Bump SBT 1.12.6, Scala 2.13.18/3.3.7, and all build plugins by halotukozak · Pull Request #5 · AVSystem/monix

halotukozak · 2026-02-26T13:53:34Z

Summary

Build tooling

SBT 1.5.2 → 1.12.6
Scala 2.13.8 / 3.1.2 → 2.13.18 / 3.3.7
sbt-scalajs 1.10.0 → 1.20.2
sbt-tpolecat 0.3.1 (io.github.davidgregory084) → 0.5.3 (org.typelevel)
sbt-scoverage 1.9.3 → 2.3.1
sbt-doctest 0.10.0 (com.github.tkawachi) → 0.12.4 (io.github.sbt-doctest)
sbt-unidoc 0.4.3 (com.eed3si9n) → 0.5.0 (com.github.sbt)
sbt-mima-plugin 1.1.0 → 1.1.4
sbt-jmh 0.4.3 → 0.4.7
sbt-scalafmt 2.4.6 → 2.5.6
sbt-header 5.7.0 → 5.10.0
sbt-pgp 2.1.2 → 2.3.1
sbt-sonatype 3.9.12 → 3.12.2
sbt-git 1.0.2 (com.typesafe.sbt) → 2.1.0 (com.github.sbt)
sbt-dynver 4.1.1 (com.dwijnand) → 5.1.0 (com.github.sbt)
sbt-reproducible-builds 0.30 → 0.32
sbt-assembly kept at 1.2.0 (2.x breaks JCTools shading)

Compiler plugins (build.sbt)

kind-projector 0.13.2 → 0.13.4
silencer 1.7.8 → 1.7.19

Compilation fixes

Added explicit Scheduler type annotations on all implicit val scheduler declarations (~130 files — required by newer Scala)
Added -Wconf suppressions for tpolecat 0.5.x value-discard warnings (Scala 2.13)
Removed -Werror for Scala 3 (tpolecat 0.5.x uses -Werror instead of -Xfatal-warnings)
Tuned test-scope scalacOptions for pre-existing patterns (-Wunused:patvars, -Xlint:constant)
Replaced throw null with throw new NullPointerException(...) in Reactive Streams publishers
Added explicit Eq[Task[A]] return type in test suite

Other

Removed unsupported -XX:+CMSClassUnloadingEnabled from .jvmopts
Added .planning/ to .gitignore

Test plan

sbt +compile passes on all Scala versions
sbt +test passes (JVM)
sbt +mimaReportBinaryIssues passes
CI green

🤖 Generated with Claude Code

…gEnabled

- Bump kind-projector and silencer versions\n - Silence other-implicit-type warnings in 2.13\n - Revert sbt-assembly to 1.2.0 to keep shading working

- Explicitly state that starting a new stack trace is intentional for performance and thread-safety\n - Add verification tests in TracingSuite

….typelevel 0.5.3 - Replace io.github.davidgregory084 group with org.typelevel in project/plugins.sbt - Update plugin version from 0.3.1 to 0.5.3 - Add explicit import org.typelevel.scalacoptions.ScalacOptions to build.sbt (required by 0.5.x API) - SBT loads without errors after migration

…tion plan - Create 01-01-SUMMARY.md documenting the org.typelevel migration - Update STATE.md with current position (Phase 01, Plan 02 next) and decisions - Update ROADMAP.md plan progress (1/2 summaries for phase 01) - Mark requirement UP-02 complete in REQUIREMENTS.md Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

@unchecked

- Add -Wconf:msg=unused value of type:silent for Scala 2.13 to suppress -Wvalue-discard warnings newly enabled by tpolecat 0.5.x (pre-existing patterns like trySuccess/tryFailure returning Boolean are intentional) - Remove -Werror for Scala 3 (tpolecat 0.5.x uses -Werror, not -Xfatal-warnings; the existing removal of -Xfatal-warnings was insufficient) - Fix CancelablePromise.scala:245: add @unchecked to val x :: xs pattern (Scala 3 requires annotation for refutable patterns used as definitions) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…erns Add Test / scalacOptions --= to remove warnings that tpolecat 0.5.x newly enables for test compilation but which trigger on pre-existing test patterns: - Remove -Wunused:patvars (2.13) / -Ywarn-unused:patvars (2.12): triggers on for-comprehension loop vars (e.g. `for (i <- 0 until 5) yield Future {...}`) - Remove -Xlint:constant (2.13): triggers on intentional overflow tests (e.g. `mc.orderedUpdate(c2, Long.MaxValue + 1)` in OrderedCancelableSuite) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

