[manual] Merge release/9.0-staging to release/9.0 by jozkee · Pull Request #125467 · dotnet/runtime

jozkee · 2026-03-12T00:00:25Z

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…et#124245) I detected changes in the release/9.0 branch which have not been merged yet to release/9.0-staging. I'm a robot and am configured to help you automatically keep release/9.0-staging up to date, so I've opened this PR. This PR merges commits made on release/9.0 by the following committers: * wfurt * vseanreesermsft * bartonjs ## Instructions for merging from UI This PR will not be auto-merged. When pull request checks pass, complete this PR by creating a merge commit, *not* a squash or rebase commit. <img alt="merge button instructions" src="https://i.imgur.com/GepcNJV.png" width="300" /> If this repo does not allow creating merge commits from the GitHub UI, use command line instructions. ## Instructions for merging via command line Run these commands to merge this pull request from the command line. ``` sh git fetch git checkout release/9.0 git pull --ff-only git checkout release/9.0-staging git pull --ff-only git merge --no-ff release/9.0 # If there are merge conflicts, resolve them and then run git merge --continue to complete the merge # Pushing the changes to the PR branch will re-trigger PR validation. git push https://github.com/dotnet/runtime HEAD:merge/release/9.0-to-release/9.0-staging ``` <details> <summary>or if you are using SSH</summary> ``` git push git@github.com:dotnet/runtime HEAD:merge/release/9.0-to-release/9.0-staging ``` </details> After PR checks are complete push the branch ``` git push ``` ## Instructions for resolving conflicts :warning: If there are merge conflicts, you will need to resolve them manually before merging. You can do this [using GitHub][resolve-github] or using the [command line][resolve-cli]. [resolve-github]: https://help.github.com/articles/resolving-a-merge-conflict-on-github/ [resolve-cli]: https://help.github.com/articles/resolving-a-merge-conflict-using-the-command-line/ ## Instructions for updating this pull request Contributors to this repo have permission update this pull request by pushing to the branch 'merge/release/9.0-to-release/9.0-staging'. This can be done to resolve conflicts or make other changes to this pull request before it is merged. The provided examples assume that the remote is named 'origin'. If you have a different remote name, please replace 'origin' with the name of your remote. ``` git fetch git checkout -b merge/release/9.0-to-release/9.0-staging origin/release/9.0-staging git pull https://github.com/dotnet/runtime merge/release/9.0-to-release/9.0-staging (make changes) git commit -m "Updated PR with my changes" git push https://github.com/dotnet/runtime HEAD:merge/release/9.0-to-release/9.0-staging ``` <details> <summary>or if you are using SSH</summary> ``` git fetch git checkout -b merge/release/9.0-to-release/9.0-staging origin/release/9.0-staging git pull git@github.com:dotnet/runtime merge/release/9.0-to-release/9.0-staging (make changes) git commit -m "Updated PR with my changes" git push git@github.com:dotnet/runtime HEAD:merge/release/9.0-to-release/9.0-staging ``` </details> Contact .NET Core Engineering (dotnet/dnceng) if you have questions or issues. Also, if this PR was generated incorrectly, help us fix it. See https://github.com/dotnet/arcade/blob/main/.github/workflows/scripts/inter-branch-merge.ps1. --------- Co-authored-by: Mirroring <dnceng-mirroring@microsoft.com> Co-authored-by: Jeremy Barton <jbarton@microsoft.com> Co-authored-by: Sean Reeser <v-seanreeser@microsoft.com> Co-authored-by: Tomas Weinfurt <tweinfurt@yahoo.com> Co-authored-by: dotnet-maestro[bot] <42748379+dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: David Cantú <dacantu@microsoft.com> Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: richlander <2608468+richlander@users.noreply.github.com> Co-authored-by: Miha Zupan <mihazupan.zupan1@gmail.com> Co-authored-by: Sven Boemer <sbomer@gmail.com> Co-authored-by: Vladimir Sadov <vsadov@microsoft.com> Co-authored-by: Steve Pfister <steveisok@users.noreply.github.com> Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com> Co-authored-by: Jeff Handley <jeffhandley@users.noreply.github.com> Co-authored-by: elinor-fung <47805090+elinor-fung@users.noreply.github.com> Co-authored-by: Elinor Fung <elfung@microsoft.com> Co-authored-by: Andy Gocke <angocke@microsoft.com> Co-authored-by: Eric StJohn <ericstj@microsoft.com> Co-authored-by: Matous Kozak <matouskozak@seznam.cz> Co-authored-by: Filip Navara <filip.navara@gmail.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Larry Ewing <lewing@microsoft.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Jeremy Koritzinsky <jekoritz@microsoft.com> Co-authored-by: Marie Píchová <11718369+ManickaP@users.noreply.github.com> Co-authored-by: Rahul Bhandari <rbhanda@microsoft.com> Co-authored-by: Juan Hoyos <19413848+hoyosjs@users.noreply.github.com> Co-authored-by: jozkee <16040868+jozkee@users.noreply.github.com>

