Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'fileName' in 'FileInfo.FileInfo(string fileName)'.

Nullability of reference types in type of parameter 'y' of 'bool LanguageEqualityComparer.Equals(ProgrammingLanguage x, ProgrammingLanguage y)' doesn't match implicitly implemented member 'bool IEqualityComparer<ProgrammingLanguage>.Equals(ProgrammingLanguage? x, ProgrammingLanguage? y)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'x' of 'bool LanguageEqualityComparer.Equals(ProgrammingLanguage x, ProgrammingLanguage y)' doesn't match implicitly implemented member 'bool IEqualityComparer<ProgrammingLanguage>.Equals(ProgrammingLanguage? x, ProgrammingLanguage? y)' (possibly because of nullability attributes).

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.

The target framework 'net6.0' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the support policy.