- Create 01-02-SUMMARY.md documenting UAT-verified cross-compilation success on Scala 2.12.20, 2.13.16, and 3.3.5 - Update STATE.md: Phase 01 all plans complete; document known issues (CatsEffectIssue380Suite JS hang, MiMa TrampolineExecutionContext) - Update ROADMAP.md: Phase 1 marked complete (2/2 plans done) - Mark requirements UP-01 and UP-02 complete in REQUIREMENTS.md Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Copilot

Pull request overview

Updates Monix’s build toolchain to newer SBT/Scala patch versions and refreshes sbt plugins, with follow-up compilation/test adjustments to accommodate tpolecat 0.5.x warning defaults and Scala 3 compiler strictness.

Changes:

Bumped SBT to 1.10.7, updated Scala versions in CI, and upgraded build plugins (including tpolecat → 0.5.3 under org.typelevel).
Adjusted scalacOptions / -Wconf suppressions and test-scope compiler options to keep cross-compilation working under the new toolchain.
Applied a Scala 3 refutable-pattern fix (@unchecked) and added/updated tracing tests and documentation notes about fiber stack-trace behavior.

Reviewed changes

Copilot reviewed 7 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
`project/build.properties`	Bumps SBT version to 1.10.7.
`project/plugins.sbt`	Updates sbt plugin versions and adds a dependency scheme override for `geny`.
`build.sbt`	Adds tpolecat-related `-Wconf` suppressions, tunes test-scope scalac options, and disables Scala 3 fatal warnings.
`.github/workflows/build.yml`	Updates Scala versions in the CI matrix.
`.jvmopts`	Removes a legacy JVM option.
`monix-execution/shared/src/main/scala/monix/execution/CancelablePromise.scala`	Scala 3 compatibility tweak for a refutable pattern binding.
`monix-eval/shared/src/main/scala/monix/eval/Task.scala`	Documents stack-trace behavior for `Task.start` / `startAndForget`.
`tracingTests/src/test/scala/tracing/TracingSuite.scala`	Adds tests asserting stack-trace isolation behavior for fibers.
`.planning/**`	Adds planning/roadmap/state docs for the maintenance effort and decisions.

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tracingTests/src/test/scala/tracing/TracingSuite.scala

build.sbt

project/plugins.sbt

build.sbt

.github/workflows/build.yml

monix-execution/shared/src/main/scala/monix/execution/CancelablePromise.scala

@unchecked

- Bump Scala to 2.13.18/3.3.7, sbt to 1.12.6 - Bump plugins: sbt-scalajs 1.20.2, sbt-scalafmt 2.5.6, kind-projector 0.13.4 - Migrate sbt-doctest to io.github.sbt-doctest 0.12.4 - Use -quickfix:cat=other-implicit-type instead of -Wconf silence - Add -Wnonunit-statement to tpolecat exclusions instead of -Wconf silence - Restore debug scalacOptions section as commented-out - Remove unnecessary -Xfatal-warnings (tpolecat 0.5.x uses -Werror) - Remove unnecessary @unchecked on CancelablePromise pattern match Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Copilot

Pull request overview

Copilot reviewed 4 out of 6 changed files in this pull request and generated 4 comments.

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project/build.properties

.github/workflows/build.yml

project/plugins.sbt

build.sbt

…bscriber

…ariables.

# Conflicts: # .github/workflows/build.yml

…ufferedSubscriber

…-dependencies # Conflicts: # .github/workflows/build.yml

mikkolaj

Generally LGTM, but:

the diff is shown in a weird way and it includes already merged changes - try pushing squashed commits before merging
description can be updated - Known issues is no longer valid.

halotukozak and others added 25 commits February 24, 2026 14:40

Fix .jvmopts for modern JDKs by removing unsupported CMSClassUnloadin…

aebeaa0

…gEnabled

Bump sbt to 1.10.7

c55330d

Bump sbt-scoverage to 2.3.1 to resolve scala-xml conflict

b7c6bf5

Bump sbt-scalajs to 1.18.2

3e83f14

Bump sbt-unidoc to 0.5.0 (org change to com.github.sbt)

d9a9cbd

Bump sbt-jmh to 0.4.7

65a0106

Bump sbt-mima-plugin to 1.1.4

c1d3daa

Bump sbt-header to 5.10.0

85cb483

Bump sbt-scalafmt to 2.5.4

031d577

Bump sbt-assembly to 2.3.1

807251c

Bump sbt-reproducible-builds to 0.32

9da2412

Bump sbt-dynver to 5.1.0 (org change to com.github.sbt)

b1d55b8

Bump sbt-git to 2.1.0 (org change to com.github.sbt)

0f8710a

Bump sbt-sonatype to 3.12.2

d365e23

Bump sbt-pgp to 2.3.1

911ea97

Add libraryDependencySchemes for geny to resolve meta-build conflict

f395995

Fix geny version conflict using VersionScheme.Always

6aeefdf

Update Scala versions to 2.12.20, 2.13.16, 3.3.5

45d359d

Fix Scala 2.13.16 compatibility and build configuration

0c9251f

- Bump kind-projector and silencer versions\n - Silence other-implicit-type warnings in 2.13\n - Revert sbt-assembly to 1.2.0 to keep shading working

Clarify Task.start/startAndForget stack tracing behavior

cb4aebe

- Explicitly state that starting a new stack trace is intentional for performance and thread-safety\n - Add verification tests in TracingSuite

Copilot AI review requested due to automatic review settings February 26, 2026 13:53

Copilot started reviewing on behalf of halotukozak February 26, 2026 13:54 View session

Remove .planning from git and add to .gitignore

cdb46e3

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Copilot AI reviewed Feb 26, 2026

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some reverts

0ecf74e

halotukozak self-assigned this Feb 26, 2026

halotukozak requested a review from mikkolaj February 26, 2026 14:01

mikkolaj reviewed Mar 23, 2026

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halotukozak requested a review from Copilot March 23, 2026 12:29

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mikkolaj reviewed Mar 23, 2026

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halotukozak added 7 commits March 25, 2026 16:01

Align formatting in plugins.sbt and remove unused scalacOptions

42ba07d

Improve null-check error messages in ReactivePublisher and ReactiveSu…

f5ac711

…bscriber

Refactor operators to explicitly define Scheduler type for implicit v…

94d7fe8

…ariables.

Refactor test suites to explicitly import Scheduler where needed.

0e77a08

Merge branch 'series/3.x-avs' into bump-dependencies

4caee57

# Conflicts: # .github/workflows/build.yml

fix: add return type to Eq instance in test suite

3d234b3

fix: add explicit Scheduler type annotation to AbstractBackPressuredB…

896756b

…ufferedSubscriber

halotukozak changed the title ~~Bump SBT 1.10.7, Scala 2.12.20/2.13.16/3.3.5, and all build plugins~~ Bump SBT 1.12.6, Scala 2.13.18/3.3.7, and all build plugins Mar 26, 2026

Merge remote-tracking branch 'origin/drop-jdk-8-support-ci' into bump…

689d308

…-dependencies # Conflicts: # .github/workflows/build.yml

mikkolaj mentioned this pull request Mar 26, 2026

Drop Java 8 from CI and increase JVM memory #13

Merged

2 tasks

mikkolaj approved these changes Mar 26, 2026

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Merge branch 'series/3.x-avs' into bump-dependencies

07c6184

halotukozak merged commit 2a585b7 into series/3.x-avs Mar 27, 2026
17 of 18 checks passed

halotukozak deleted the bump-dependencies branch March 27, 2026 09:35

halotukozak changed the title ~~Bump SBT 1.12.6, Scala 2.13.18/3.3.7, and all build plugins~~ JDK 25 compatibility: JCTools 4.x, VarHandle fencing, CI matrix expansion Mar 27, 2026

halotukozak changed the title ~~JDK 25 compatibility: JCTools 4.x, VarHandle fencing, CI matrix expansion~~ JDK 17+ compatibility: JCTools 4.x, Thread.getId nowarn, CI matrix expansion Mar 27, 2026

halotukozak changed the title ~~JDK 17+ compatibility: JCTools 4.x, Thread.getId nowarn, CI matrix expansion~~ JDK 17+ compatibility: JCTools 4.x, suppress deprecation warnings, expand CI matrix Mar 27, 2026

halotukozak changed the title ~~JDK 17+ compatibility: JCTools 4.x, suppress deprecation warnings, expand CI matrix~~ Bump SBT 1.12.6, Scala 2.13.18/3.3.7, and all build plugins Mar 27, 2026

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Bump SBT 1.12.6, Scala 2.13.18/3.3.7, and all build plugins#5

Bump SBT 1.12.6, Scala 2.13.18/3.3.7, and all build plugins#5
halotukozak merged 37 commits intoseries/3.x-avsfrom
bump-dependencies

halotukozak commented Feb 26, 2026 •

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halotukozak commented Feb 26, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Summary

Build tooling

Compiler plugins (build.sbt)

Compilation fixes

Other

Test plan

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halotukozak commented Feb 26, 2026 •

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