The team heading above a list in the mobile app now shows only the team name, such as "Acme Ltd", instead of "Acme Ltd documents" under a screen already titled Documents. The Documents list no longer repeats the team name as a second heading.
Spreadsheets no longer has a separate row for choosing between the team and Shared with me. As on Documents, your team's spreadsheets are listed first, followed by those shared with you.
Messages has the same team heading as other lists. Tap it to switch team and see that team's channels and direct messages.
Website administration, including Promotions and Data Removal activity, has been removed from the app. It is available on the website only.