What is DDC.dpp?

[anonymous_user_f89beac21 (anonymous_user_f89beac2)]

whenever i start a new project, it is the longest loading file. i was just wondering what it is.

[anonymous_user_fbe68f781 (anonymous_user_fbe68f78)]

The following documentation explains it very well.

https://docs.unrealengine.com/latest/INT/Engine/Basics/DerivedDataCache/index.html

Cheers