…dotnet#124458) This pull request updates the following dependencies [marker]: <> (Begin:b458125c-6cf0-41ea-981d-2709b660d5c5) ## From https://github.com/dotnet/hotreload-utils - **Subscription**: [b458125c-6cf0-41ea-981d-2709b660d5c5](https://maestro.dot.net/subscriptions?search=b458125c-6cf0-41ea-981d-2709b660d5c5) - **Build**: [20260302.4](https://dev.azure.com/dnceng/internal/_build/results?buildId=2916199) ([304006](https://maestro.dot.net/channel/3883/github:dotnet:hotreload-utils/build/304006)) - **Date Produced**: March 2, 2026 3:37:03 PM UTC - **Commit**: [2a70fdb0e55455dc067a6f24582b5d9ed75ed373](dotnet/hotreload-utils@2a70fdb) - **Branch**: [release/9.0](https://github.com/dotnet/hotreload-utils/tree/release/9.0) [DependencyUpdate]: <> (Begin) - **Dependency Updates**: - From [9.0.0-alpha.0.25625.4 to 9.0.0-alpha.0.26152.4][2] - Microsoft.DotNet.HotReload.Utils.Generator.BuildTool [2]: dotnet/hotreload-utils@6eb5041...2a70fdb [DependencyUpdate]: <> (End) [marker]: <> (End:b458125c-6cf0-41ea-981d-2709b660d5c5) --------- Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

…24209) This pull request updates the following dependencies [marker]: <> (Begin:b609d3b5-ab6f-473c-9ce1-f266baef16fc) ## From https://github.com/dotnet/cecil - **Subscription**: [b609d3b5-ab6f-473c-9ce1-f266baef16fc](https://maestro.dot.net/subscriptions?search=b609d3b5-ab6f-473c-9ce1-f266baef16fc) - **Build**: [20260222.3](https://dev.azure.com/dnceng/internal/_build/results?buildId=2910328) ([302882](https://maestro.dot.net/channel/3883/github:dotnet:cecil/build/302882)) - **Date Produced**: February 23, 2026 5:45:08 AM UTC - **Commit**: [4fe10b2349082f474928ac1b97ce207b70dc2307](dotnet/cecil@4fe10b2) - **Branch**: [release/9.0](https://github.com/dotnet/cecil/tree/release/9.0) [DependencyUpdate]: <> (Begin) - **Dependency Updates**: - From [0.11.5-alpha.25628.2 to 0.11.5-alpha.26122.3][3] - Microsoft.SourceBuild.Intermediate.cecil - Microsoft.DotNet.Cecil [3]: dotnet/cecil@1f9985e...4fe10b2 [DependencyUpdate]: <> (End) [marker]: <> (End:b609d3b5-ab6f-473c-9ce1-f266baef16fc) --------- Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

