This blog is updated daily.
A general description is here.
Fixes for bugs in handling empty arguments and argument matching by name in ‘log()’.
‘callGeneric()’ could fail if the generic had ‘...’ as a formal argument. (PR#15937).
‘edit()’ (and hence ‘fix()’) failed if an object had a non-character attribute named ‘"source"’ (an attribute that had been used in R prior to version 2.15.0).