Configurations

A configuration is a possible setup of compiler and linker options used when building a target. Configurations is the name used for it in Visual Studio.

Debug

The version used by programmers trying to find bugs. Debug info on, no profiling, logs everything and slow as a turn based game.

Developer

The normal version used for development. Debug info on, profiling on and logs the important things that does not slow down things.

Release

The bleeding edge release version. Used by QA in development. Everything for speed and minimal size is on. In windows it is nice to have debugging also and store away the pdb's.