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Io is small prototype-based programming language

Io is small prototype-based programming language. The ideas in Io are mostly inspired by Smalltalk (all values are objects), Self, NewtonScript and Act1 (prototype-based differential inheritance, actors and futures for concurrency), LISP (code is a runtime inspectable / modifiable tree) and Lua (small, embeddable).

Version: 2017.09.06 License: GPL-2 GitHub
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2026-Jul-18 to 2026-Aug-17


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