DCPR is needed for BC applications from EEA citizens. The Home Office had said they made a mistake on the new forms and have withdrawn them.
For those that apply for BC for their chilld with an old PR, be aware that UKVI are now checking the parents PR claim (even if they now have BC) before they grant any BCs for their child. PR seems to have been handed out like smarties before, without checking to see that they really did achieve PR under the Directive of being a qualified person at all times.