The GLib 2.37.4 library has been officially made available for download and testing a few days ago, as part of the recently released GNOME 3.9.4 desktop environment.
GLib 2.37.4 fixes a g_source_add_child_source() segfault, fixes various issues with the documentation, repairs inconsistency of G_STRFUNC, and adds missing G_BEGIN/END_DECLS function in the gsettingsschema.h file.
Moreover, new private macros were made to interact better with versioning macros, GDBusConnection has been tweaked to be more responsive with async GetAll, and the g_spawn_async() function keeps child_pid_report_pipe open in child process.
The GLib 2.37.4 also updates the Catalan translation. For more details about this unstable release of the Glib2 library, please read the official raw changelog.
Download GLib 2.37.4 right now from Softpedia. Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.