Update to .NET 11 by costellobot · Pull Request #2821 · martincostello/adventofcode

costellobot · 2026-02-12T15:46:51Z

Summary 🚀

Update to .NET 11.

Changes 📝

Update .NET SDK to 11.0.100
Update container base images
Update target framework to net11.0
Update NuGet package versions for .NET 11.0
Fix IDE0028 warnings
Fix IDE0031 warnings
Fix IDE0370 warnings
Fix IDE0390 warnings
Fix IDE0391 warnings

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.55%. Comparing base (d1f2aae) to head (4b1900e).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2821   +/-   ##
=======================================
  Coverage   58.55%   58.55%           
=======================================
  Files         127      127           
  Lines        3204     3204           
  Branches      482      466   -16     
=======================================
  Hits         1876     1876           
  Misses       1328     1328

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Cherry-pick code analyzer fixes/suggestions from #2821.

martincostello · 2026-02-12T16:33:31Z

@costellobot rebase

martincostello · 2026-04-25T16:14:13Z

@costellobot rebase

martincostello · 2026-06-07T16:34:44Z

@costellobot rebase

Update to .NET 11 with .NET SDK version 11.0.100-preview.1.26104.118. Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com>

Fix build by using `LangVersion=preview` to support use of Collection Expression Arguments.

Update leftover references to `net10.0`.

* Update .NET SDK Update .NET SDK to version 11.0.100-preview.2.26159.112. --- updated-dependencies: - dependency-name: Microsoft.NET.Sdk dependency-version: 11.0.100-preview.2.26159.112 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> * Bump .NET NuGet packages Bumps .NET dependencies to their latest versions for the .NET 11.0.100-preview.2.26159.112 SDK. Bumps Microsoft.AspNetCore.Mvc.Testing from 11.0.0-preview.1.26104.118 to 11.0.0-preview.2.26159.112. Bumps Microsoft.AspNetCore.OpenApi from 11.0.0-preview.1.26104.118 to 11.0.0-preview.2.26159.112. Bumps Microsoft.Extensions.Caching.Memory from 11.0.0-preview.1.26104.118 to 11.0.0-preview.2.26159.112. --- updated-dependencies: - dependency-name: Microsoft.AspNetCore.Mvc.Testing dependency-version: 11.0.0-preview.2.26159.112 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.AspNetCore.OpenApi dependency-version: 11.0.0-preview.2.26159.112 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.Extensions.Caching.Memory dependency-version: 11.0.0-preview.2.26159.112 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> * Fix build - Update Microsoft.OpenApi. - Use overloads that accept a `StringComparison`. - Suppress false positive for `CA1517`. * Apply suggestions from code review Add reference to issue. --------- Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> Co-authored-by: martincostello <martin@martincostello.com>

Fix benchmarks by using latest CI build of BenchmarkDotNet.

* Update .NET SDK Update .NET SDK to version 11.0.100-preview.3.26207.106. --- updated-dependencies: - dependency-name: Microsoft.NET.Sdk dependency-version: 11.0.100-preview.3.26207.106 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> * Bump .NET NuGet packages Bumps .NET dependencies to their latest versions for the .NET 11.0.100-preview.3.26207.106 SDK. Bumps Microsoft.AspNetCore.Mvc.Testing from 11.0.0-preview.2.26159.112 to 11.0.0-preview.3.26207.106. Bumps Microsoft.AspNetCore.OpenApi from 11.0.0-preview.2.26159.112 to 11.0.0-preview.3.26207.106. Bumps Microsoft.Extensions.Caching.Memory from 11.0.0-preview.2.26159.112 to 11.0.0-preview.3.26207.106. --- updated-dependencies: - dependency-name: Microsoft.AspNetCore.Mvc.Testing dependency-version: 11.0.0-preview.3.26207.106 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.AspNetCore.OpenApi dependency-version: 11.0.0-preview.3.26207.106 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.Extensions.Caching.Memory dependency-version: 11.0.0-preview.3.26207.106 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> --------- Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com>

* Update .NET SDK Update .NET SDK to version 11.0.100-preview.4.26230.115. --- updated-dependencies: - dependency-name: Microsoft.NET.Sdk dependency-version: 11.0.100-preview.4.26230.115 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> * Bump .NET NuGet packages Bumps .NET dependencies to their latest versions for the .NET 11.0.100-preview.4.26230.115 SDK. Bumps Microsoft.AspNetCore.Mvc.Testing from 11.0.0-preview.3.26207.106 to 11.0.0-preview.4.26230.115. Bumps Microsoft.AspNetCore.OpenApi from 11.0.0-preview.3.26207.106 to 11.0.0-preview.4.26230.115. Bumps Microsoft.Extensions.Caching.Memory from 11.0.0-preview.3.26207.106 to 11.0.0-preview.4.26230.115. --- updated-dependencies: - dependency-name: Microsoft.AspNetCore.Mvc.Testing dependency-version: 11.0.0-preview.4.26230.115 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.AspNetCore.OpenApi dependency-version: 11.0.0-preview.4.26230.115 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.Extensions.Caching.Memory dependency-version: 11.0.0-preview.4.26230.115 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> * Update BenchmarkDotNet Update to a version that is still available. --------- Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> Co-authored-by: Martin Costello <martin@martincostello.com>

Update BenchmarkDotNet.

Remove `rollForward` to workaround actions/setup-dotnet issue and use a version of BenchmarkDotNet that exists.

* Update .NET SDK Update .NET SDK to version 11.0.100-preview.5.26302.115. --- updated-dependencies: - dependency-name: Microsoft.NET.Sdk dependency-version: 11.0.100-preview.5.26302.115 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> * Bump .NET NuGet packages Bumps .NET dependencies to their latest versions for the .NET 11.0.100-preview.5.26302.115 SDK. Bumps Microsoft.AspNetCore.Mvc.Testing from 11.0.0-preview.4.26230.115 to 11.0.0-preview.5.26302.115. Bumps Microsoft.AspNetCore.OpenApi from 11.0.0-preview.4.26230.115 to 11.0.0-preview.5.26302.115. Bumps Microsoft.Extensions.Caching.Memory from 11.0.0-preview.4.26230.115 to 11.0.0-preview.5.26302.115. --- updated-dependencies: - dependency-name: Microsoft.AspNetCore.Mvc.Testing dependency-version: 11.0.0-preview.5.26302.115 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.AspNetCore.OpenApi dependency-version: 11.0.0-preview.5.26302.115 dependency-type: direct:production update-type: version-update:semver-major - dependency-name: Microsoft.Extensions.Caching.Memory dependency-version: 11.0.0-preview.5.26302.115 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com> --------- Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com>

Update Microsoft.OpenApi 3.7.0.

Enable use of runtime async.

Do not overwrite `Features`.

costellobot added .NET Pull requests that update .NET code dependencies Pull requests that update a dependency file enhancement labels Feb 12, 2026

github-advanced-security AI found potential problems Feb 12, 2026

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Comment thread src/AdventOfCode/Puzzles/Y2021/Day18.cs Fixed

Comment thread src/AdventOfCode/Puzzles/Y2021/Day18.cs Fixed

martincostello added a commit that referenced this pull request Feb 12, 2026

.NET 11 preparation

de52d51

Cherry-pick code analyzer fixes/suggestions from #2821.

martincostello mentioned this pull request Feb 12, 2026

.NET 11 preparation #2822

Merged

martincostello added a commit that referenced this pull request Feb 12, 2026

.NET 11 preparation (#2822)

049713e

Cherry-pick code analyzer fixes/suggestions from #2821.

martincostello force-pushed the dotnet-vnext branch from 42cb147 to bf6a224 Compare February 12, 2026 16:34

martincostello force-pushed the dotnet-vnext branch from bf6a224 to 6dcfda0 Compare March 2, 2026 18:54

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martincostello force-pushed the dotnet-vnext branch from adbb4ce to afdff3a Compare March 20, 2026 21:03

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martincostello force-pushed the dotnet-vnext branch from 0e0a758 to 1c6a2c5 Compare May 13, 2026 17:46

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martincostello force-pushed the dotnet-vnext branch 2 times, most recently from 226f505 to b09c429 Compare June 10, 2026 15:40

costellobot and others added 10 commits June 10, 2026 18:05

Update to .NET 11

ba58774

Update to .NET 11 with .NET SDK version 11.0.100-preview.1.26104.118. Signed-off-by: costellobot <102549341+costellobot@users.noreply.github.com>

Use C# 15

6025bcc

Fix build by using `LangVersion=preview` to support use of Collection Expression Arguments.

Update references

72745d6

Update leftover references to `net10.0`.

Fix benchmarks

1725f86

Fix benchmarks by using latest CI build of BenchmarkDotNet.

Fix build

3dd94fd

Update BenchmarkDotNet.

Fix build

5374a46

Remove `rollForward` to workaround actions/setup-dotnet issue and use a version of BenchmarkDotNet that exists.

martincostello force-pushed the dotnet-vnext branch from b09c429 to cd2408d Compare June 10, 2026 18:06

martincostello reviewed Jun 11, 2026

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Comment thread Directory.Packages.props Outdated

martincostello added 2 commits June 11, 2026 20:38

Bump Microsoft.OpenApi

8cbb8c0

Update Microsoft.OpenApi 3.7.0.

Enable runtime async

fff7fdc

Enable use of runtime async.

martincostello reviewed Jun 14, 2026

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Comment thread Directory.Build.props Outdated

Update Features to be additive

4b1900e

Do not overwrite `Features`.

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Update to .NET 11#2821

Update to .NET 11#2821
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costellobot commented Feb 12, 2026 •

edited by martincostello

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Summary 🚀

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