This blog is updated daily.
A general description is here.
‘configure’ is now able to find an external ‘libintl’ on macOS (the code from an older GNU gettext distribution failed to try linking with the macOS Core Foundation framework).
Building with the bundled (and old) version of ‘libintl’ is deprecated and now gives a ‘configure warning’. This should be selected only if neither the OS's ‘libc’ nor an external ‘libintl’ library provide suitable functions.
Instead install ‘libintl’ from a recent version of GNU gettext or use ‘configure’ option ‘--disable-nls’.
The functions in header ‘R_ext/Callbacks.h’ (which is *not* part of the API) have been converted to use the ‘bool’ type.
‘vignette("reshape")’ is now also available on Windows.