This is a fabulous update, congrats to the team and all contributors. I will do my testing on staging and try to spin a new instance with this new version.
One question: the upgrade is stable enough for witness nodes as well, or should we wait until the official hf 0.20?
Again, chapeau, guys!
LE: upvoted for visibility
RE: AppBase: The next step forward for the Steem blockchain (let the testing begin)