This blog is updated daily.
A general description is here.
There is a new directiory ‘tests/C++Standards’ which contains small packages which can be test-installed to check support for various C++ standards. This is principally for use on Windows as on a Unix-alike this partially duplicates tests done by ‘configure’ - although it can also be used to test the behaaiour of ‘R CMD INSTALL’ on unsupported standards.
