The latest version of Qt Creator can be downloaded from Softpedia
Qt Creator, a cross-platform IDE (integrated development environment) tailored to the needs of Qt developers and part of the Qt Project, is now at version 3.0 RC1.Qt Creator 3.0 RC1 has been released along with the Qt 5.1 Release candidate and the developers are preparing for the final release.
“We have been doing a lot of bug fixing since the beta release, and think that Qt Creator 3.0 is now relatively close to what we would like to release as the final. So we would really like you to have a try and report remaining issues that you find,” reads the official announcement.
A complete list of changes can be found in the official announcement. Download Qt Creator 3.0 RC1 right now from Softpedia.
Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.