It kept referring to added Add-Ons to the default Blockland, so I think v11 is upon us.
EDIT: Looking further at the update list, what it was actually saying was it was counting the Add-Ons that would come with v11 (Cleanup spam etc) would be added to a 'default array' which I'm guessing means Add-Ons that can't be disabled or are included with Blockland.
MOREDIT: I bet v11 comes out Feb 17th.