C# 13 novidades

/ Before C# 13
void Method1(params object[] args) { }

// C# 13
void Method2(params IList<object> args)
{ }

// C# 13
void Method3(params ICollection<object> args)
{ }

// C# 13
void Method4(params ReadOnlySpan<object> args)
{ }

public class OldLock
{
    private readonly object _lockObj = new();
    private static int sharedResource = 0;

    public void IncrementResource()
    {
        lock (_lockObj)
        {
            sharedResource++;
        }
    }
}
public class NewLock
{
    private readonly Lock _lockObj = new();
    private static int sharedResource = 0;

    public void IncrementResource()
    {
        using (_lockObj.EnterScope())
        {
            sharedResource++;
        }
    }
}

//OLD
string text = "\u001b[32mThis is green text\u001b[0m";
Console.WriteLine(text);

//NEW
string text = "\e[32mThis is green text\e[0m";
Console.WriteLine(text);

public partial class Foo
{
    [GeneratedRegex("abc|def")]
    private static partial Regex AbcRegex { get; }

    public bool IsMatchAbc(string text)
        => AbcRegex.IsMatch(text);
}