From the article: Update at 11:00 AM EST: Digia has contacted TNW [TheNextWeb] to say that “some last minute technical issues” have delayed the launch until December 12. Downloads are now expected to go live at 10:00 AM CET (4:00 AM EST) [9:00 GMT], or about 22 hours later than previously planned.

Seems it's rc1[1]. Feature list is present here[2].

[1]http://download.qt-project.org/development_releases/qt/5.2/ [2]http://qt-project.org/wiki/New-Features-in-Qt-5.2

Here you go: http://download.qt-project.org/official_releases/qt/5.2/