9477
Implement union types Gen instance derivation by @guizmaii in #9723
Make metrics names compatible with Prometheus Java library by @mberndt123 in #9740

Other changes (CI, dependencies and documentation)

fix(deps): update dependency @zio.dev/zio-json to v0.7.35 by @renovate in #9647
chore(deps): update dependency cytoscape to v3.31.1 by @renovate in #9648
Update magnolia to 1.3.16 by @zio-scala-steward in #9649
fix(deps): update dependency @zio.dev/zio-redis to v1.1.1 by @renovate in #9651
Update auxlib, clib, javalib, nativelib, ... to 0.5.7 by @zio-scala-steward in #9650
fix(deps): update dependency @zio.dev/zio-json to v0.7.36 by @renovate in #9655
fix(deps): update dependency @zio.dev/zio-cache to v0.2.4 by @renovate in #9654
Revert Scala Native version to 0.5.6 by @kyri-petrou in #9656
chore(deps): update dependency prettier to v3.5.3 by @renovate in #9661
chore(deps): update dependency typescript to v5.8.2 by @renovate in #9658
docs: add a hint about interruption in ScopedRef by @mberndt123 in #9660
fix(deps): update dependency @zio.dev/zio-json to v0.7.37 by @renovate in #9663
fix(deps): update dependency @zio.dev/zio-redis to v1.1.2 by @renovate in #9664
Bump actions/create-github-app-token from 1.11.5 to 1.11.6 by @dependabot in #9666
fix(deps): update dependency react-markdown to v10.0.1 by @renovate in #9665
Update sbt, sbt-dependency-tree, ... to 1.10.9 by @zio-scala-steward in #9667
fix(deps): update dependency @zio.dev/zio-json to v0.7.38 by @renovate in #9669
fix(deps): update dependency @zio.dev/zio-schema to v1.6.4 by @renovate in #9670
Update sbt, sbt-dependency-tree, ... to 1.10.10 by @zio-scala-steward in #9671
fix(deps): update dependency @zio.dev/zio-telemetry to v3.1.2 by @renovate in #9673
fix(deps): update dependency @zio.dev/zio-json to v0.7.39 by @renovate in #9672
fix(deps): update dependency react-markdown to v10.1.0 by @renovate in #9674
fix(deps): update dependency @zio.dev/zio-streams-compress to v1.1.0 by @renovate in #9675
fix(deps): update dependency autoprefixer to v10.4.21 by @renovate in #9679
Bump peter-evans/create-pull-request from 7.0.7 to 7.0.8 by @dependabot in #9682
fix(deps): update dependency @zio.dev/zio-http to v3.1.0 by @renovate in #9685
Update sbt-ci-release to 1.9.3 by @zio-scala-steward in #9691
Update reactor-core to 3.7.4 by @zio-scala-steward in #9687
fix(deps): update dependency @zio.dev/zio-schema to v1.6.5 by @renovate in #9689
Update spring-core to 6.2.4 by @zio-scala-steward in #9694
Add ZSteam un-chunking notes by @erikvanoosten in #9695
Update zio-http to 3.1.0 by @zio-scala-steward in #9686
fix(deps): update dependency @zio.dev/zio-config to v4.0.4 by @renovate in #9699
Update junit-platform-engine to 1.12.1 by @zio-scala-steward in #9698
fix(deps): update dependency @zio.dev/zio-schema to v1.6.6 by @renovate in #9702
chore(deps): update dependency @types/react to v19.0.11 by @renovate in #9706
Update sbt, sbt-dependency-tree, ... to 1.10.11 by @zio-scala-steward in #9707
Update sbt-mdoc to 2.6.5 by @zio-scala-steward in #9708
chore(deps): update dependency @types/react to v19.0.12 by @renovate in #9712
fix(deps): update dependency @zio.dev/zio-redis to v1.1.3 by @renovate in #9713
Update sbt-bloop to 2.0.9 by @zio-scala-steward in #9714
Update spring-core to 6.2.5 by @zio-scala-steward in #9715
fix(deps): update dependency @zio.dev/zio-query to v0.7.7 by @renovate in #9718
fix(deps): update dependency @zio.dev/zio-kafka to v2.12.0 by @renovate in #9721
Update cats-effect to 3.6.0 by @zio-scala-steward in #9722
Bump actions/create-github-app-token from 1.11.6 to 1.11.7 by @dependabot in #9725
Update fs2-core to 3.12.0 by @zio-scala-steward in #9727
fix(deps): update dependency @zio.dev/zio-http to v3.2.0 by @renovate in #9730
Upgrade to Tailwind 4 by @johnspade in #9728
fix(deps): update tailwindcss monorepo to v4.0.17 by @renovate in #9731
Update zio-http to 3.2.0 by @zio-scala-steward in #9732
Use simple CSS minifier by @johnspade in #9734
fix(deps): update react monorepo to v19.1.0 by @renovate in #9735
fix(deps): update dependency @zio.dev/zio-telemetry to v3.1.3 by @renovate in #9736
Bump actions/create-github-app-token from 1.11.7 to 1.12.0 by @dependabot in #9737
chore(deps): update dependency cytoscape to v3.31.2 by @renovate in #9739
fix(deps): update tailwindcss monorepo to v4.1.0 by @renovate in #9741
fix(deps): update tailwindcss monorepo to v4.1.1 by @renovate in #9746
chore(deps): update dependency @types/react to v19.1.0 by @renovate in #9745
Disable Renovate Dependency Dashboard by @hearnadam in #9747
fix(deps): update tailwindcss monorepo to v4.1.2 by @renovate in #9749
fix(deps): update tailwindcss monorepo to v4.1.3 by @renovate in #9752

New Contributors

@kajebiii made their first contribution in #9703
@maximskripnik made their first contribution in #9710

Full Changelog: v2.1.16...v2.1.17

@kyri-petrou

Highlights

This seemingly small release brings 2 new features to ZIO which library authors can utilize in order to provide a better DX for users. As usually, it also contains a number of optimizations, bug fixes, and it's fully binary and source-compatible with the rest of the v2.x series.

