Misc updates

[lukebakken]

• net461 -> net462
• netcoreapp3.1 -> net6.0
• NuGet package updates

[bording]

@lukebakken I left some comments, but just noticed that this is on the 6.x branch. Changing the TFM from net461 to net462 is a breaking change, so you probably don't want to do that on this branch.

The other TFM changes are all for test/internal projects, so those would be fine to make here.

[lukebakken]

Changing the TFM from net461 to net462 is a breaking change, so you probably don't want to do that on this branch

The problem is that net461 is no longer supported - https://learn.microsoft.com/en-us/lifecycle/products/microsoft-net-framework

So this really requires version 7.0 of this library? Even with netstandard2.0 packages being available?

[bording]

The problem is that net461 is no longer supported - https://learn.microsoft.com/en-us/lifecycle/products/microsoft-net-framework

So this really requires version 7.0 of this library? Even with netstandard2.0 packages being available?

It is out of support, but that doesn't change that it would be a binary breaking change for anyone still running net461. If they recompiled their project, it should pick up the netstandard2.0 assembly of the library instead. If there aren't any API differences (and IIRC there isn't) then that shouldn't be a compilation breaking change.

Personally, I would just leave this on net461, and instead focus on getting 7.0 out since that clearly indicates breaking changes are happening.

[lukebakken]

@bording thanks as always I appreciate your input!