The sunrise bearing is corrected. Refraction used the wrong formula, and the skyline came from radar that counted tree tops as ground; the two errors hid each other and put the midsummer sun half a degree north of where it rises. The terrain is now bare-earth LiDAR from the Environment Agency, checked against a photographic panorama taken inside the circle. The Milky Way, from NASA's map of the Gaia sky, turning with the stars and precessing with them. A zodiac-only sky: a new switch keeps the stars of the twelve zodiac figures and the planets, and puts the rest out. Faster. The scene is drawn at 0.7 scale and lifted by MetalFX, the grass thins with distance, and the shadow maps are redrawn only when something moves — about 60% more frames a second at the sunrise on iPad Pro. With thanks to Simon Banton and David Hoyle for the skyline check.

The Full version purchase now works. It could not be completed in the previous release. Smooth panning. A new toggle gives the view weight: a drag builds up speed, and when you let go the camera coasts on and settles. Slow pans, tilts and crane moves over the stones become possible. Direct dragging is unchanged, and stays the default. The free camera now swings all the way down to the turf, and stops at eye level. Accessibility. Every control now tells VoiceOver its name, in all nine languages, and the Mac gains a Monument menu with a keyboard shortcut for every function.