August 18, 2019. Difficulty rose by +1.98% to 10.18T from 9.99T.
Change
+1.98%
New difficulty
10.18T
Period length
13.7 days
Network hashrate then (7-day)
72.8 EH/s
Bitcoin price then
$10,242
Hashprice then
$247/PH/day
The 2,016 blocks before it took 13.7 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 1.98%: an ordinary adjustment. For every machine on the network that is a pay cut of the same size until the next retarget.