‘F’ is for Feature 

By Martin Donnelly | 3/9/17 7:32 PM | App Dev - Bluemix | Added by Oliver Busse

In order to ship new features IBM must often extend its backend classes to provide new APIs. I recognise a lot of the APIs called out in this screenshot because they are mostly the new ones added in FP8 to give you the capability of decrypting and encrypting documents.