Apple released iOS 10.3 yesterday with a new modern file system but like any software update there are many undocumented changes.

One particular change has been revealed through Apple engineer Renaud Lienhart‏, who works directly on the iOS operating system. “iOS 10.3 feels ‘snappier’ because many animations were slightly tweaked & shortened, for the better,” says Lienhart on Twitter.

iOS 10.3 feels “snappier” because many animations were slightly tweaked & shortened, for the better.

— Renaud Lienhart (@NotoriousBUGS) March 28, 2017

Apple’s new file system in iOS 10.3 should help make the OS feel a little faster, too. As APFS is designed to be low latency, this should also improve read and write speeds on iOS devices.

iOS 10.3 could help rectify the many frame drops, skips, and odd interface bugs in iOS 10.