The harmony namespace is intended to contain approved proposals for the ES-Harmony language.
The following requirements, goals, and means help to inform and guide development of proposed extensions and improvements to ES5 for ES-Harmony.
Straw-man proposals live in strawman until approved by TC39, at which point they move into the harmony namespace, linked from the proposals page.
Working drafts of the specification for the next edition of ECMAScript that incorporates Harmony proposals is on the Specification Drafts page.
— Brendan Eich 2009/07/29 23:42
TC39 Process that applies for the features from ES7 forward is described here:TC39 Process
— Dmitry Lomov 2014/01/30 11:47
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