`HasNoScope` evidence (#9604)

In ZIO, having a Scope as an environment requirement indicates that the effect contains finalizers (e.g., closing an HTTP connection) which need to be handled at some point in the evaluation of the effect or the application's lifetime. In certain cases, we might want to ensure that an effect provided to a method does not contain any finalizers. Starting with this version of ZIO, users / library authors can use the HasNoScope evidence for methods where the environment is generic, e.g.,:

def foo[R, A](f: ZIO[R, Nothing, A)(using HasNoScope[R]) = ???

val f1 = foo(ZIO.succeed("foo")) // compiles
val f2 = foo(ZIO.acquireRelease(ZIO.succeed("foo"))(_ => ZIO.unit)) // fails to compile

Note that this feature is primarily intended for use in libraries such as zio-http where we need to ensure that a user-provided effect does not contain any finalizers.

Generic interfaces for non-empty collections (#9560)

This release introduces the NonEmptySeq type class (which NonEmptyChunk now extends) so that users / library authors can write generic code which requires non-empty collections as arguments.

What's Changed

Mark broacastDynamic tests as flaky by @kyri-petrou in #9558
Mark Fiber as sealed by @hearnadam in #9554
Optimise zio.stream.ZChannel#mapOutZIOPar code by @guizmaii in #9556
#9467 add peekAll to TQueue by @IgorDorokhov in #9476
more general type for ZSink.last by @mberndt123 in #9506
Add internal Promise#succeedUnit method to avoid Exit allocation when possible by @guizmaii in #9571
Improve warning to Chunk.fromArray about array mutability by @kyri-petrou in #9576
fix to SuiteAll macro, fail on missing type Spec if not imported by @kaplan-shaked in #9575
Use an inline given for CanFail evidence in Scala 3 by @kyri-petrou in #9568
add stringValue method to zio.Config.Secret by @mberndt123 in #9580
Implement generic interfaces for non-empty collections (#9559) by @987Nabil in #9560
Optimise ZIO::exit encoding by @guizmaii in #9586
Optimize ZIO::flatMapError encoding by @guizmaii in #9585
Reduce cost of Promise creation by @guizmaii in #9603
Clean zio.stream.ZStream#toPull code by @guizmaii in #9400
Add HasNoScope type class (#9597) by @987Nabil in #9604

Other changes (CI, dependencies and documentation)

fix(deps): update dependency @zio.dev/zio-json to v0.7.15 by @renovate in #9551
Update magnolia to 1.3.11 by @zio-scala-steward in #9553
fix(deps): update dependency @zio.dev/zio-json to v0.7.16 by @renovate in #9561
Remove community project zio-aws-s3 from doc as it's not maintained by @guizmaii in #9564
Update zio-aws doc by @guizmaii in #9563
Update magnolia to 1.3.12 by @zio-scala-steward in #9567
chore(deps): update dependency prettier to v3.5.0 by @renovate in #9566
Deprecate accessor methods in zio-kafka tutorial by @erikvanoosten in #9565
fix(deps): update dependency @zio.dev/zio-json to v0.7.17 by @renovate in #9572
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc39 - autoclosed by @renovate in #9573
fix: Flaky broadcastDynamic tests (#9555) by @gkfabs in #9557
Bump actions/create-github-app-token from 1.11.2 to 1.11.3 by @dependabot in #9577
fix(deps): update dependency postcss to v8.5.2 by @renovate in #9578
fix(deps): update dependency @zio.dev/zio-bson to v1.0.8 by @renovate in #9579
Update reactor-core to 3.7.3 by @zio-scala-steward in #9581
fix(deps): update dependency @zio.dev/zio-json to v0.7.18 by @renovate in #9582
fix(deps): update dependency @zio.dev/zio-redis to v1.0.1 by @renovate in #9583
fix(deps): update dependency @zio.dev/zio-sbt to v0.4.0-alpha.31 by @renovate in #9584
fix(deps): update dependency @zio.dev/zio-json to v0.7.19 by @renovate in #9588
fix(deps): update dependency @zio.dev/zio-json to v0.7.20 by @renovate in #9591
chore(deps): update dependency prettier to v3.5.1 by @renovate in #9590
Update magnolia to 1.3.13 by @zio-scala-steward in #9594
fix(deps): update dependency @zio.dev/zio-json to v0.7.21 by @renovate in #9599
Update sbt-mdoc to 2.6.4 by @zio-scala-steward in #9595
Update spring-core to 6.2.3 by @zio-scala-steward in #9596
chore(deps): update dependency @types/react to v19.0.9 by @renovate in #9605
Bump actions/create-github-app-token from 1.11.3 to 1.11.5 by @dependabot in #9607
chore(deps): update dependency @types/react to v19.0.10 by @renovate in #9606
Update magnolia to 1.3.14 by @zio-scala-steward in #9609
fix(deps): update dependency @zio.dev/zio-json to v0.7.22 by @renovate in #9612
fix(deps): update dependency @zio.dev/zio-json to v0.7.23 by @renovate in #9613
fix(deps): update dependency react-icons to v5.5.0 by @renovate in #9615
fix(deps): update dependency @zio.dev/zio-json to v0.7.24 by @renovate in #9614
fix(deps): update dependency @zio.dev/zio-json to v0.7.25 by @renovate in #9618
Tweaking the zio-kafka tutorial by @erikvanoosten in #9617
fix(deps): update dependency postcss to v8.5.3 by @renovate in #9620
fix(deps): update dependency @zio.dev/zio-schema to v1.6.2 by @renovate in #9619
fix(deps): update dependency @zio.dev/zio-kafka to v2.11.0 by @renovate in #9621
fix(deps): update dependency @zio.dev/zio-json to v0.7.26 by @renovate in #9627
fix(deps): update dependency @zio.dev/zio-schema to v1.6.3 by @renovate in #9623
fix(deps): update dependency react-markdown to v10 by @renovate in #9626
chore(deps): update dependency prettier to v3.5.2 by @renovate in #9631
fix(deps): update dependency @zio.dev/zio-json to v0.7.28 by @renovate in #9632
Update sbt-scalafix, scalafix-testkit to 0.14.2 by @zio-scala-steward in #9628
Update junit-platform-engine to 1.12.0 by @zio-scala-steward in #9630
fix(deps): update dependency @zio.dev/zio-redis to v1.1.0 by @renovate in #9634
fix(deps): update dependency @zio.dev/zio-json to v0.7.29 by @renovate in #9635
fix(deps): update dependency @zio.dev/zio-logging to v2.5.0 by @renovate in #9636
fix(deps): update dependency @zio.dev/zio-json to v0.7.30 by @renovate in #9637
fix(deps): update dependency @zio.dev/zio-json to v0.7.31 by @renovate in #9641
Bump JamesIves/github-pages-deploy-action from 4.7.2 to 4.7.3 by @dependabot in #9639
fix(deps): update dependency @zio.dev/zio-json to v0.7.32 by @renovate in #9643
Bump peter-evans/create-pull-request from 7.0.6 to 7.0.7 by @dependabot in #9640
fix(deps): update dependency @zio.dev/zio-json to v0.7.33 by @renovate in #9644
Update slf4j-simple to 2.0.17 by @zio-scala-steward in #9646
Update magnolia to 1.3.15 by @zio-scala-steward in #9645

Full Changelog: v2.1.15...v2.1.16

@plokhotnyuk

Highlights

This release contains various under-the-hood optimizations and minor bug fixes.

Important

One noteable change is the update of izumi-reflect to v3.x from v2.x. This version of izumi-reflect generates tags that are not binary/backwards compatible for Scala 3 opaque types with those generated by v2.x.

Since zio itself does not use opaque types, we considered this as a safe change. However, library authors that have ZIO as a dependency might want to check whether this change affects them in any way and release a new version using the updated zio / izumi-reflect versions

What's Changed

More efficient cleaning of exception stack traces in zio-test by @plokhotnyuk in #9437
Optimise zio.stream.ZStream.repeat by @guizmaii in #9397
Optimise zio.stream.ZStream#takeRight by @guizmaii in #9398
Sink drop while bug by @eyalfa in #9405
Optimise zio.stream.ZChannel.mergeAllWith code by @guizmaii in #9383
Optimize FiberRef#locally by @guizmaii in #9480
Optimize FiberRef#locallyScoped by @guizmaii in #9481
Optimize FiberRef#locallyScopedWith by @guizmaii in #9483
Fix rare race condition causing ZStream to hang on parallel errors by @kyri-petrou in #9478
Optimize ZIO.fail by @kyri-petrou in #9487
Optimize logging by @kyri-petrou in #9489
Print interruptions in ZIO#debug by @kyri-petrou in #9473
Make *VersionSpecific and *PlatformSpecific traits package-private by @kyri-petrou in #9491
update: ZIO#head to use subtype of Seq, not List by @hearnadam in #9502
Cache+seal evidence classes by @hearnadam in #9509
Optimize Ref.Atomic by @hearnadam in #9500
fix : ZStream Broadcastdynamic hanging by @gkfabs in #9474
Ensure Supervisor#onEnd is called exactly once by @kyri-petrou in #9537
ZIO.fromEither should produce a stacktrace on failure by @kyri-petrou in #9536

Other changes (CI, dependencies and documentation)

