[release/9.0-staging] Update dependencies from dotnet/roslyn #121343

dotnet-maestro · 2025-11-04T17:20:01Z

This pull request updates the following dependencies

From https://github.com/dotnet/roslyn

Subscription: eb9df6d3-8689-4a0d-b044-4888bd74f781
Build: 20251120.7 (291695)
Date Produced: November 20, 2025 10:34:00 PM UTC
Commit: 8cafac4760a78176ef0e167bea66b97b65437930
Branch: release/dev17.14

Dependency Updates:
- From 4.12.0-3.25569.8 to 4.14.0-3.25570.7
  - Microsoft.SourceBuild.Intermediate.roslyn
  - Microsoft.CodeAnalysis
  - Microsoft.CodeAnalysis.CSharp
  - Microsoft.Net.Compilers.Toolset

…915.8 On relative base path root Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.12.0-3.25467.18 -> To Version 4.14.0-3.25465.8 Microsoft.CodeAnalysis.Analyzers From Version 3.11.0-beta1.25173.3 -> To Version 3.12.0-beta1.25465.8

steveisok · 2025-11-05T22:46:32Z

Failures with Cannot implicitly convert type 'System.ReadOnlySpan<int>' to 'System.Span<int>' seem related.

/cc @jeffhandley

sbomer · 2025-11-06T17:50:06Z

@copilot fix the error:
src/libraries/System.Text.Json/src/System/Text/Json/Document/JsonDocument.MetadataDb.cs(384,39): error CS0029: (NETCORE_ENGINEERING_TELEMETRY=Build) Cannot implicitly convert type 'System.ReadOnlySpan' to 'System.Span'

Copilot · 2025-11-06T17:50:13Z

@sbomer I've opened a new pull request, #121414, to work on those changes. Once the pull request is ready, I'll request review from you.

…121414) The Roslyn 4.14.0 compiler update introduced stricter type checking for `MemoryMarshal.Cast` when called directly on arrays, now returning `ReadOnlySpan<T>` instead of `Span<T>`. ## Changes - **JsonDocument.MetadataDb.cs**: Explicitly convert byte array to `Span<byte>` before casting to `Span<int>` to preserve write access ```csharp // Before Span<int> newDbInts = MemoryMarshal.Cast<byte, int>(newDatabase); // After Span<int> newDbInts = MemoryMarshal.Cast<byte, int>(newDatabase.AsSpan()); ``` The writable span is required since the code modifies elements via `newDbInts[i] -= locationOffset`.  --- 💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more [Copilot coding agent tips](https://gh.io/copilot-coding-agent-tips) in the docs. --------- Co-authored-by: copilot-swe-agent[bot] <[email protected]> Co-authored-by: sbomer <[email protected]>

steveisok · 2025-11-10T16:44:04Z

@copilot fix the error:

src/libraries/System.Runtime.Numerics/src/System/Numerics/BigInteger.cs(387,65): error CS1503: (NETCORE_ENGINEERING_TELEMETRY=Build) Argument 1: cannot convert from 'System.ReadOnlySpan' to 'System.Span'

Copilot · 2025-11-10T16:44:16Z

@steveisok I've opened a new pull request, #121501, to work on those changes. Once the pull request is ready, I'll request review from you.

…110.12 On relative base path root Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.12.0-3.25467.18 -> To Version 4.14.0-3.25560.12 Microsoft.CodeAnalysis.Analyzers From Version 3.11.0-beta1.25173.3 -> To Version 3.12.0-beta1.25560.12

