Boo (programming language)

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Boo

Paradigm	Object oriented
Designed by	Rodrigo B. De Oliveira
Developer	Mason Wheeler
First appeared	2003; 21 years ago (2003)
Stable release	0.9.7 / 25 March 2013; 11 years ago (2013-03-25)
Typing discipline	static, strong, inferred, duck
Implementation language	C#
Platform	Common Language Infrastructure (.NET Framework & Mono)/
License	BSD 3-Clause[1]
Website	github.com/boo-lang
Influenced by
C#, Python
Influenced
Genie, Vala

Boo is an object-oriented, statically typed, general-purpose programming language that seeks to make use of the Common Language Infrastructure's support for Unicode, internationalization, and web applications, while using a Python-inspired syntax^[2] and a special focus on language and compiler extensibility. Some features of note include type inference, generators, multimethods, optional duck typing, macros, true closures, currying, and first-class functions.

Boo was one of the three scripting languages for the Unity game engine (Unity Technologies employed De Oliveira, its designer), until official support was dropped in 2014 due to the small userbase.^[3] The Boo Compiler was removed from the engine in 2017.^[4] Boo has since been abandoned by De Oliveira, with development being taken over by Mason Wheeler.^[5]

Boo is free software released under the BSD 3-Clause license. It is compatible with the Microsoft .NET and Mono frameworks.