May 4, 2019. Difficulty rose by +5.50% to 6.70T from 6.35T.
Change
+5.50%
New difficulty
6.70T
Period length
13.3 days
Network hashrate then (7-day)
50.0 EH/s
Bitcoin price then
$5,464
Hashprice then
$204/PH/day
The 2,016 blocks before it took 13.3 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 5.50%: a large adjustment. For every machine on the network that is a pay cut of the same size until the next retarget.