The crown jewel of KDevelop 4.0 is its C++ code "understanding engine." According to the developers, it "allows the IDE to understand your code better than you do." This cuts down on the tedious tasks required for development. KDevelop 4.0 features plenty of specific code assistance features as well.
Code Assistants
There are a handful of semi-automatic coding assistants in the IDE. For example, if you assign an item to a variable that doesn't exist, KDevelop will intelligently ask if you want to create a variable with the matching type you've assigned. If you call on a non-existent function, a similar process will take place. KDevelop will also ask if you want to adapt a declaration when you change the signature of a function-definition.
Read more: DZone