F# Core Library Reference

The F# Core Library (FSharp.Core.dll) contains functions that support the core language, and includes frequently used utilities such as collection classes, control constructs for asynchronous programming and event-driven programming, message passing, formatted I/O, native pointers, and language quotations.

FSharp.Core Versions

There are different versions of the F# Core library for each release of the F# language (2.0, 3.0, and 3.1) and for targeting different platforms. The following table summarizes the versions.

FSharp.Core version

F# and Visual Studio versions

Target platforms

2.3.0.0

F# 3.0, F# 3.1

Visual Studio 2012, Visual Studio 2013

.NET Framework 2.0

2.3.5.0

F# 3.0

Visual Studio 2012

Windows Store apps, .NET Framework 4, Silverlight 5

2.3.5.1

F# 3.1

Visual Studio 2013

Windows Store apps, .NET Framework 4, Silverlight 5

3.3.1.0

F# 3.1

Visual Studio 2013

Windows Store apps, .NET Framework 4.5

4.3.0.0

F# 3.0

Visual Studio 2012

Visual Studio 2013

.NET Framework 4, .NET Framework 4.5

4.3.1.0

F# 3.1

Visual Studio 2012

Visual Studio 2013

.NET Framework 4, .NET Framework 4.5

Title

Description

Microsoft.FSharp.Collections Namespace (F#)

Describes the F# collection namespace, including arrays, lists, maps, sequences and sets.

Microsoft.FSharp.Control Namespace (F#)

Describes the F# control namespace, including support for asynchronous programming, message passing, and event-driven programming.

Microsoft.FSharp.Core Namespace (F#)

Describes the F# core namespace, including core operators, attributes, and types.

Microsoft.FSharp.Core.CompilerServices Namespace (F#)

Describes internal libraries used by the F# compiler.

Microsoft.FSharp.Data Namespace (F#)

Describes the F# data namespace, which contains type providers for data access, as well as units of measure.

Microsoft.FSharp.Linq Namespace (F#)

Describes the F# Linq namespace, which includes types that support F# query expressions.

Microsoft.FSharp.NativeInterop Namespace (F#)

Describes library support for F# native interoperability.

Microsoft.FSharp.Quotations Namespace (F#)

Describes the F# quotations library.

Microsoft.FSharp.Reflection Namespace (F#)

Describes the F# reflection API, which extends .NET Framework reflection to support F# types.

System Namespace (F#)

Describes extensions to the .NET Framework System namespace that support F# when targeting the .NET Framework 2.0 runtime.

System.Collections Namespace (F#)

Describes extensions to the . NET Framework System.Collections namespace that support F# when targeting the .NET Framework 2.0 runtime.

System.Numerics Namespace (F#)

Describes extensions to the .NET System.Numerics namespace that support F# when targeting the .NET Framework 2.0 runtime.

System.Threading Namespace (F#)

Describes extensions to the .NET Framework System.Threading namespace that support F# when targeting the .NET Framework 2.0 runtime.

Tip

When you read the platform compatibility notes for each API, note that any APIs that are supported on Windows 8 are also supported on Windows 8.1.

See Also

Other Resources

F# Language Reference

Visual F#