Yes it has changed a bit that you can now bring breastmilk and juice and other things through security and onto the flight. When we flew with Hannah twice before we were allowed liquids you just tell t hem you have them and someone takes you over to the side and basically just shines this little light on the bottle. don't know exactly how that works but it only takes a few seconds and then you go through.

That being said... we don't fly anymore because I just am NOT a good flier anymore. It's one of the very few things that sends me into complete panic attack mode even days before the flight. So now we drive lol.