As you have noticed from the banner on the qt-project.org download page, downloads are moving to qt.io. This is part of unifying Qt and defragmenting the community. The intention is to gradually move to using one Qt website for all services.
Downloads have been available on the unified Qt site for some time now, and everything has been working well there, so today we will start forwarding all traffic that is coming to qt-project.org/downloads to the qt.io/download page.
On the unified Qt download page you'll find all the downloads as before plus the commercial options on one page.
Next in the site unification is the moving of the Qt blog and documentation to the new site and making a unified login service for all the Qt online services.
The Qt blog will be moving to the qt.io domain with a new layout in the coming weeks. This change will be straightforward and isn't expected to cause any issues.
We received good feedback from you on the new look and feel of the documentation. Thank you. We made changes based on the feedback, and now the Qt 5.4.0 release documentation will be available on doc.qt.io. You can already see the release candidate documentation at doc.qt.io. The rest of the documentation will also be moving to the new address later on.
The new unified login, Qt Account, will enable you to use the same credentials for forums, wiki, bugs and all the other services. We will start moving services that need a login to qt.io as soon as the new login system is properly tested and available for use. The current plan is that in early 2015 we should have most of the developer services in the unified Qt site.
If you have feedback or questions, please leave a comment!