Microsoft.SemanticKernel pckage source code does not match repo

[vgpro54321]

Hello All,

I am struggling to understand why the source code Visual Studio shows for package does not match repo main branch.

I installed Microsoft.SemanticKernel meta package 1.0.0-beta8 for .NET 6 project.

If I look at source code for KernelBuilder class using "Got to Implementation" in VS, I see code like this:

public sealed class KernelBuilder
{
    private Func<ISemanticTextMemory> _memoryFactory = () => NullMemory.Instance;
    private ILoggerFactory _loggerFactory = NullLoggerFactory.Instance;
    private Func<IMemoryStore>? _memoryStorageFactory = null;
    private IDelegatingHandlerFactory _httpHandlerFactory = NullHttpHandlerFactory.Instance;
    [Obsolete("Use IPromptTemplateFactory instead. This will be removed in a future release.")]
    [EditorBrowsable(EditorBrowsableState.Never)]
    private IPromptTemplateEngine? _promptTemplateEngine;
    private readonly AIServiceCollection _aiServices = new();
    private IAIServiceSelector? _serviceSelector;

    /// <summary>
    /// Create a new kernel instance
    /// </summary>
    /// <returns>New kernel instance</returns>
    public static IKernel Create()
    {
        var builder = new KernelBuilder();
        return builder.Build();
    }

Build() method is declared returning IKernel:

public IKernel Build()

However, in repository main branch source code looks different and so does Build() method, returning Kernel class instead of IKernel.

Repository / main branch:

public sealed class KernelBuilder
{
    /// <summary>The collection of services to be available through the <see cref="Kernel"/>.</summary>
    private ServiceCollection? _services;
    /// <summary>Multicast delegate of configuration callbacks for creating plugins.</summary>
    private Action<IServiceProvider, ICollection<IKernelPlugin>>? _pluginCallbacks;
    /// <summary>The initial culture to be stored in the <see cref="Kernel"/>.</summary>
    private CultureInfo? _culture;

    /// <summary>Initializes a new instance of the <see cref="KernelBuilder"/>.</summary>
    public KernelBuilder() { }

Build method:
public Kernel Build()

As a matter of fact, I am unable to find IKernel interface declaration in repo at all.

Why is there a difference? Am I using a wrong package or looking at wrong branch?

[vgpro54321]

It looks like VS was pulling some obsolete nugets from cache. I cleared nuget cache and reinstalled to get the current version.