Google Camera v4.4, which first popped up in a recent Android O Developer Preview, is now publicly available on the Play Store. The new release brings front-facing selfie flash (via your screen), double tap to zoom, a toggle button for photos/video, and a slightly larger-looking shutter button. These are all small changes, but they do each give you another way to do things in the app, and choice is always good.
Google Camera v4.4 update with selfie-flash, double-tap to zoom, and a new toggle rolling out on the Play Store [APK Download] was written by the awesome team at Android Police.