In 2026, the specific items you must remove from your carry-on depend on whether the airport uses older X-ray machines or modern 3D CT scanners. At most standard checkpoints, you are required to remove large electronics (laptops, tablets, and gaming consoles) and place them in a separate bin with nothing covering them. You must also remove your 3-1-1 liquids bag (gels, aerosols, and pastes in 100ml containers). However, at advanced terminals, such as those at London Gatwick or major US hubs equipped with new scanners, you can often leave everything, including liquids and laptops, inside your bag. Regardless of the machine type, you must still remove "outerwear" like heavy jackets, hoodies, and belts. If you have TSA PreCheck, you generally get to keep your shoes on and leave electronics and liquids in your bag. It is always a "pro-tip" to pack food and powders in your checked luggage, as these can sometimes obstruct X-ray images and trigger a manual bag search, even with the latest 2026 technology.