Download Qt 5.9

Version 5.9 of Qt has been released, a Long Term Support release that will be supported for at least three years. Qt, pronounced cute, is an open source and cross-platform environment for developing applications and graphical user interfaces. It is used in Google Earth, KDE, Opera, Skype, VLC Media Player and VirtualBox, among others. More information about this release is here to find. These are the release notes accompanying this release:

Qt 5.9 released

I’m happy to let you all know that Qt 5.9.0 has just been released. A lot of work has been put into it, making Qt 5.9 the best Qt version we have developed so far.

With Qt 5.9, we have had a strong focus on performance and stability. We’ve fixed a large number of bugs all across Qt, and we have done a lot of work to improve our continuous integration system. This will make it a lot easier for us to create new releases (both patch level and minor releases) from 5.9 onward.

We’ve also added automated performance regression testing to our testing infrastructure, something that will allow us to continuously monitor our work on improving the performance of Qt. Please have a look at the separate blog post for more details.

The new configuration system used in Qt Lite has received many bug fixes, also here, you can find more detailed information in a separate blog post.