My concern was lack of a suspend (or hibernate) button in the logout dialog after recent dist-upgrades.
Testing in a VM, I can confirm that installing xfce4-session 4.10.1-7 restores the missing suspend and hibernate buttons, and that downgrading to 4.10.1-6 causes the suspend and hibernate buttons to go missing from the logout dialog again. Short form: upgrading to 4.10.1-7 fixes my frustrating logout dialog button problem after logging out and back in again; thank you maintainers! -- Andrew Chadwick