qtbase

Will be applied upstream

• changelog entry for 5.12.0
• Drop already applied patches
• Make qt5-flatpak-platformtheme transitional package, and new package qt5-xdgdesktopportal-platformtheme

Ubuntu specific potentially?

• compat version bumped down to 10
• build-dep on libmysqlclient-dev
• Depend on libssl1.0.0 instead of libssl1.1

can be dropped?

• qmake breaks/replaces version change
• Use bundled harfbuzz instead of system version

Neon specific

• Add 0001-let-qlibraryinfo-fall-back-to-locate-qt.conf-via-XDG.patch
• arm64 build for GLES

qtxmlpatterns

Will be applied upstream

• changelog entry for 5.12.0