Whether you need a visa depends on your nationality and the purpose of your visit; the EES itself does not change visa requirements. Travellers from visa-exempt countries, like the US, UK, Canada, and Australia, will not need a visa for short stays (up to 90 days within a 180-day period), while travellers from non-exempt countries will continue to require a Schengen visa.
Note that a further change is set to be brought in at some point in 2025, which will require travellers from visa-exempt countries to follow an online registration prior to travel. ETIAS – the EU Travel Information &…