https://www.theverge.com/circuitbreaker/2018/11/7/18072996/apple-macbook-air-2018-battery-trackpad-individually-replaced

Apple has developed a way to replace the new MacBook Air’s battery without swapping out the entire top of the keyboard, MacRumors reports based on Apple’s internal service guide for the device. That’s slightly more environmentally friendly than the situation on other modern MacBooks, which have so much glue inside the frame that the entire thing would have to be replaced in the event that the old battery needed to be changed.

Apple will now give Genius workers and authorized service providers the tools needed to remove the glue from the battery, without affecting anything else. After removal, the workers will add glue strips to attach a new battery. According to the same service guide MacRumors saw, technicians will also be able to replace trackpads without swapping out more of the laptop’s case. We’ve reached out to Apple to confirm this report.