Unlike previous versions of Windows (including Windows 7), Windows 10 contains a bunch of quality improvements related to scaling user interface of outdated applications incompatible with HiDPI (High-DPI) screen modes often used together with 4K monitors:
- scaling old applications with no blur at integer zooms;
- overriding DPI mode of an application in an arbitrary direction;
- quality scaling of text rendered via GDI;
- developers: ability to combine different DPI modes in the same application.