Update dotnet

[tejasd1990]

Tool information

• Tool name: dotnet
• Tool license:
• Add or update? update
• Desired version: 5
• Approximate size:
• If this is an add request:
  • Brief description of tool:
  • URL for tool's homepage:
  • Provide a basic test case to validate the tool's functionality:

Area for Triage:

Question, Bug, or Feature?:
Feature

Virtual environments affected

• macOS 10.15
• Ubuntu 16.04 LTS
• Ubuntu 18.04 LTS
• Ubuntu 20.04 LTS
• Windows Server 2016 R2
• Windows Server 2019

Can this tool be installed during the build?

Tool installation time in runtime

Are you willing to submit a PR?
yes #1856

Azure Pipelines hosted agents will soon be updated to contain .Net Core 5.x SDK/Runtime along with older lts versions. Unless you have locked down a SDK version for your project(s), 5.x SDK might be picked up which might have breaking behavior as compared to previous versions.

You can learn more about the breaking changes here:
https://docs.microsoft.com/en-us/dotnet/core/tools/
https://docs.microsoft.com/en-us/dotnet/core/compatibility/

To learn about more such changes and troubleshoot, refer here:
https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/build/dotnet-core-cli?view=azure-devops#troubleshooting

[miketimofeev]

Hi, @tejasd1990!
Thanks for your contribution. Could you please change your PR to install a stable version of .Net 5 only? We'll merge it as soon as a stable version is released.

[tejasd1990]

Hi @miketimofeev , I have added this issue for adding an announcement. My team owns the dotnetcore ecosystem, and we have made this change in the pr for the dotnet 5 release day 0 readiness.

[bishal-pdMSFT]

Azure Pipelines hosted agents have been updated

They have not yet been updated. We will be updating them soon.

This is a hands-up to make folks aware of this change. Please update the message to call that out.

[tejasd1990]

hi @miketimofeev , we want to make this an announcement as I said earlier. Whats the way forward for that?

[maxim-lobanov]

@tejasd1990 , Alyona has create announcement in repository: #1891
It will also be included to image documentation for all images next week

[bishal-pdMSFT]

@maxim-lobanov could you please update this issue after announcement is public this week? Would like to spread that information.

[maxim-lobanov]

Hello, I am closing this issue in favor of #1891.
We will deploy new images with .NET 5 in two weeks. We will keep announcement post updated.