[release/10.0.3xx] Source code updates from dotnet/fsharp

[dotnet-maestro]

Note

This is a codeflow update. It may contain both source code changes from
the source repo
as well as dependency updates. Learn more here.

This pull request brings the following source code changes

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

• Subscription: a3c743a8-612f-4466-b6ab-4d4be782a07b
• Build: 20260120.5 (298063)
• Date Produced: January 20, 2026 7:17:00 PM UTC
• Commit: d795504b494bb6c390d990f8204decdadd881c70
• Commit Diff: 966a2c0...d795504
• Branch: main

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/dotnet/fsharp:d795504b494bb6c390d990f8204decdadd881c70..https://github.com/dotnet/dotnet:darc-release/10.0.3xx-d7f923a3-e3df-477e-b987-c49626379907

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• [main] Source code updates from dotnet/dotnet fsharp#19216

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• [main] Update dependencies from dotnet/arcade fsharp#19225

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• Bugfix :: Object expressions in struct types generating invalid IL with byref fields fsharp#19070

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• Add --disableLanguageFeature CLI switch and MSBuild property to selectively disable language features fsharp#19167

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.