Its an new automated IT system for registering non-EU nationals. This will be required med 2025 Any updated info would be helpful
Do you mean ETIAS, or EES or both, Jo?
https://travel-europe.europa.eu/index_en
It's sounds like they're referring to EES. Latest news reports indicate it's not likely to be launched until the second week of November. EES is a necessary first step before they can introduce ETIAS.
It's basically just registering your biometrics at entry to the EU. Nothing required beforehand, but concerns there could be teething problems/delays when first launched: