A new major version of the Qt has been released.

Qt 5.4 released

From the news article:

I am happy to announce that Qt 5.4 has been released today and is available for download from qt.io. Together with Qt 5.4, we have also released Qt Creator 3.3 and an update to Qt for device creation on embedded Linux and embedded Android.

But let’s start with Qt 5.4. One of the main focus areas of this Qt release has been around Web technologies and we have a lot of cool new things to offer there...