What are the support and deprecation plan for EDK cores that contain OPB and PLBv34 interfaces?
Enhancements of the older cores has stopped with EDK 9.2i. Only critical bugs will be addressed in the legacy OPB and PLBv34 cores and infrastructure.
Deprecation of these cores are currently planned as early as EDK 11.1i, and full removal from tools is currently planned for EDK 12.1i.
Details for migrating an EDK system using the new cores and infrastructure is provided in mg_ug.ucf, "PLB v3.4 and OPB to PLB v4.6 System and Core Migration User Guide". The guide is distributed with the EDK 9.2i install.