Version 31 of Chrome for iOS also adds a new long press feature for images. When holding an image with a long press, Chrome will now automatically run a search for related images.
In addition, Google says the update brings stability and security enhancements.
What’s New in Version 31.0.1650.18
• Fast form completion with Autofill Tired of filling out web forms with the same information time and time again? The Autofill feature lets you complete forms with just a few clicks. Sign in to sync this data from your computer to your iPhone or iPad and save even more typing. • Long press on an image to search for related images • Stability / security improvements and bug fixes