August 11, 2018. Difficulty rose by +7.39% to 6.39T from 5.95T.
Change
+7.39%
New difficulty
6.39T
Period length
13.1 days
Network hashrate then (7-day)
46.4 EH/s
Bitcoin price then
$6,350
Hashprice then
$262/PH/day
The 2,016 blocks before it took 13.1 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 7.39%: a large adjustment. For every machine on the network that is a pay cut of the same size until the next retarget.