remove Language-Version-History.md (dotnet#10599)

Author: KevinRansom

Build.cmd

@@ -1,2 +1,2 @@
-@echo off
+@echo off 
 powershell -ExecutionPolicy ByPass -NoProfile -command "& """%~dp0eng\build.ps1""" -build -restore %*"

Language-Version-History.md

@@ -1818,3 +1818,112 @@ Includes commits up to `3385e58aabc91368c8e1f551650ba48705aaa285`
 [4.0.0]: https://fsharp.org
 [3.1.2]: http://blogs.msdn.com/b/fsharpteam/archive/2014/08/20/announcing-the-release-of-visual-f-tools-3-1-2.aspx
 [3.1.1]: http://blogs.msdn.com/b/fsharpteam/archive/2014/01/22/announcing-visual-f-3-1-1-and-support-for-desktop-express.aspx
+
+
+Features Added in F# Language Versions
+======================================
+
+# [F# 4.7](https://docs.microsoft.com/en-us/dotnet/fsharp/whats-new/fsharp-47)
+
+- Compiler support for `LangVersion`
+- Implicit `yield`s
+- No more required double underscore (wildcard identifier)
+- Indentation relaxations for parameters passed to constructors and static methods
+
+# [F# 4.6](https://docs.microsoft.com/en-us/dotnet/fsharp/whats-new/fsharp-46)
+
+- Anonymous records
+- `ValueOption` module functions
+
+# [F# 4.5](https://docs.microsoft.com/en-us/dotnet/fsharp/whats-new/fsharp-45)
+
+- Versioning alignment of binary, package, and language
+- Support for `Span<'T>` and related types
+- Ability to produce `byref` returns
+- The `voidptr` type
+- The `inref<'T>` and `outref<'T>` types to represent readonly and write-only `byref`s
+- `IsByRefLike` structs
+- `IsReadOnly` structs
+- Extension method support for `byref<'T>`/`inref<'T>`/`outref<'T>`
+- `match!` keyword in computation expressions
+- Relaxed upcast with `yield` in F# sequence/list/array expressions
+- Relaxed indentation with list and array expressions
+- Enumeration cases emitted as public
+
+# [F# 4.1](https://fsharp.org/specs/language-spec/4.1/FSharpSpec-4.1-latest.pdf)
+
+- Struct tuples which inter-operate with C# tuples
+- Struct annotations for Records
+- Struct annotations for Single-case Discriminated Unions
+- Underscores in numeric literals
+- Caller info argument attributes
+- Result type and some basic Result functions
+- Mutually referential types and modules within the same file
+- Implicit `Module` syntax on modules with shared name as type
+- Byref returns, supporting consuming C# `ref`-returning methods
+- Error message improvements
+- Support for `fixed`
+
+# [F# 4.0](https://fsharp.org/specs/language-spec/4.0/FSharpSpec-4.0-final.pdf)
+
+- `printf` on unitized values
+- Extension property initializers
+- Non-null provided types
+- Primary constructors as functions
+- Static parameters for provided methods
+- `printf` interpolation
+- Extended `#if` grammar
+- Multiple interface instantiations
+- Optional type args
+- Params dictionaries
+
+# [F# 3.1](https://fsharp.org/specs/language-spec/3.1/FSharpSpec-3.1-final.pdf)
+
+- Named union type fields
+- Extensions to array slicing
+- Type inference enhancements
+
+# [F# 3.0](https://fsharp.org/specs/language-spec/3.0/FSharpSpec-3.0-final.pdf)
+
+- Type providers
+- LINQ query expressions
+- CLIMutable attribute
+- Triple-quoted strings
+- Auto-properties
+- Provided units-of-measure
+
+# [F# 2.0](https://fsharp.org/specs/language-spec/2.0/FSharpSpec-2.0-April-2012.pdf)
+
+- Active patterns
+- Units of measure
+- Sequence expressions
+- Asynchronous programming
+- Agent programming
+- Extension members
+- Named arguments
+- Optional arguments
+- Array slicing
+- Quotations
+- Native interoperability
+- Computation expressions
+
+# [F# 1.1](https://docs.microsoft.com/en-us/archive/blogs/dsyme/a-taste-of-whats-new-in-f-1-1)
+
+- Interactive environment
+- Object programming
+- Encapsulation Extensions
+
+# [F# 1.0](https://docs.microsoft.com/en-us/archive/blogs/dsyme/welcome-to-dons-f-blog)
+
+- Discriminated unions
+- Records
+- Tuples
+- Pattern matching
+- Type abbreviations
+- Object expressions
+- Structs
+- Signature files
+- Imperative programming
+- Modules (no functors)
+- Nested modules
+- .NET Interoperability