August 5, 2019. Difficulty rose by +10.78% to 9.99T from 9.01T.
Change
+10.78%
New difficulty
9.99T
Period length
12.6 days
Network hashrate then (7-day)
72.4 EH/s
Bitcoin price then
$10,998
Hashprice then
$266/PH/day
The 2,016 blocks before it took 12.6 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 10.78%: one of the largest adjustments on record. For every machine on the network that is a pay cut of the same size until the next retarget.