June 19, 2018. Difficulty rose by +2.77% to 5.08T from 4.94T.
Change
+2.77%
New difficulty
5.08T
Period length
13.6 days
Network hashrate then (7-day)
37.9 EH/s
Bitcoin price then
$6,625
Hashprice then
$324/PH/day
The 2,016 blocks before it took 13.6 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 2.77%: an ordinary adjustment. For every machine on the network that is a pay cut of the same size until the next retarget.