Update contributor guidelines by @plokhotnyuk in #9435
Update dependency highlight.js to v11.11.1 by @renovate in #9440
Update dependency @zio.dev/zio-sbt to v0.4.0-alpha.29 by @renovate in #9442
Docs (test-aspects) - use sbt testOnly in examples by @dbrown428 in #9441
Update dependency @zio.dev/zio-config to v4.0.3 by @renovate in #9444
Update @zio.dev/zio-dynamodb docs to 1.0.0-RC17 by @github-actions in #9446
Use GitHub App Token to Create PRs of New Documentation Releases by @khajavi in #9447
Update dependency @zio.dev/zio-streams-compress to v1 by @renovate in #9448
Update dependency @zio.dev/zio-sbt to v0.4.0-alpha.30 by @renovate in #9451
Update dependency @zio.dev/zio-telemetry to v3.1.1 by @renovate in #9454
Update scalafmt version by @kyri-petrou in #9450
Update dependency @zio.dev/zio-json to v0.7.4 by @renovate in #9455
Add documentation about using virtual threads by @digy in #9368
Update dependency typescript to v5.7.3 by @renovate in #9457
Update dependency @types/react to v19.0.4 by @renovate in #9456
Update dependency @zio.dev/zio-kafka to v2.9.1 by @renovate in #9460
Update dependency @types/react to v19.0.5 by @renovate in #9461
Update dependency @types/react to v19.0.6 by @renovate in #9462
Add test for ZStream#dropWhileZIO by @kyri-petrou in #9463
Update dependency @types/react to v19.0.7 by @renovate in #9468
Update dependency cytoscape to v3.31.0 by @renovate in #9465
Update dependency prettier-plugin-tailwindcss to v0.6.10 by @renovate in #9469
Update dependency postcss to v8.5.1 by @renovate in #9466
Reduce parallelism of ZStreamSpec by @kyri-petrou in #9464
Run Auto-approve GH job only for renovate PRs by @kyri-petrou in #9472
Update dependency @zio.dev/zio-kafka to v2.10.0 by @renovate in #9475
Add missing disableAutoTrace in ZStream file by @kyri-petrou in #9479
Fix flaky test in SemaphoreSpec by @kyri-petrou in #9492
Update dependency @zio.dev/zio-schema to v1.6.0 by @renovate in #9497
Update dependency prettier-plugin-tailwindcss to v0.6.11 by @renovate in #9496
Update dependency @zio.dev/zio-json to v0.7.5 by @renovate in #9495
Update dependency @types/react to v19.0.8 by @renovate in #9493
Update dependency @zio.dev/zio-schema to v1.6.1 by @renovate in #9499
Update dependency @zio.dev/zio-json to v0.7.6 by @renovate in #9498
Update dependency @zio.dev/zio-json to v0.7.7 by @renovate in #9501
Update dependency @zio.dev/zio-json to v0.7.8 by @renovate in #9504
Update dependency @zio.dev/izumi-reflect to v2024.11.11-da5b828d4d6e by @renovate in #9513
Update dependency @zio.dev/zio-json to v0.7.9 by @renovate in #9510
Disable bsp for js/native specific sources by @hearnadam in #9508
fix(deps): update dependency react-markdown to v9.0.3 by @renovate in #9515
Update izumi-reflect to v3.0.0 by @kyri-petrou in #9517
Update dependencies by @guizmaii in #9520
fix(deps): update dependency @zio.dev/zio-json to v0.7.10 by @renovate in #9522
Deprecating accessor methods by @erikvanoosten in #9519
fix broken links in docs by @mberndt123 in #9514
fix(deps): update dependency @zio.dev/zio-json to v0.7.12 by @renovate in #9528
Fix CI: Update actions/upload-artifact && actions/download-artifact by @guizmaii in #9527
fix(deps): update dependency @zio.dev/zio-json to v0.7.12 by @renovate in #9529
fix(deps): update dependency @zio.dev/zio-json to v0.7.13 by @renovate in #9530
Add scala-steward and dependabot to maintain things up-to-date by @guizmaii in #9526
Bump actions/checkout from 4.1.1 to 4.2.2 by @dependabot in #9534
Bump release-drafter/release-drafter from 5 to 6 by @dependabot in #9532
Bump actions/create-github-app-token from 1.11.1 to 1.11.2 by @dependabot in #9535
Bump actions/setup-java from 4.2.1 to 4.7.0 by @dependabot in #9533
Bump JamesIves/github-pages-deploy-action from 4.4.1 to 4.7.2 by @dependabot in #9531
Update sbt-mdoc to 2.6.3 by @zio-scala-steward in #9543
Update junit-platform-engine to 1.11.4 by @zio-scala-steward in #9542
Update izumi-reflect to 3.0.1 by @zio-scala-steward in #9539
fix(deps): update dependency @zio.dev/zio-json to v0.7.14 by @renovate in #9546
Bump actions/setup-node from 3 to 4 by @dependabot in #9545
Documentation: Remove Deprecated Projects by @khajavi in #9547
Update magnolia to 1.3.10 by @zio-scala-steward in #9549

New Contributors

@dbrown428 made their first contribution in #9441
@zio-scala-steward made their first contribution in #9543
@gkfabs made their first contribution in #9474

Full Changelog: v2.1.14...v2.1.15

@plokhotnyuk

Highlights

This release comes packed with bug fixes and under-the-hood optimizations. Big thank you to all the old and new contributors for their work in this release!

Important

Runtime behaviour change of `ZIO#onDone` and `ZIO#onDoneCause`

In this release, the behavior of onDone and onDoneCause has changed to address concerns raised in #9191. Unlike other onX methods, onDone and onDoneCause executed the callback effects in "fire and forget" mode.

We believe that this behaviour could lead to unexpected bugs in applications. As such we changed the implementation of these methods so that the callbacks are executed synchronously. While we believe it's highly unlikely that users using these methods were aware of this implementation detail, we still advice them to review their usages as a precaution.

What's Changed

More efficient parsing of line numbers without string allocations (#9433) @plokhotnyuk
More Exit optimizations for ZIO methods (#9427) @kyri-petrou
Check Exit.Success first in FiberRuntime#runloop (#9422) @kyri-petrou
Optimizations for ZIO#foreach* methods (#9365) @kyri-petrou
Use an Exit for Promise.succeed (#9419) @kyri-petrou
Use Exit.succeed in more places (#9418) @kyri-petrou
Optimisation: Replace Trace.instance.unapply calls with Trace.instance.parse (#9416) @guizmaii
Optimise Tracer.instance#unapply (#9414) @guizmaii
Optimize pattern-matching in ZIO/Exit methods (#9415) @kyri-petrou
Ensure that TestClock methods are thread-safe (#9408) @kyri-petrou
Optimisation: Implement ZIO.suspendSucceed with ZIO.FlatMap (#9388) @guizmaii
Optimisation - FiberRuntime: bypass evaluation of flatmap.first when possible (#9393) @guizmaii
Optimise zio.stream.ZStream.fromChunk (#9396) @guizmaii
Optimise zio.stream.ZStream.succeed (#9399) @guizmaii
Optimise FiberRef#set (#9402) @guizmaii
Optimisation - FiberRuntime: Remove ZIO.Continuation allocation (#9391) @guizmaii
Optimize Scope-related methods (#9372) @kyri-petrou
zio-test: Don't overwrite inner node labels (#9363) @joroKr21
Fix race condition for errors in ZChannel.mapOutZIOPar* methods (#9354) @kyri-petrou
Refactor FiberRefs shortcut optimizations (#9328) @kyri-petrou
Optimise ZStream.repeatZIOChunkOption (#9379) @guizmaii
Fix #9358 OS signal handling for windows (#9366) @clarzte
[Issue #8571] Fix spans in TestResults with inlined code (#9367) @arainko
Remove internal usages of ZIO.done (#9369) @kyri-petrou
Ensure ZLayer macros use the trace from implicit scope (#9361) @joroKr21
Simplify Pull.failCause code (#9364) @guizmaii
Add Runtime method to enable loom based blocking executor (#9355) @digy
Replace internal ZIO.success(Chunk.empty) calls with Exit.emptyChunk (#9360) @guizmaii
Replace all internal ZIO.fail(None) with Exit.failNone (#9359) @guizmaii
Fix leak of finalizers in ZKeyedPool (#9329) @kyri-petrou
Transfer child finalisers to parent in ZIO.raceAll and ZIO.raceFibersWith #9203 (#9353) @digy
Fix zio-kafka regression caused by ZStream changes (#9341) @kyri-petrou
Bring Ref on par with AtomicInteger (#9340) @erikvanoosten
Make vals non-transient in ZIO services (#9345) @kyri-petrou
Cause filter fix (#9254) @eyalfa
Use -Ybackend-parallelism:4 when compiling Scala 2.13 with optimization enabled (#9346) @kyri-petrou
[Issue-9272] add ZLayer#runWith (#9351) @arainko
Add applyOnExit and applyOnExitWith methods to ZIO.Grafter (#9349) @kyri-petrou
Use a val for accessing Ref.Atomic#unsafe (#9344) @kyri-petrou
perf: Use whileLoop instead of recursion for several functions (#9131) @tmccombs
Suppress ExplicitImplicitTypes Wartremover warning in macro (#9323) @joroKr21
Fix Scope propagation in ZStream#runScoped (#9327) @kyri-petrou
Fix scope propagation for multiple specs #9175 (#9325) @clarzte
Remove implicit forking in ZIO#onDone and ZIO#onDoneCause to align with onX methods (#9286) @asr2003
Cleanup & update build.sbt (#9310) @kyri-petrou

Other changes (CI, dependencies and documentation)

Update dependency @types/react to v19.0.2 (#9434) @renovate
Update dependency tailwindcss to v3.4.17 (#9432) @renovate
Migrate renovate config (#9428) @renovate
Update izumi Version (#9429) @khajavi
Update dependency typescript to v5.7.2 (#9425) @renovate
Update dependency @tsconfig/docusaurus to v2.0.3 (#9420) @renovate
Update dependency @types/react-helmet to v6.1.11 (#9421) @renovate
Update dependency tailwindcss to v3.4.16 (#9423) @renovate
Update dependency clsx to v2.1.1 (#9424) @renovate
fix(deps): update dependency highlight.js to v11.11.0 (#9413) @renovate
chore(deps): update react monorepo to v19 (major) - autoclosed (#9381) @renovate
chore(deps): update dependency prettier to v3.4.2 - autoclosed (#9374) @renovate
chore(deps): update dependency @types/react to v18.3.13 (#9376) @renovate
fix(deps): update dependency @zio.dev/zio-cli to v0.7.0 (#9377) @renovate
fix(deps): update dependency react-icons to v5.4.0 (#9371) @renovate
feat: Migrate to Docusaurus v3 (#9165) @neo773
Update documentation of ref to fix warning about immutable data (#9357) @varshith257
Avoid name clash on JDK 23 from java.io.IO (#9322) @digy
Remove Scalac From Sponsors (#9331) @khajavi
chore(deps): update dependency prettier to v3.4.1 (#9347) @renovate
fix(deps): update dependency @zio.dev/zio-telemetry to v3.1.0 (#9348) @renovate
Add a Banner for Zionomicon Announcement (#9338) @khajavi
chore(deps): update dependency prettier to v3.4.0 (#9343) @renovate
chore(deps): update dependency cytoscape to v3.30.4 (#9342) @renovate
fix(deps): update dependency @zio.dev/zio-telemetry to v3.0.2 (#9335) @renovate
fix(deps): update dependency @zio.dev/zio-quill to v4.8.5 (#9334) @renovate
Introducing ZIO Guru on Gurubase.io (#9314) @kursataktas
chore(deps): update dependency prettier-plugin-tailwindcss to v0.6.9 (#9315) @renovate
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc35 (#9318) @renovate-bot

New Contributors

@clarzte made their first contribution in #9325
@kursataktas made their first contribution in #9314
@tmccombs made their first contribution in #9131
@arainko made their first contribution in #9351
@digy made their first contribution in #9322
@neo773 made their first contribution in #9165
@plokhotnyuk made their first contribution in #9433

Full Changelog: v2.1.13...v2.1.14

@vincent-raman

Highlights

This seemingly small release brings a number of new features and important bugfixes:

Adds support for the Junit 5 engine via the new zio-test-junit-engine module #9214.
[ScalaJS] Adds support for accessing environment variables via zio.System in JS engines that support it (e.g., NodeJS) #9282.
Fixes a bug to an issue some users faced with ZStream.mapZIOPar* methods since v2.1.12 #9312.

As always, this version is fully source and binary compatible with the rest of the v2.x series.

What's Changed

Add junit 5 engine for zio tests. Resolves #6724 by @vincent-raman in #9214
Fix Span Substring Bounds Handling by @Saturn225 in #9285
Make environment variables access platform-specific by @mhriemers in #9282
Allow creation of child fibers within uninterruptible regions on interrupted fibers by @kyri-petrou in #9295
Ensure that FiberRuntime auto-yields when evaluating WhileLoops by @kyri-petrou in #9289
Improve subtype global cache performance by @kyri-petrou in #9296
Fix memory leak in ZKeydPool#invalidate by @kyri-petrou in #9307
Reduce the size of code generated by layer macros by @joroKr21 in #9281
Fix interruption propagation in ZChannel#mapOutPar* methods by @kyri-petrou in #9312

Other changes (CI, dependencies and documentation)

Doc: Simplify example by @guizmaii in #9287
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc32 by @renovate in #9290
fix(deps): update dependency postcss to v8.4.48 by @renovate in #9292
fix(deps): update dependency postcss to v8.4.49 by @renovate in #9294
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc33 by @renovate in #9293
Fix flaky interruption test by @kyri-petrou in #9299
fix(deps): update dependency @zio.dev/zio-logging to v2.4.0 - autoclosed by @renovate in #9298
fix(deps): update dependency @zio.dev/zio-kafka to v2.9.0 by @renovate in #9301
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc34 by @renovate in #9302
fix(deps): update dependency tailwindcss to v3.4.15 by @renovate in #9305
Fix timeouts in ZStream test by @kyri-petrou in #9313
Fix release CI (#9317) @kyri-petrou

New Contributors

@Saturn225 made their first contribution in #9285
@mhriemers made their first contribution in #9282

Full Changelog: v2.1.12...v2.1.13

@somdoron

This release brings a couple bug fixes for STM, as well as a few optimizations and usability improvements.

What's Changed

Add addLogAnnotation method to Runtime for adding a log annotation to the entire app by @somdoron in #9235
Add ZIO.fromNullable by @kyri-petrou in #9250
Use reflection to install system signal handlers in JVM applications by @kyri-petrou in #9251
adds ConfigProvider.fromAppArgs by @somdoron in #9242
fix pipeline intersperse issue by @paulpdaniels in #9253
[9102] - add awaiting function to Semaphore by @IgorDorokhov in #9212
Expose Fiber.Runtime.UnsafeAPI#interrupt method by @hearnadam in #9246
Ensure that transactions containing both reads and writes are consistent by @kyri-petrou in #9265
optimize fromCompletionStage by @hearnadam in #9267
Optimise happy path in ZChannel.mapOutZIOPar* by @regiskuckaertz in #9123
Allow all types of statements within suiteAll for Scala 3 by @kyri-petrou in #9273
Make TMap#toMap idempotent by @kyri-petrou in #9280

Other changes (CI, dependencies and documentation)

fix(deps): update dependency @zio.dev/zio-profiling to v0.3.2 by @renovate in #9238
Add .devcontainer config by @kyri-petrou in #9228
fix(deps): update dependency @zio.dev/zio-ftp to v0.4.3 by @renovate in #9241
fix(deps): update dependency @zio.dev/zio-logging to v2.3.2 by @renovate in #9248
fix(deps): update dependency @zio.dev/zio-telemetry to v3.0.0 by @renovate in #9249
Add zio-streams-compress by @erikvanoosten in #9252
Added zio-cli sample project to sampleprojects by @fancellu in #9256
Add Kafka BigQuery Express to the sampleprojects by @erikvanoosten in #9255
fix(deps): update dependency @zio.dev/zio-streams-compress to v0.0.2 by @renovate in #9259
fix(deps): update dependency @zio.dev/zio-kafka to v2.8.3 by @renovate in #9263
docs: update quickstarts and tutorials for sbt-revolver plugin added by @varshith257 in #9195
Update dependencies by @kyri-petrou in #9270
Fixed typo in zio.md by @gbarrett-makeit in #9275
Add articles to Resources and sort them by @ghostdogpr in #9277
Fix Scaladoc for ZStream.fromOutputStreamScoped by @kyri-petrou in #9269
Doc: Update the Service Pattern doc && Remove the Accessor Methods section from it by @guizmaii in #9220
fix(deps): update dependency @zio.dev/zio-telemetry to v3.0.1 by @renovate in #9278

@kyri-petrou

We found a regression in 2.1.10 causing a runtime exception in some cases when using ZIO environment and layers, so here's a release to fix that.

What's Changed

Fix IndexOutOfBoundsException when using reverseIterator on UpdateOrderLinkedMap by @kyri-petrou in #9239

@kyri-petrou

This release brings a few important bug fixes related to ZPool and ZSTM as well as some optimizations. It also fixes a binary incompatibility that caused runtime errors when using an older version ZIO Streams together with ZIO 2.1.9.

Important note about ZPool changes

There are 2 fixes / changes to ZPool that might affect the behaviour of an application so users are advised to revise the following in cases of unexpected behaviour after upgrading to ZIO 2.1.10+.

Eager / strict initialization of ZPool's resources

In previous ZIO versions, the initialization of ZPool resources was done lazily in a daemon fiber. e.g., this code would previously print the message, but will now "hang" awaiting for the pool to be initialized to its full size:

ZPool.make(ZIO.never, 10) *> ZIO.debug("Pool initialized")

We believe that this change makes the behaviour of ZPool more predictable (and referentially transparent!) as previously there were no guarantees that the ZPool resources would be initialized during the creation of the pool. However, this might result in the initialization of the pool hanging in cases that the acquisition of the resources itself hangs. Therefore users are advised to consider adding timeouts to the resource initialization effect.

