openSUSE Security Update : flatpak / libostree / xdg-desktop-portal / etc (openSUSE-2021-520)

This update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk fixes the following issues : libostree : Update to version 2020.8 - Enable LTO. bsc1133120 - This update contains scalability improvements and bugfixes. - Caching-related HTTP headers are now supported on summaries and...