Upgrade from any version 4.0 or 4.1 to version 4.2 with the same feature set. If you want to upgrade to a different feature set, please send us an e-mail. We will then send you a price quote.
Qt makes software development smarter. It is a powerful plattform neutral framework that makes it easy to bring many applications to OS/2 that were written for various other plattforms. With this "Development Unit" you help us to further port Qt 5 to OS/2.