Learning HDL Loads/26D

Summary:

Will the following business objects still be supported for HDL batch loads in 26D?

Specialization V3
, Course V3
, Legacy Learning Item
, Learning Record

Content (please ensure you mask any confidential information):

We are building HDL conversion processes for these objects with the assumption that we will be able to use them during go-live, which will be on 26D. Could someone from Oracle confirm this? We know that self-paced learning objects will need to be loaded with the REST API, but our plan is to load the other items via HDL. For planning purposes, we need a concrete answer. Thank you.