Commit message of the cherry-picked commit (note this branch now references newer versions): Update dependencies from dotnet/roslyn (#110105) * Update dependencies from https://github.com/dotnet/roslyn build 20241122.2 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-2.24572.2 * Update dependencies from https://github.com/dotnet/roslyn build 20241122.15 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-2.24572.15 * Update dependencies from https://github.com/dotnet/roslyn build 20241124.5 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-2.24574.5 * Update dependencies from https://github.com/dotnet/roslyn build 20241125.18 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24575.18 * Update dependencies from https://github.com/dotnet/roslyn build 20241127.2 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24577.2 * Update dependencies from https://github.com/dotnet/roslyn build 20241128.2 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24578.2 * Update dependencies from https://github.com/dotnet/roslyn build 20241128.3 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24578.3 * Update dependencies from https://github.com/dotnet/roslyn build 20241130.1 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24580.1 * Update dependencies from https://github.com/dotnet/roslyn build 20241130.2 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24580.2 * Update dependencies from https://github.com/dotnet/roslyn build 20241201.2 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24601.2 * Update dependencies from https://github.com/dotnet/roslyn build 20241202.26 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.13.0-2.24570.4 -> To Version 4.13.0-3.24602.26 * Use explicit AsSpan * Fix LibraryImportGenerator.UnitTests * Fix regex tests * Adjust trimming test for new codegen With this roslyn update, the generated iterator state machine for this test includes a Dispose method which assigns null to the array, inhibiting dataflow analysis. --------- Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: Sven Boemer <[email protected]>

sbomer · 2025-11-13T22:38:21Z

@copilot fix this error: src/libraries/System.Net.Http/src/System/Net/Http/Headers/HttpHeaders.cs(1209,42): error CS8620: (NETCORE_ENGINEERING_TELEMETRY=Build) Argument of type 'string[]' cannot be used for parameter 'values' of type 'Span<string?>' in 'void HttpHeaders.ReadStoreValues<string?>(Span<string?> values, object? storeValue, HttpHeaderParser? parser, ref int currentIndex)' due to differences in the nullability of reference types.

Copilot · 2025-11-13T22:38:29Z

@sbomer I've opened a new pull request, #121601, to work on those changes. Once the pull request is ready, I'll request review from you.

…121601) Fixes compilation error introduced by Roslyn 4.14.0's stricter type checking for array-to-span conversions. main PR: #121343 # Description Roslyn 4.14.0 no longer allows implicit conversion from `string[]` to `Span<string?>`. Fixed by explicitly converting arrays to spans in `HttpHeaders.GetStoreValuesIntoStringArray`: ```csharp // Before ReadStoreValues<object?>(values, info.ParsedAndInvalidValues, descriptor.Parser, ref currentIndex); // After ReadStoreValues<object?>(values.AsSpan(), info.ParsedAndInvalidValues, descriptor.Parser, ref currentIndex); ``` # Customer Impact Blocks servicing release builds. No runtime behavior change. # Regression No - compiler enforcement tightening from dependency update. # Testing Verified compilation fix. No functional changes to test. # Risk Minimal. Surgical two-line change converts array to span where method signature already required it. Identical pattern to fixes in #121414 and BigInteger.cs (46bb931).  --- 💬 We'd love your input! Share your thoughts on Copilot coding agent in our [2 minute survey](https://gh.io/copilot-coding-agent-survey). --------- Co-authored-by: copilot-swe-agent[bot] <[email protected]> Co-authored-by: sbomer <[email protected]>

Commit message of the cherry-picked commit (note this branch now references newer versions): Update Roslyn to 4.13.0-1.24510.9 (#109467) * Update Roslyn to 4.13.0-1.24510.9 * Update roslyn-analyzers * Fix first-class Span breaks * Remove LangVersion=latest * Fixup more places * Updates and fixes --------- Co-authored-by: Jan Jones <[email protected]>

…a74f-9a77-4837-ae86-0b0dfcd7a5bd

…120.7 On relative base path root Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.12.0-3.25569.8 -> To Version 4.14.0-3.25570.7 Microsoft.CodeAnalysis.Analyzers From Version 3.11.0-beta1.25173.3 -> To Version 3.12.0-beta1.25570.7

