Surprisingly the Difficulty went down from almost 12M , down to 7.9M
Earnings are up from 1.17 SC/day per Gh , to 1.70 SC/day per Gh.
(unfortunately SC Value got crashed along with all other cryptos and is now only like 0.025 , own from 0.4 just a few days ago.
I think its all the dual miners exiting
It's a bugfix in the sia network implemented to fix block times, it's was announced quite a long time. Difficulty is still expected to drop quite a bit,