…t#124165) This pull request updates the following dependencies [marker]: <> (Begin:077f423f-1332-4108-a2ea-08dcc66548e6) ## From https://github.com/dotnet/xharness - **Subscription**: [077f423f-1332-4108-a2ea-08dcc66548e6](https://maestro.dot.net/subscriptions?search=077f423f-1332-4108-a2ea-08dcc66548e6) - **Build**: [20260217.1](https://dev.azure.com/dnceng/internal/_build/results?buildId=2906325) ([302122](https://maestro.dot.net/channel/2/github:dotnet:xharness/build/302122)) - **Date Produced**: February 17, 2026 4:29:14 PM UTC - **Commit**: [0eeaa60169fe6a95932d29d822e20eb225ce0143](dotnet/xharness@0eeaa60) - **Branch**: [main](https://github.com/dotnet/xharness/tree/main) [DependencyUpdate]: <> (Begin) - **Dependency Updates**: - From [9.0.0-prerelease.25615.2 to 11.0.0-prerelease.26117.1][3] - Microsoft.DotNet.XHarness.CLI - Microsoft.DotNet.XHarness.TestRunners.Common - Microsoft.DotNet.XHarness.TestRunners.Xunit [3]: dotnet/xharness@c26361a...0eeaa60 [DependencyUpdate]: <> (End) [marker]: <> (End:077f423f-1332-4108-a2ea-08dcc66548e6) --------- Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>

…124841) This pull request updates the following dependencies [marker]: <> (Begin:943c2154-7e47-4fed-bb40-3e772747daf7) ## From https://github.com/dotnet/arcade - **Subscription**: [943c2154-7e47-4fed-bb40-3e772747daf7](https://maestro.dot.net/subscriptions?search=943c2154-7e47-4fed-bb40-3e772747daf7) - **Build**: [20260223.3](https://dev.azure.com/dnceng/internal/_build/results?buildId=2910552) ([302931](https://maestro.dot.net/channel/5175/github:dotnet:arcade/build/302931)) - **Date Produced**: February 23, 2026 12:35:47 PM UTC - **Commit**: [29a2184303379b9840b70e7cdb2faa0f39833b89](dotnet/arcade@29a2184) - **Branch**: [release/9.0](https://github.com/dotnet/arcade/tree/release/9.0) [DependencyUpdate]: <> (Begin) - **Dependency Updates**: - From [9.0.0-beta.26070.1 to 9.0.0-beta.26123.3][1] - Microsoft.SourceBuild.Intermediate.arcade - Microsoft.DotNet.Arcade.Sdk - Microsoft.DotNet.Build.Tasks.Archives - Microsoft.DotNet.Build.Tasks.Feed - Microsoft.DotNet.Build.Tasks.Installers - Microsoft.DotNet.Build.Tasks.Packaging - Microsoft.DotNet.Build.Tasks.TargetFramework - Microsoft.DotNet.Build.Tasks.Templating - Microsoft.DotNet.Build.Tasks.Workloads - Microsoft.DotNet.CodeAnalysis - Microsoft.DotNet.GenAPI - Microsoft.DotNet.GenFacades - Microsoft.DotNet.Helix.Sdk - Microsoft.DotNet.PackageTesting - Microsoft.DotNet.RemoteExecutor - Microsoft.DotNet.SharedFramework.Sdk - Microsoft.DotNet.VersionTools.Tasks - Microsoft.DotNet.XliffTasks - Microsoft.DotNet.XUnitExtensions - From [2.9.0-beta.26070.1 to 2.9.0-beta.26123.3][1] - Microsoft.DotNet.XUnitAssert - Microsoft.DotNet.XUnitConsoleRunner [1]: dotnet/arcade@9b9436a...29a2184 [DependencyUpdate]: <> (End) [marker]: <> (End:943c2154-7e47-4fed-bb40-3e772747daf7) Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

