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4.x: Java target version clarification

4.x

Discussion

Status: Open.

Task

#8089In ReactiveX/RxJava;

· akarnokd opened on Mar 30, 2026

·

4.0

4.x: Separate TestHelper.race uses so they can run @Isolated

4.x

PR welcome

Test

Test-Failures

Status: Open.

Task

#8075In ReactiveX/RxJava;

· akarnokd opened on Mar 25, 2026

·

4.0

4.x: Cache/Replay operators to be more GC friendly

4.x

Enhancement

Status: Open.

Task

#7912In ReactiveX/RxJava;

· akarnokd opened on Oct 2, 2025

·

3.1-support

Feature Request: Add Observable.usingWhen() for resources generated by a Publisher

4.x

Feature-Request

Status: Open.

Feature

#7548In ReactiveX/RxJava;

· KarboniteKream opened on Mar 25, 2023

·

4.0

Feature Request: Add unfold construct to Flowable/Observable

4.x

Feature-Request

Status: Open.

Feature

#7422In ReactiveX/RxJava;

· scr-oath opened on May 26, 2022

4.x: parallel performs poorly with 10+ parallelism

4.x

Performance

Status: Open.

Feature

#6931In ReactiveX/RxJava;

· akarnokd opened on Mar 11, 2020

·

4.0

Update wiki to reflect 4.x (tracking issue)

4.x

Discussion

Documentation

PR welcome

Status: Open.

Task

#6132In ReactiveX/RxJava;

· akarnokd opened on Aug 3, 2018

·

4.0

4.x: Flowable missing or incorrect marbles (tracking issue)

4.x

Documentation

PR welcome

Status: Open.

Task

#5813In ReactiveX/RxJava;

· akarnokd opened on Jan 17, 2018

·

4.0