I've been reading, and watching videos, about the new security system - and just ended up confused.
The videos keep mentioning Lounge 1 and Lounge 2, and KLM check-in, without explaining their significance. I think the KLM reference is merely to indicate where there's a new floor. It also mentioned Departure Halls, Piers and Gates, without. so far as I could see, any explanation.
It's also not clear where the security is, other than, as frequently mentioned, 'Central'. I have the impression the sequence is bag drop, security, then passport control for the flights needing it.
I also think, from a different thread, that all the shops, etc., are between security and passport control. Once through there, there's nothing (except, hopefully, toilets).
Speaking of bag drop, one video showed a passenger placing his luggage into a large plastic receptacle with a pull-down lid. Is this a self-service bag drop?
Apart from reading reviews, this was my principal source of information :
We'll be returning to the UK; strangely, I found the section on transit passengers far more understandable <g>