Releases · reactor/reactor-core

14 Nov 20:58

v3.6.0

e42dd15

v3.6.0

Reactor-Core 3.6.0 is part of 2023.0.0 Release Train.

This is the first GA release of 2023.0.0 🎉

This note focuses on 3.6.0 proper, curating changes from across all milestones and also includes changes already released as part of 3.4.x line up to 3.4.34 as well as 3.5.x line up to 3.5.12.

While there are plenty of improvements and bug fixes, it's worth to highlight the bigger themes first:

The Schedulers.boundedElastic() may return a specific implementation tailored for Project Loom and running on virtual threads if application runs in Java 21+ runtime and have set the reactor.schedulers.defaultBoundedElasticOnVirtualThreads system property to true. Please consult the javadocs and the reference documentation for more information.
Support for Multi-Release Jar. Since this release project has java version specific sources that are enabled if runs in specific Java runtime. This allows to avoid unnecessary reflection checks as well as embrace some new neat java features without changing the baseline for the whole code base.
Hardening of the context-propagation. This release introduces better support for external Publishers detection with their corresponding decoration if detected. This enables more stable context-propagation when it comes to external libraries integration.

See dedicated pre-release blogpost for more information.

What's Changed

⚠️ Update considerations and deprecations

Regression in Flux.create: addCap always returns value with flag by @OlegDokuka in #3610
makes throwable assignment happens-before done assignment in onError for FluxPublish by @OlegDokuka in #3638

✨ New features and improvements

Hardening automatic context propagation by @chemicL in #3549
InternalOperator automatic context propagation by @chemicL in #3625
adds support for gradle 8.1.1 by @OlegDokuka in #3521
adds support for multi-release-jar | rework Traces by @OlegDokuka in #3523
introduces automatic loom support by @OlegDokuka in #3524
provides minimal troubleshooting for mrj by @OlegDokuka in #3532
fix #3539 takeUntil Predicate test before emit by @AramMessdaghi9001 in #3544
Reworks FluxPublish internals to relay on predictable state machine by @OlegDokuka in #3538
dedicated loom oriented boundeElasticScheduler implementation by @OlegDokuka in #3566
Handling 1.0.0 of context-propagation by @chemicL in #3609
provides extra check for contextualName presence by @OlegDokuka in #3611
JCStress: Await Scheduler dispose and increase timeouts by @chemicL in #3630

🐞 Bug fixes

fixes MonoDelayElement to properly handle race between delay run and onNext signal by @OlegDokuka in #3546
ensures GroupedFlux delivers subscription for the second subscriber by @OlegDokuka in #3555
ensures late onRequest consumer observes demand by @OlegDokuka in #3557
ensures that proper index is used during onNext check by @OlegDokuka in #3614
ensures SchedulerTask uses isShutdown instead of isDisposed by @OlegDokuka in #3623

📖 Documentation, Tests and Build

Fix return type for Mono.tap in javadoc by @ajax-surovskyi-y in #3564
fixes CI.yml by @OlegDokuka in #3575
adds CI nightly builds by @OlegDokuka in #3581
disables temporarily java 21 tests by @OlegDokuka in #3590
Bump actions/setup-java from 3.12.0 to 3.13.0 in /.github/workflows by @dependabot in #3585
Bump actions/checkout from 3.1.0 to 4.1.0 in /.github/workflows by @dependabot in #3586
Bump gradle/gradle-build-action from 2.7.0 to 2.9.0 in /.github/workflows by @dependabot in #3594
improves build speed by @OlegDokuka in #3597
Revised documentation about context propagation by @chemicL in #3617
updates to java 21 GA temurin by @OlegDokuka in #3631
Gradle 8.4 upgrade by @chemicL in #3632

🆙 Dependency Upgrades

Bump gradle/wrapper-validation-action from 1.0.5 to 1.1.0 in /.github/workflows by @dependabot in #3542
Bump com.gradle.enterprise from 3.12.4 to 3.14.1 by @dependabot in #3548
Bump actions/setup-java from 3.6.0 to 3.12.0 in /.github/workflows by @dependabot in #3550
Bump gradle/gradle-build-action from 2.3.3 to 2.7.0 in /.github/workflows by @dependabot in #3551
Update Micrometer version to 1.10.10 by @violetagg in #3560
upgrades to latest micrometer versions by @OlegDokuka in #3561
Bump io.spring.nohttp from 0.0.10 to 0.0.11 by @dependabot in #3497
Bump org.junit:junit-bom from 5.9.2 to 5.10.0 by @dependabot in #3556
Bump me.champeau.gradle.japicmp from 0.4.1 to 0.4.2 by @dependabot in #3595
Bump jmhVersion from 1.36 to 1.37 by @dependabot in #3596
Bump byteBuddyVersion from 1.14.5 to 1.14.8 by @dependabot in #3601
Bump com.gradle.enterprise from 3.14.1 to 3.15 by @dependabot in #3602
Bump ch.qos.logback:logback-classic from 1.2.11 to 1.2.12 by @dependabot in #3476
Bump de.undercouch.download from 5.4.0 to 5.5.0 by @dependabot in #3608
Bump com.gradle.enterprise from 3.15 to 3.15.1 by @dependabot in #3613
Update micrometer and micrometerTracing by @pderop in #3636
Update micrometer, micrometerTracing, contextPropagation by @pderop in #3637

New Contributors

@AramMessdaghi9001 made their first contribution in #3544
@ajax-surovskyi-y made their first contribution in #3564

Full Changelog: v3.5.8...v3.6.0

Contributors

pderop, violetagg, and 5 other contributors

Assets 2

14 Nov 20:00

OlegDokuka

v3.5.12

fd79952

v3.5.12

Reactor Core 3.5.12 is part of 2022.0.13 Release Train.

What's Changed