Maintenance: Deprecate .NET 6

[hjgraca]

Summary

.NET 6 has been out of support since October 2024 and will be deprecated as a Lambda managed runtime on October 2025

Why is this needed?

This allows us to keep moving forward with new language features and remove some of the checks we have to check if it is .NET 8 or greater.

Work:

• Remove net6.0 from TargetFrameworks in Directory.build.props files in src/ and tests/ <TargetFrameworks>net6.0;net8.0</TargetFrameworks>
• Remove all instances of code specific to net6 (#if NET6_0)
• Remove #if NET8_0_OR_GREATER and delete the else (code specific to net60)
  example:

#if NET8_0_OR_GREATER
        // starting .NET 8 no option to change hash algorithm
        using var hashAlgorithm = MD5.Create();
#else <--- delete
        using var hashAlgorithm = HashAlgorithm.Create(_idempotencyOptions.HashFunction);
#endif

Which area does this relate to?

No response

Solution

No response

Acknowledgment

• This request meets Powertools for AWS Lambda (.NET) Tenets

[hjgraca]

Work:

• Remove net6.0 from TargetFrameworks in Directory.build.props files in src/ and tests/ <TargetFrameworks>net6.0;net8.0</TargetFrameworks>
• Remove all instances of code specific to net6 (#if NET6_0)
• Remove #if NET8_0_OR_GREATER and delete the else (code specific to net60)
  example:

#if NET8_0_OR_GREATER
        // starting .NET 8 no option to change hash algorithm
        using var hashAlgorithm = MD5.Create();
#else <--- delete
        using var hashAlgorithm = HashAlgorithm.Create(_idempotencyOptions.HashFunction);
#endif

[dcabib]

Can you assign this one to me?