Version 4.1.0 is an update to Splatoon 2 that was released on 3 October 2018 at 02:00 UTC.

Changes:

Major content update:
New stage: Skipper Pavilion.
Four new main weapons.
One new sub weapon: the Fizzy Bomb.
One new special weapon: the Booyah Bomb.
Four new music tracks.
Balance adjustments for weapons.
Many adjustments and bug fixes.