|ECMA-262 9th Edition||Working draft, repository||2018||ECMAScript 2018 Language Specification|
|ECMA-402 5th Edition||Working draft, repository||2018||ECMAScript 2018 Internationalization API Specification|
|ECMA-262||June 1997||ECMAScript: A general purpose, cross-platform programming language. This was the first version of the ECMAScript standard.|
|ECMA-262 2nd Edition||August 1998||ECMAScript Language Specification. This is the second revision of the ECMAScript standard; also ISO standard 16262.|
See also the errata
|ECMA-262 5th Edition||December 2009||ECMAScript Language Specification. This is the fifth revision of the ECMAScript standard.
See also the ES5 errata and ECMAScript 5 support in Mozilla
|ECMA-357||June 2004||ECMAScript for XML (E4X).
See also the E4X errata.
|ECMA-262 5.1 Edition||PDF, HTML||June 2011||This version is fully aligned with 3rd edition of the international standard ISO/IEC 16262:2011.
It includes ES5 errata fixes, no new features.
|ECMA-402 1st Edition||PDF, HTML||December 2012||ECMAScript Internationalization API Specification|
|ECMA-262 6th Edition||PDF, HTML||June 2015||ECMAScript 2015 Language Specification|
|ECMA-402 2nd Edition||June 2015||ECMAScript 2015 Internationalization API Specification|
|ECMA-262 7th Edition||HTML||June 2016||ECMAScript 2016 Language Specification|
|ECMA-402 3rd Edition||HTML||June 2016||ECMAScript 2016 Internationalization API Specification|
|ECMA-262 8th Edition||HTML||June 2017||ECMAScript 2017 Language Specification|
|ECMA-402 4rd Edition||HTML||June 2017||ECMAScript 2017 Internationalization API Specification|
See Wikipedia ECMAScript entry for more information on ECMAScript history.
You can participate in or just track the work on the next revisions of the ECMAScript Language Specification, code-named "Harmony", and the ECMAScript Internationalization API Specification via public wiki and the es-discuss mailing list linked from ecmascript.org.
- Tamarin - the ActionScript virtual machine (used in the Adobe® Flash® Player);
- Other implementations (Wikipedia).
- Dmitry Soshnikov's analysis of ECMA-262 Edition 3 and 5