Update 1.10 will be released tomorrow sometime after 11 AM PDT when Dungeon Challenge completes and rewards are distributed. Check out the previous patch notes for details.
Note that because of the timing, the currently active Battle Tower event will visually reflect the new rewards as part of the update. Any rewards already claimed in the Tower will be what they were when the event started. Any unclaimed rewards will reflect the new reward schedule.
Grab the update on the App Store, Google Play and at the Amazon App Store. Please be sure to refresh the store after the update notice has been broadcast to find the update. Note that Amazon users may experience delays, if so, please check back regularly.