Social tab: friends, clans and invites now live in one place. You can have up to 500 friends, and a small green dot shows when a friend is in a battle (turn it off in Settings > Notifications).
New Calendar on the home screen: see what is live now and what is coming up.
Friendly battles now count for Challenges: they need at least 10 turns, and the first 5 each day count (up to 3 against the same player).
Factions, until 13 October
Factions runs until 00:00 UTC on Tuesday 13 October. Battles against other sides have no daily limit (the limit of 20 still applies to all other battles).
The home scoreboard shows your own points and how close you are to the 3 you need for rewards.
Your side now shows under your name in battle and on other players' profiles.
Research
Once you have claimed every node, swap 1,000 Research Points for a Bronze Box, once a day.
Fixes and polish
The COLLECT button on Challenges works again on desktop and in landscape.
Text now fits in every language: menu names, buttons and page titles.
Shop: crossed-out bundle prices now show correctly in every currency.