June 17, 2017. Difficulty rose by +4.85% to 711.70B from 678.76B.
Change
+4.85%
New difficulty
711.70B
Period length
13.4 days
Network hashrate then (7-day)
4.9 EH/s
Bitcoin price then
$2,649
Hashprice then
$1,055/PH/day
The 2,016 blocks before it took 13.4 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 4.85%: an ordinary adjustment. For every machine on the network that is a pay cut of the same size until the next retarget.