Upgrade to .NET Core 3.1

[tintoy]

3.1 is the LTS release and should be good until December 2022.

See official support policy:

https://dotnet.microsoft.com/platform/support/policy/dotnet-core

[amshtemp]

MS is abandoning the old mantra of "let's do little upgrade" and more pushing towards more progressive and rapid updates. IMHO I think msbuild-project-tools-server should follow suit and upgrade to 5.0 too.

Edit: You can also install 3.0 SDK and 5.0 runtime

[tintoy]

Yeah as long as the 5.0 runtime can be installed without affecting people stuck on 3.1 that could be ok but I’ll need to do some research to see how that affects system requirements etc.

[tintoy]

For now, I'm going to target netcoreapp3.1 rather than net5 since the 3.1 runtime is a much smaller download than the 3.1 SDK.

If we hit any blockers, I'll revisit this but for now it should do a good enough job of spreading the pain out across all of our users 😉

[tintoy]

Ok - will publish the VSIX package after I've had more time to do testing. If anyone else needs it sooner, here it is:

msbuild-project-tools-0.3.11.zip

[tintoy]

(that was pretty painful BTW, I may still consider upgrading to 5.0 if only because there were so many package version conflicts going from 3.0 to 3.1)

[aneeskodappana]

@tintoy any updates on 5.0.* support

[tintoy]

Hi - not planning to move over yet; want to see how the current version performs for a while before making another version jump for the runtime :)

[tintoy]

(but longer term I hope we can look at moving over sometime in February or March)