Common QIX Engine
The main difference compared to previous versions is that the underlying engine of QlikView has been replaced with the updated QIX Engine 2.0. This is the same engine that powers the other products in the Qlik portfolio (Qlik Sense Enterprise and the Qlik Analytics Platform, discussed later). Besides performance improvements over the previous version, this common engine makes it easier to share data models between QlikView and the other Qlik products, notably Qlik Sense. The shared code base of the engine also ensures that future investments that Qlik does in features, performance, security, and connectivity can be easily back ported to QlikView.
64-bit only
Where previously there were both 32-bit and 64-bit versions of the QlikView software, QlikView 12 desktop and server are only available in the 64-bit version. The 32-bit QlikView desktop version, with its memory limited to 2 GB, has become outdated. If you have a hard requirement to still use a 32-bit version of the software...