Update F# Tooling, Language and F# Core version numbers

[KevinRansom]

The next major release of F# will be Dev 17.0

• Language F# Language Version will be 6.0
• FSharp.Core.dll version will be 6.0.0.0
• FSharp.Core nuget package will be 6.0.0

Language version 6.0 will be added and will have enabled:

• LanguageFeature.OverloadsForCustomOperations, languageVersion60
• LanguageFeature.ExpandedMeasurables, languageVersion60
• LanguageFeature.ResumableStateMachines, languageVersion60
• LanguageFeature.StructActivePattern, languageVersion60
• LanguageFeature.PrintfBinaryFormat, languageVersion60
• LanguageFeature.UseBindingValueDiscard, languageVersion60
• LanguageFeature.NonVariablePatternsToRightOfAsPatterns, languageVersion60
• LanguageFeature.AttributesToRightOfModuleKeyword, languageVersion60

And also this active PR

• Additional type directed conversions

And possibly these active PRs

• type resolved arr[idx]
• RFC FS-1108 - Undentation frenzy

[Happypig375]

Ayy, will we have F# 7 for .NET 7 too?

[En3Tho]

OverloadsForCustomOperations
ExpandedMeasurables
ResumableStateMachines
StructActivePattern
PrintfBinaryFormat
UseBindingValueDiscard
NonVariablePatternsToRightOfAsPatterns
AttributesToRightOfModuleKeyword

[dsyme]

Ayy, will we have F# 7 for .NET 7 too?

🤣 🤣 🤣 🤣 One thing at a time :)

[DalekBaldwin]

Since FSharp.Core will now target both netstandard2.0 and netstandard2.1, it may help to have some guidance on new best practices for linking and building projects against it.

[dsyme]

Since FSharp.Core will now target both netstandard2.0 and netstandard2.1, it may help to have some guidance on new best practices for linking and building projects against it.

All this is handled automatically. If you are making a netstandard2.0 library, or a net472 library, then netstandard2.0 facade is used. If making a netstandard2.1 or net5.0 thing then netstandard2.1 is used.

I'm not sure any specific guidance is needed, just as we don't give any specific guidance for other .NET components

[dsyme]

All done 👍