Apart from the dom0 update, there is a something nasty in quebes-os debian jessie repository (debian-8, whonix-ws and gw):
W: Failed to fetch http://deb.qubes-os.org/r3.1/vm/dists/jessie/main/binary-amd64/Packages Hash Sum mismatch Can anyone confirm the issue, or is it only on my computer. Regards -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/2b7a0b2b-589c-405e-a1eb-76b0e3418747%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.