I have updated my witness node to v0.16.0rc3 while having a backup node in v0.15.0. I am also updating other server so Noteefi is having downtime now.
Recently, I am actively arguing that witnesses need to reduce feed price discount since under current market conditions it potentially distort the market by providing excessive incentives to converters. A related post is Here. Actually, my conversion bot keep gaining profit; 11% in a month while I am buying at fixed price of $0.98. Personally higher discounts are beneficial for me, but it is based on the sacrifice of Steem stakeholders, so that I am strongly against it unless SBD pegging is seriously broken.
I am also woring on alternative GUI part, with help of @fabien and @ekitcho (not sure it's his Steem account. I communicated in Slack).
Best,
clayop