What's new in .NET 9 Preview 5

[JonDouglas]

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## Contribution Template - Use to your discretion

Feature Name: [Short title of the feature]

What It Does: [Brief description of the feature]

How It Helps: [Explain the benefit or problem it solves]

How to Use: [Simple instructions on using the feature]

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Index of .NET 9 releases

• What's new in .NET 9 Preview 1 #9089
• What's new in .NET 9 Preview 2 #9090
• What's new in .NET 9 Preview 3 #9091
• What's new in .NET 9 Preview 4 #9092
• What's new in .NET 9 Preview 5 #9093
• What's new in .NET 9 Preview 6 #9094
• What's new in .NET 9 Preview 7 #9095
• What's new in .NET 9 RC 1 #9096
• What's new in .NET 9 RC 2 #9097