The Eva's Inferno event may have started on Aug. 25, but a number of changes were made to the event during yesterday's maintenance. The first change affects when event periods begin on NA and EU servers. The team has also "extended the period for which you can collect the rewards on day 10 and 14 to 24 hours."
Lastly, player feedback has led the team to change the rewards for days 10 and 14. Several scroll rewards from chests for those days were removed and one new reward has been introduced for the event. You can find the full list of changes in the announcement after the jump.