Strict finalization of ZPool resources

In previous versions, it was possible for the ZPool finalizers to be interrupted, which would lead to potential leak of resources (see this issue for more info). Starting with ZIO 2.1.10+, closing a ZPool requires all of the resource finalizers to finish first. As with (1), this might lead to some unexpected behaviour if the finalization of a resource hangs indefinitely, so users are advised to add timeouts to the finalizers of resources used with ZPool.

What's Changed

Use "unsafe" methods in Ref.Atomic by @kyri-petrou in #9155
Fix ZPool finalizers not running when resource acquisition fails or is interrupted by @kyri-petrou in #9163
Initialize ZPool to its full size in the calling fiber by @kyri-petrou in #9164
Install signal handlers when running test suites by @kyri-petrou in #9166
Ensure ZPool finalizers are run if initialization is interrupted by @kyri-petrou in #9174
Ensure all FiberId recursive methods are stack safe by @guymers in #9173
Inherit child fibers created by merged streams by @kyri-petrou in #9180
Fix assert macro throwing missing method error in Scala 3 by @kyri-petrou in #9183
Add mapErrorZIO to streams by @cipriansofronia in #9187
Use reference equality in ZEnvironment when applying optimizations by @kyri-petrou in #9207
Fix binary incompatibility issue in zio v2.1.7+ by @kyri-petrou in #9223
Attempt to obtain new locks without retrying transaction in ZSTM by @kyri-petrou in #9221

Other changes (CI, dependencies and documentation)

chore(deps): update dependency @types/react to v18.3.5 by @renovate in #9154
fix(deps): update dependency postcss to v8.4.42 by @renovate in #9156
Restyling welcome page by @SvMak in #9112
fix(deps): update dependency postcss to v8.4.43 by @renovate in #9158
fix(deps): update dependency postcss to v8.4.44 by @renovate in #9159
Add zio-apache-parquet to ecosystem community docs by @grouzen in #9157
fix(deps): update dependency postcss to v8.4.45 by @renovate in #9169
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc31 by @renovate in #9171
Set JDK release version to 11 by @kyri-petrou in #9177
fix(deps): update dependency @zio.dev/zio-http to v3.0.0 by @renovate in #9190
Fix logo resolution by @SvMak in #9188
fix(deps): update dependency postcss to v8.4.47 by @renovate in #9196
fix(deps): update dependency tailwindcss to v3.4.11 by @renovate in #9192
fix(deps): update dependency @zio.dev/zio-query to v0.7.6 by @renovate in #9197
chore(deps): update dependency @types/react to v18.3.6 by @renovate in #9198
Documentation: Fix The Link to OpenTracing Documentation Page by @khajavi in #9161
chore(deps): update dependency @types/react to v18.3.7 by @renovate in #9199
fix(deps): update dependency @zio.dev/zio-http to v3.0.1 by @renovate in #9200
fix(deps): update dependency @zio.dev/zio-bson to v1.0.7 by @renovate in #9201
fix(deps): update dependency @zio.dev/zio-schema to v1.5.0 by @renovate in #9204
fix(deps): update dependency tailwindcss to v3.4.12 by @renovate in #9202
chore(deps): update dependency @types/react to v18.3.8 by @renovate in #9206
Remove mention of discontinued tools by @namingbe in #9213
Typos in zpipeline.md by @dubinsky in #9219
fix(deps): update dependency tailwindcss to v3.4.13 by @renovate in #9216
chore(deps): update dependency prettier-plugin-tailwindcss to v0.6.8 by @renovate in #9218
chore(deps): update dependency @types/react to v18.3.9 by @renovate in #9217
Doc: Update info about Java versions supported by @guizmaii in #9224
chore(deps): update dependency @types/react to v18.3.11 by @renovate in #9225
Doc: Needs to use serviceWithZIO not serviceWith by @fancellu in #9226
fix(deps): update dependency @zio.dev/zio-lambda to v1.0.5 by @renovate in #9230
Fix documentation for TestLens#right by @callado4 in #9232

@renovate

After receiving multiple reports of users failing to compile code using ZLayer macros with v2.1.8, we decided to temporarily revert #9077 until we get to bottom of what's been causing it.

What's Changed

fix(deps): update dependency @zio.dev/zio-query to v0.7.5 by @renovate in #9144
Update Scala Native to 0.5.5 by @kyri-petrou in #9143
fix(deps): update dependency @zio.dev/zio-json to v0.7.3 by @renovate in #9148
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc30 by @renovate in #9150
Revert "makeSome refactoring" by @kyri-petrou in #9151

Full Changelog: v2.1.8...v2.1.9

@pablf

This release brings a re-implemented ZSTM runtime that significantly improves performance under contention, enables multi-threading for Scala Native 0.5.x, squashes some minor bugs, and makes a few things run a little bit faster. And it is fully binary and source-compatible with the rest of 2.x release!

Highlights

ZSTM performance improvements

The performance of ZSTM under heavy contention has regressed over time due to various bug fixes. In this release, we reimplemented the internal runtime of ZSTM in order to significantly improve its performance under heavy contention (up to 800% improved throughput in some benchmarks!) all while achieving similar or better performance under no contention. For more details check out #9081

Scala Native multi-threading support

In the previous release, we updated Scala Native to v0.5.x but as we mentioned in the release notes, the ZIO runtime was not yet multi-threading capable. In this release, we threw most of the existing Scala Native code (which was not thread-safe) and changed it to use (mostly) the same code as the JVM artifacts. Users that currently use ZIO with Scala Native 0.5.x must enable multi-threading for Scala Native in their builds by removing nativeConfig ~= { _.withMultithreading(false) }.

