Io is small prototype-based programming language. It is a pure object language, and it features an incremental garbage collector, exceptions, light weight threads, and embeddability.
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A new isLaunchScript predicate was added to test if the current file is the launch file. A new Cairo addon was provided along with a newly redesigned Regex addon and new NetworkAdapter addon. REPL now uses the new ReadLine addon for CLI history.
There is a new MySQL add-on and a new PostgreSQL add-on. The clone method of Range now copies its state. Cloning Locals now now works on slots on the Local object. There is a fix for interpolate to make it non-recursive.