@BrzVlad

… objects (dotnet#125212) Backport of dotnet#125116 to release/9.0-staging /cc @BrzVlad ## Customer Impact - [x] Customer reported - [ ] Found internally In some cases, cards marked for non-array LOS objects (objects with size greater than 8K) were being ignored. This means that the GC could fail to observe that some object refs were stored inside these large objects. This can result in GC crashes or other undefined behavior. This can impact all mono workloads. This issue was confirmed to be hit by a customer who also investigated it via a GC debug flag. There are other undiagnosed GC crashes that might hopefully be fixed by this. ## Regression - [ ] Yes - [x] No ## Testing Was able to create a console app reproducing this bug. Validated the fix. ## Risk Low. The fix just does an address alignment, in order to scan correctly an additional card. Co-authored-by: Vlad Brezae <brezaevlad@gmail.com>

Copilot

Pull request overview

Merges changes from release/9.0-staging into release/9.0, bringing in dependency/version updates, COSE decoding/signing improvements with added tests, and a handful of targeted runtime and test adjustments.

Changes:

Update toolset/dependency versions (Arcade/Helix, Roslyn, xharness, emsdk, Cecil) and related source-build configuration.
Improve COSE header decoding/validation (including indefinite-length handling) and expand cryptography test coverage accordingly.
Apply small runtime/test fixes (card table scanning alignment; stabilize Windows symbolic link tests; minor test/annotation tweaks).

Reviewed changes

Copilot reviewed 19 out of 20 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/tools/illink/test/Mono.Linker.Tests.Cases/DataFlow/CompilerGeneratedCodeAccessedViaReflection.cs	Enables an `UnexpectedWarning` annotation for updated compiler codegen behavior.
src/tools/illink/test/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.Generator.csproj	Switches generator to use the “Latest VS” Roslyn package version property.
src/mono/mono/sgen/sgen-cardtable.c	Aligns scanning start address to card boundary before iterating cards.
src/libraries/System.Text.RegularExpressions/tests/FunctionalTests/UpgradeToGeneratedRegexAnalyzerTests.cs	Updates expected fixed-code strings for top-level-statement scenarios.
src/libraries/System.Security.Cryptography.Cose/tests/CoseMessageTests.Sign.CustomHeaderMaps.cs	Expands signing tests to cover definite vs. indefinite-length critical header encodings.
src/libraries/System.Security.Cryptography.Cose/tests/CoseMessageTests.DecodeSign1.cs	Adds decode tests for critical header validation across detached/indefinite variants.
src/libraries/System.Security.Cryptography.Cose/tests/CoseMessageTests.DecodeMultiSign.cs	Adds decode tests for critical header validation across detached/indefinite variants.
src/libraries/System.Security.Cryptography.Cose/src/System/Security/Cryptography/Cose/CoseMessage.cs	Updates CBOR map/array decoding to handle indefinite-length and improves exception shaping.
src/libraries/System.Runtime/tests/System.IO.FileSystem.Tests/Base/SymbolicLinks/BaseSymbolicLinks.cs	Avoids flaky UNC + `returnFinalTarget=true` cases on Windows by limiting that permutation.
src/libraries/System.Runtime.InteropServices/tests/LibraryImportGenerator.UnitTests/*.cs	Removes extra blank lines in test baselines.
global.json	Updates Arcade/Helix/SharedFramework SDK versions.
eng/common/core-templates/job/source-build.yml	Updates internal source-build pool image name.
eng/Versions.props	Updates multiple dependency version properties (Roslyn, Arcade, xharness, Cecil, emsdk, LLVM/JIT tools).
eng/Version.Details.xml	Updates pinned dependency versions and SHAs accordingly.
eng/SourceBuildPrebuiltBaseline.xml	Adds ignore patterns for Roslyn dependency packages in source-build baseline.
NuGet.config	Updates darc-managed emsdk feed entry to new commit-based key.
.config/dotnet-tools.json	Bumps `microsoft.dotnet.xharness.cli` tool version.

