F# is a functional-first, general-purpose, strongly typed, multi-paradigm programming language that encompasses functional, imperative, and object-oriented programming methods.
F# was initially available only on Windows as a Microsoft Research project, but it is now a first-class language on several platforms.
F# is developed by the F# Software Foundation, Microsoft, and open contributors. The open-source, cross-platform compiler for F# is available from the F# Software Foundation.
The language has gone through several versions.
| Version | Date | Platforms | Runtime |
|---|---|---|---|
| F# 1.x | May 2005 | Windows | .NET 1.0 - 3.5 |
| F# 2.0 | April 2010 | Linux, macOS, Windows | .NET 2.0 - 4.0, Mono |
| F# 3.0 | August 2012 | Linux, macOS, Windows, JavaScript, GPU | .NET 2.0 - 4.5, Mono |
| F# 3.1 | October 2013 | Linux, macOS, Windows, JavaScript, GPU | .NET 2.0 - 4.5, Mono |
| F# 4.0 | July 2015 | ||
| F# 4.1 | March 2017 | Linux, macOS, Windows, JavaScript, GPU | .NET 3.5 - 4.6.2, .NET Core, Mono |
| F# 4.5 | August 2018 | Linux, macOS, Windows, JavaScript, GPU | .NET 4.5 - 4.7.2, .NET Core SDK 2.1.400 |
| F# 4.7 | September 2019 | ||
| F# 5.0 | Nov 2020 | Linux, macOS, Windows, JavaScript, GPU | .NET Core SDK 5.0.100 |
F# has numerous features, and some of them are as follows: