Update .NET SDK

[DaleMckeown]

Tool name

.NET SDK

Tool license

https://dotnet.microsoft.com/en-us/download/dotnet/9.0

Add or update?

• Add
• Update

Desired version

.NET9

Approximate size

No response

Brief description of tool

.NET SDK needs updating to include the recently released .NET 9 framework.

URL for tool's homepage

https://dotnet.microsoft.com/en-us/download/dotnet/9.0

Provide a basic test case to validate the tool's functionality.

No response

Platforms where you need the tool

• Azure DevOps
• GitHub Actions

Runner images where you need the tool

• Ubuntu 20.04
• Ubuntu 22.04
• Ubuntu 24.04
• macOS 12
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022

Can this tool be installed during the build?

No response

Tool installation time in runtime

No response

Are you willing to submit a PR?

No response

[vidyasagarnimmagaddi]

Hi @DaleMckeown , .Net version 9 will be added in next image roll out. thanks

[thomasbach-dk]

Could this be updated to include macos runners aswell?

[DaleMckeown]

@thomasbach-dk My understanding is they have some specific rules for macOS images, IIRC only 1 version of .NET is allowed on them. It will likely be a decision for MSFT to make themselves when they want to swap 8 out for 9, so I don't want it to hold up the rest of the images from being deployed with .NET9.

Feel free to submit a separate PR targeting macOS specifically.