Comments suppressed due to low confidence (1)

src/libraries/System.Security.Cryptography.Cose/tests/CoseMessageTests.DecodeSign1.cs:1

DetachedIndefiniteHex is defined but never selected: (true, true) currently maps to DetachedDefiniteHex. This makes the “detached + indefinite length” test case exercise the wrong payload; update the switch arm to use DetachedIndefiniteHex for (true, true).

// Licensed to the .NET Foundation under one or more agreements.

...System.Text.RegularExpressions/tests/FunctionalTests/UpgradeToGeneratedRegexAnalyzerTests.cs

...aries/System.Security.Cryptography.Cose/src/System/Security/Cryptography/Cose/CoseMessage.cs

@liveans

dotnet#123661) Backport of dotnet#123485 to release/9.0-staging /cc @liveans Increasing RFC compliance for WebSocket ## Customer Impact RFC compliance ## Regression No ## Testing Manual verification + automated tests ## Risk Low, the change only affects non‑compliant WebSocket clients sending unmasked frames, which is explicitly disallowed by RFC 6455. No behavior change is expected for compliant clients. --------- Co-authored-by: Ahmet İbrahim Aksoy <aaksoy@microsoft.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Copilot

Pull request overview

Copilot reviewed 16 out of 17 changed files in this pull request and generated 2 comments.

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eng/Versions.props

eng/Version.Details.xml

dotnet-maestro bot and others added 7 commits February 16, 2026 08:38

[release/9.0-staging] Update dependencies from dotnet/roslyn (dotnet#…

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…121343)

jozkee requested a review from marek-safar as a code owner March 12, 2026 00:00

jozkee added the NO-SQUASH The PR should not be squashed label Mar 12, 2026

jozkee requested a review from BrzVlad as a code owner March 12, 2026 00:00

Copilot AI review requested due to automatic review settings March 12, 2026 00:00

jozkee requested a review from lambdageek as a code owner March 12, 2026 00:00

jozkee added Servicing-approved Approved for servicing release area-codeflow for labeling automated codeflow labels Mar 12, 2026

dotnet-policy-service bot added the linkable-framework Issues associated with delivering a linker friendly framework label Mar 12, 2026

dotnet-policy-service bot assigned jozkee Mar 12, 2026

Copilot AI reviewed Mar 12, 2026

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...System.Text.RegularExpressions/tests/FunctionalTests/UpgradeToGeneratedRegexAnalyzerTests.cs Show resolved Hide resolved

...aries/System.Security.Cryptography.Cose/src/System/Security/Cryptography/Cose/CoseMessage.cs Show resolved Hide resolved

Copilot started reviewing on behalf of jozkee March 12, 2026 00:08 View session

Merge branch 'release/9.0' into release/9.0-staging

4b47477

jozkee requested review from jeffhandley and tarekgh March 12, 2026 00:22

wfurt approved these changes Mar 12, 2026

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Copilot AI review requested due to automatic review settings March 13, 2026 00:48

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Copilot started reviewing on behalf of wfurt March 13, 2026 00:54 View session

jozkee removed the linkable-framework Issues associated with delivering a linker friendly framework label Mar 13, 2026

dotnet-policy-service bot added the linkable-framework Issues associated with delivering a linker friendly framework label Mar 13, 2026

This was referenced Mar 13, 2026

Unable to pull image from mcr.microsoft.com #117164

Open

[browser] HalfTests.ExplicitConversion_FromSingle failing due to NaN != NaN #103347

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wfurt merged commit 76cf203 into dotnet:release/9.0 Mar 13, 2026
158 of 168 checks passed

jozkee deleted the release/9.0-staging branch March 13, 2026 16:13

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[manual] Merge release/9.0-staging to release/9.0#125467

[manual] Merge release/9.0-staging to release/9.0#125467
wfurt merged 9 commits intodotnet:release/9.0from
jozkee:release/9.0-staging

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