Where to find older versions of QT (e.g. QT 4.6)?

I'v scoured th开发者_如何学Pythone internet but to no avail. Can anyone help me find the older releases of QT ?

UPDATE 20150622:

The webpage (http://www.qt-project.org) page has moved to http://www.qt.io. The download page is now at http://download.qt.io/archive/, and the archive page is now at http://download.qt.io/archive/.

UPDATE 20131128:

In March 2011, Nokia sold the commercial licensing part of Qt to Digia creating Qt Commercial. In the process, the downloads for the open-source packages moved to http://download.qt-project.org/, with the archives now being at http://download.qt-project.org/archive/. Commercial releases are distributed via the Digia Customer Portal and a separate distribution system.

The old ftp://ftp.qt.nokia.com/ does not contain relevant content anymore.

UPDATE END

for the sdk, the archives are at

ftp://ftp.qt.nokia.com/pub/qtsdk/

*-2010.04* seems to be Qt 4.6.3, *-2010.05* Qt 4.7. for details of the corresponding Qt versions, google the full file name, eg. http://www.google.com/search?q=%22qt-sdk-win-opensource-2010.05.exe%22, or order the ftp directoy listing by "last modified" and correlate with Qt version release dates.

if you only need the libraries, go to

ftp://ftp.qt.nokia.com/pub/qt/source/

(which seems to be exactly the same as ftp://ftp.trolltech.com/qt/source/)

Since Qt is in part maintained by the Qt Project, you can find all sources of all releases in their archive:

http://download.qt.io/archive/qt/

For Qt 4.6, this means:

http://download.qt.io/archive/qt/4.6/

The current releases reside under another directory:

http://download.qt.io/official_releases/qt/

The links provided by ax are dead now, and I found some SDK (with qt libraries 4.7, 4.6, 4.5) at

ftp://ftp.informatik.hu-berlin.de/pub/Linux/Qt/QT/qtsdk/

Is this what you're looking for? ftp://ftp.trolltech.com/qt/source/

As September 2014: http://download.qt-project.org/official_releases/

It will change now that Qt has moved to http://qt.io

This (official) page links to specific releases—which could be found through the URLs in some of the other answers—but I think the format of this page is a bit easier to navigate:

https://wiki.qt.io/Qt_Versions

(The download links all point to files hosted at http://download.qt.io/archive/ or ftp://ftp.informatik.hu-berlin.de/pub/Linux/Qt/QT/qtsdk/.)

On the download section of their site, then other releases.

http://download.qt.io/archive/qt/ Goes all the way back to version 1.