A one-time amnesty from hay fever.
The Animal Crossing UK Twitter account has given good news for those who stepped away from New Leaf for a long time, but want to get in with the Amiibo update.
According to the posting, done in character as Isabelle, booting the game after the update will remove all of the weeds from the village.
Been away from your town for a while? When the free update arrives this autumn, I'll take care of all the weeds! pic.twitter.com/Ij0hg25E4q— Animal Crossing UK (@AC_Isabelle) September 12, 2016
It appears to be a one-time relief for those who wish to check out the new features.