A preview of the upgrade, Ruby 2.4.0, was released this week. The general release of is due on Christmas Day, December 25, with a beta release due several months prior to general availability, Ruby founder Yukihiro Matsumoto said.
Preview 1 improves performance by optimizing [x, y].max and .min methods to not create a temporary array under some conditions. The language also gets a performance boost by adding a Regexp#match method, which executes a regexp match without creating a back reference object, leading to reduced object allocation. Regexp holds a regular expression and is used to match patterns against strings. Version 2.4.0 also speeds up instance variable access.
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