Warning

We're aware of an issue when using zio-test on MacOS ARM64 when the debug compilation mode is used (default). If you come across any issues, try setting the mode to releaseFast or releaseFull (see here for an example)

What's Changed

makeSome refactoring (#9077) @pablf
Scala native multi-threading support (#9127) @kyri-petrou
Config.Secret's length leak (#9129) @pablf
send test finished notification for failing tests (#9139) @vincent-raman
Whencasediscardfunctions (#9136) @Petter-K
Optimise Secret creation from String (#9130) @guizmaii
Fix Scala Native tests not being run/reported properly (#9126) @kyri-petrou
FiberRuntime cleanups & micro-optimizations (#9115) @kyri-petrou
Prefer Exit over ZIO in nested effects and other micro-optimizations (#9106) @kyri-petrou
Optimize FiberRef#locally to restore previous FiberRefs when unmodified (#9105) @kyri-petrou
Use an improved eq in FiberRefs and add shortcut for join (#9100) @kyri-petrou
Add TestAspect.checks to allow running aspects within property-based specs (#9076) @mschuwalow
Allow cached methods to be interrupted (#9068) @guymers
Avoid scheduling non-positive sleep timers (#9098) @kyri-petrou
Improve ZSTM's performance (#9081) @kyri-petrou
Ensure ZStream scope is properly closed (#9088) @kyri-petrou
fix: restore non-determinism in mapOutZIOParUnordered (#9075) @regiskuckaertz
feat: accumulate errors in ZChannel.mapOutZIOPar (#9065) @regiskuckaertz
Fix behaviour of ZEnvironment.empty.get[Any] (#9074) @kyri-petrou

Other changes (CI, dependencies and documentation)

Fix checkout on release (#9142) @kyri-petrou
STM Documentation: Improve Writing and Fix Grammar Mistakes (#9107) @khajavi
fix(deps): update dependency @zio.dev/zio-redis to v1 (#9141) @renovate
fix(deps): update dependency @zio.dev/zio-logging to v2.3.1 (#9140) @renovate
fix(deps): update dependency @zio.dev/zio-kafka to v2.8.2 (#9137) @renovate
fix(deps): update dependency @zio.dev/zio-telemetry to v3.0.0-rc26 (#9134) @renovate
chore(deps): update dependency @types/react to v18.3.4 (#9133) @renovate
fix(deps): update dependency @zio.dev/zio-kafka to v2.8.1 (#9132) @renovate
Fix flaky ZStream test (#9121) @kyri-petrou
Reduce CI test time & optimize zio-test execution (#9128) @kyri-petrou
Add video component (#9111) @SvMak
Fix typos and improve English in index.md (#9119) @nedmules-sked
Setup improving website (#9110) @SvMak
fix(deps): update dependency @zio.dev/zio-schema to v1.4.1 (#9114) @renovate
fix(deps): update dependency @zio.dev/zio-schema to v1.4.0 (#9109) @renovate
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc29 (#9108) @renovate
Ensure green CI with re-actors/alls-green (#9104) @sideeffffect
fix(deps): update dependency @zio.dev/zio-json to v0.7.2 (#9103) @renovate
Reduce number of CI workflows (#9096) @kyri-petrou
fix(deps): update dependency @zio.dev/zio-optics to v0.2.2 (#9099) @renovate
fix(deps): update dependency @zio.dev/zio-constraintless to v0.3.3 (#9097) @renovate
Fix flaky WeakConcurrentBagSpec test (#9095) @kyri-petrou
Fix TestClock (#9080) @asr2003
add new ZIO template project to the list of template projects (#9094) @lachezar
Fix flaky ZLayer test (#9092) @kyri-petrou
chore(deps): update dependency cytoscape to v3.30.2 (#9085) @renovate
fix(deps): update dependency @zio.dev/zio-prelude to v1.0.0-rc28 (#9083) @renovate
fix(deps): update dependency @zio.dev/zio-telemetry to v3.0.0-rc25 (#9090) @renovate
fix(deps): update dependency postcss to v8.4.41 (#9078) @renovate
Typo in stream reference (#9064) @SADmitry
docs: add clarification note on initialization of test bootstrap layers (#9057) @varshith257

Releases: zio/zio

2.1.17

Highlights

What's Changed

Other changes (CI, dependencies and documentation)

New Contributors

Contributors

2.1.16

Highlights

HasNoScope evidence (#9604)

Generic interfaces for non-empty collections (#9560)

What's Changed

Other changes (CI, dependencies and documentation)

Contributors

2.1.15

Highlights

What's Changed

Other changes (CI, dependencies and documentation)

New Contributors

Contributors

2.1.14

Highlights

Runtime behaviour change of ZIO#onDone and ZIO#onDoneCause

What's Changed

Other changes (CI, dependencies and documentation)

New Contributors

Contributors

2.1.13

Highlights

What's Changed

Other changes (CI, dependencies and documentation)

New Contributors

Contributors

2.1.12

What's Changed

Other changes (CI, dependencies and documentation)

Contributors

2.1.11

What's Changed

Contributors

2.1.10

Important note about ZPool changes

Eager / strict initialization of ZPool's resources

Strict finalization of ZPool resources

What's Changed

Other changes (CI, dependencies and documentation)

Contributors

2.1.9

What's Changed

Contributors

2.1.8

Highlights

ZSTM performance improvements

Scala Native multi-threading support

What's Changed

Other changes (CI, dependencies and documentation)

Contributors

`HasNoScope` evidence (#9604)

Runtime behaviour change of `ZIO#onDone` and `ZIO#onDoneCause`