KDE Applications/KCalCore → Frameworks/KCalendarCore, Applications/KContacts → Frameworks/KContacts
Here is a blog post by Volker Krause for additional reading.
Original text below the line:
Upstream release some new frameworks: kcontacts (KDE Apps to KDE Frameworks, need to add epoch), kcalcore->kcalendarcore (new name)
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information