The biggest change is in stability: with WKWebView’s out-of-process rendering, when the web view crashes or runs out of memory, it won’t bring down all of Chrome with it. As a result, Chrome crashes 70% less with WKWebView. Even when counting the “Aw, Snap!” page shown when the renderer crashes, there’s still a big improvement.For the web, Google also created a new extension called "Data Saver," that will allow Chrome users the ability to manage data usage while outside of their home Wi-Fi. Similar in function to the extension available for Android devices, Data Saver reduces the data needed to access the web with the help of the company's "compression technology." The extension lets users see exactly how much data they saved and highlight which websites are using the most while out of the house.
Google said that the iOS Chrome update will begin rolling out starting today, and all users have to do is check for the update in the App Store [Direct Link] if they don't feel like waiting for an automatic update.