This blog is updated daily.
A general description is here.
Some ‘NOTE’s for use of non-API entry points have been upgraded to ‘WARNING’s in preparation for removing declarations and, where possible, hiding these entry points.
Some non-API entry points have been added to those reported by ‘R CMD check’: ‘COMPLEX0’, ‘ddfind’, ‘DDVAL’, ‘ENSURE_NAMEDMAX’, ‘ENVFLAGS’, ‘FRAME’, ‘HASHTAB’, ‘INTERNAL’, ‘IS_ASCII’, ‘IS_UTF8’, ‘LEVELS’, ‘NAMED’, ‘PRSEEN’, ‘RDEBUG’, ‘REAL0’, ‘Rf_findVarInFrame3’, ‘SET_BODY’, ‘SET_CLOENV’, ‘SET_FORMALS’, ‘SET_PRSEEN’, ‘SET_RDEBUG’, ‘STRING_PTR’, ‘SYMVALUE’, and ‘VECTOR_PTR’. Any declarations for these in public header files will be removed in the near future, and they will be hidden where possible.