Where can I find changelog of JavaScript?

I would like to see list of changes that were made in every version of JavaScript. I would also be interested in what is plan开发者_JS百科ned to be added in JavaScript and when a new realease is planned.

Do you know any site where this info can be found?

Thank you

1. The standard it is based around: Ecmascript specs: http://www.ecma-international.org/publications/standards/Ecma-262.htm

2. Firefox specifics: MDC javascript docs including differences in javascript versions: https://developer.mozilla.org/en/javascript

3. IE specifics: MSDN library, scripting area: http://msdn.microsoft.com/en-us/library/ff729665(v=VS.94).aspx

JavaScript is a dialect of ECMAScript, have a look at the Wikipedia page of ECMAScript for a version history. You can find the full documentation on the official ECMAScript page.