The GNU compiler suite has been update to version 9.0.1. See the upstream documentation for user visible changes. Packages in Fedora have been rebuilt with the new version of the compiler.
Boost has been upgraded to version 1.69. See the Boost section for details.
Fedora 30 provides the GNU C Library -
glibc - version 2.29. Notable changes include:
getcpuwrapper function has been added, which returns the currently used CPU and NUMA node.
reallocarrayfunction is now declared under
_DEFAULT_SOURCE, not just for
_GNU_SOURCE, to match BSD environments.
systemdo not run
strftime’s default formatting of a locale’s alternative year (%Ey`) has been changed to zero-pad the year to a minimum of two digits, like
As a GNU extension, the
-flags can now be applied to
%EYto control how the year number is formatted; they have the same effect that they would on
glibc.tunetunable namespace has been renamed to
glibc.cpuand the tunable
glibc.tune.cpuhas been renamed to
An archaic GNU extension to
scanf, under which
%a[…]meant to scan a string and allocate space for it with
malloc, is now restricted to programs compiled in C89 or C++98 mode with