You can read the press release from ECMA International at the following Web page: Ecma International approves major revision of ECMAScript
The Ecma General Assembly held on December 3, 2009 in Mountain View, CA, USA has approved the new Edition of the ECMAScript language standard. After interoperability and web compatibility testing the final draft standard was submitted on October 4, 2009 to the Ecma General Assembly for ratification as an Ecma Standard. Now after successful approval the 5th Edition of ECMAScript has been forwarded to ISO/IEC JTC 1 for fast-track approval.
The official Web page from ECMA International can be read at [Standard ECMA-262 where you can download the PDF of the [URL="http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf"]Standard ECMA-262 5th Edition, ECMAScript Language Specification which was published on [URL="http://www.ecma-international.org/news/index.html"]3rd December, 2009](http://www.ecma-international.org/publications/standards/Ecma-262.htm).
P.S If this really is for real then wow, I get to bring the great news of this update! Hehe