September 13, 2019. Difficulty rose by +10.38% to 11.89T from 10.77T.
Change
+10.38%
New difficulty
11.89T
Period length
12.7 days
Network hashrate then (7-day)
88.3 EH/s
Bitcoin price then
$10,197
Hashprice then
$217/PH/day
The 2,016 blocks before it took 12.7 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 10.38%: 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.