Commit message of the cherry-picked commit (note this branch now references newer versions): [main] Update dependencies from dotnet/roslyn (#112937) * Update dependencies from https://github.com/dotnet/roslyn build 20250225.8 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25125.8 * Update dependencies from https://github.com/dotnet/roslyn build 20250226.5 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25126.5 * Update dependencies from https://github.com/dotnet/roslyn build 20250303.7 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25153.7 * Update dependencies from https://github.com/dotnet/roslyn build 20250304.7 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25154.7 * Update dependencies from https://github.com/dotnet/roslyn build 20250305.15 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25155.15 * Update dependencies from https://github.com/dotnet/roslyn build 20250307.4 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25157.4 * Update dependencies from https://github.com/dotnet/roslyn build 20250310.11 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25160.11 * Update dependencies from https://github.com/dotnet/roslyn build 20250311.7 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25161.7 * Update dependencies from https://github.com/dotnet/roslyn build 20250312.12 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25162.12 * Update dependencies from https://github.com/dotnet/roslyn build 20250313.9 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25163.9 * Update dependencies from https://github.com/dotnet/roslyn build 20250314.6 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25164.6 * Update dependencies from https://github.com/dotnet/roslyn build 20250314.10 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25164.10 * Update dependencies from https://github.com/dotnet/roslyn build 20250317.7 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25167.7 * Update dependencies from https://github.com/dotnet/roslyn build 20250318.15 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25168.15 * Update dependencies from https://github.com/dotnet/roslyn build 20250319.7 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25169.7 * Update dependencies from https://github.com/dotnet/roslyn build 20250320.13 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25170.13 * Update dependencies from https://github.com/dotnet/roslyn build 20250321.23 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25171.23 * Update dependencies from https://github.com/dotnet/roslyn build 20250321.27 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25171.27 * Update dependencies from https://github.com/dotnet/roslyn build 2025032.10 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25174.10 * Update dependencies from https://github.com/dotnet/roslyn build 20250325.12 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25175.12 * Update dependencies from https://github.com/dotnet/roslyn build 20250326.10 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25176.10 * Update dependencies from https://github.com/dotnet/roslyn build 20250327.9 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25177.9 * Update dependencies from https://github.com/dotnet/roslyn build 20250328.1 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25178.1 * Update dependencies from https://github.com/dotnet/roslyn build 20250329.1 Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.14.0-2.25121.3 -> To Version 4.14.0-3.25179.1 * Fix compiler warning around unused fields - needed for Unsafe. * Allow prebuilts for roslyn's dependencies --------- Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: Larry Ewing <[email protected]> Co-authored-by: Eric StJohn <[email protected]>

…120.7 On relative base path root Microsoft.SourceBuild.Intermediate.roslyn , Microsoft.CodeAnalysis , Microsoft.CodeAnalysis.CSharp , Microsoft.Net.Compilers.Toolset From Version 4.12.0-3.25569.8 -> To Version 4.14.0-3.25570.7

This was referenced Nov 4, 2025

Intermittent build failure in AfterSourceBuild: "Could not write state file" #76488

Open

[android][arm64] System.Net.Sockets.Tests.SendTo_SyncForceNonBlocking.Datagram_UDP_ShouldImplicitlyBindLocalEndpoint fails with NetworkUnreachable #120526

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steveisok added the area-codeflow for labeling automated codeflow label Nov 5, 2025

sbomer assigned Copilot Nov 6, 2025

Copilot AI mentioned this pull request Nov 6, 2025

Fix MemoryMarshal.Cast implicit conversion error after Roslyn update #121414

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Copilot AI mentioned this pull request Nov 10, 2025

Fix MemoryMarshal implicit conversion errors after Roslyn 4.14.0 update #121501

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steveisok and others added 2 commits November 10, 2025 15:07

Fix conversion error

46bb931

build-analysis bot mentioned this pull request Nov 11, 2025

Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. dotnet/dnceng#5922

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3 tasks

sbomer requested a review from marek-safar as a code owner November 11, 2025 18:53

dotnet-policy-service bot added the linkable-framework Issues associated with delivering a linker friendly framework label Nov 11, 2025

Copilot AI mentioned this pull request Nov 13, 2025

Fix CS8620 compiler error in HttpHeaders after Roslyn 4.14.0 update #121601

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Copilot AI and others added 3 commits November 14, 2025 09:26

Merge branch 'release/9.0-staging' into darc-release/9.0-staging-4da6…

74beff9

…a74f-9a77-4837-ae86-0b0dfcd7a5bd

sbomer mentioned this pull request Nov 20, 2025

Update SDK to 9.0.308 #121852

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sbomer and others added 4 commits November 20, 2025 15:36

Use Enumerable.Reverse for clarity in PermuteDimensions

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