iOS: Chrome for iOS is great, but one of the weird quirks was that swiping left or right brought up a tab view instead of navigating a tab’s history. That has now been fixed.
iOS/Android: With mobile data caps becoming ubiquitous, anything you can do to reduce data consumption helps. Depending on your OS, Chrome has a couple of options you can use to cut that number down while browsing.
iPhone: Google has updated the Chrome browser for iOS with a new download feature. It also gets better support for the iPhone 6/6+.