The new bottom navigation bar is the major design change, enabling switching between views while looking at photos rather than having to tap the menu icon and select Photos or Assistant from the slide-out panel.
The other main view, Collections, has now also been renamed to a less confusing Albums. Again, for easier navigation, Google has added a carousel at the top of the Album view for users to scroll through shared albums, people, places, things, animations, collages, movies, and device folders.
For now the update is exclusive to Android but Google says the same changes will be available for iOS soon.
One of the first updates to Google Photos for the desktop since then came this week with the introduction of a new feature that allows users to enter and stay in editing mode while switching between images.
The edits are saved on the go and unwanted changes can be reverted. A new aspect ratio selector feature also offers a choice between original, square, 16:9, and 4:3.
Presumably, Google will soon also rename Collections as Albums on the web version of Google Photos but that has yet to occur.