The update significantly improves the apps address bar as it simplifies search engine switching and provides a more comprehensive search range.
Regarding the latter enhancement, you can adjust your search range by going to Search Suggestions under Search Engine Options in the apps settings. There you can select your search options (best match, bookmark, history, search engine, contacts, file manager, speed dial, reading list) and reorder them.
The new version of Mercury Browser Pro also lets you add buttons in the address bar for quickly accessing the apps voice search and QR scanner functions. It also lets you customize your search experience with more than 20 built-in search engines.
The latest update to Mercury Browser Pro also adds a couple of new features in iOS 8.
One is a Today widget, which you can customize in the apps settings to provide quick access to your favorite search engines, voice search, the QR scanner, and your speed dial sites. The other is support for logging in to sites via 1Password integration.
Mercury Browser Pro
The newly updated Mercury Browser Pro also includes various bug fixes and display optimizations for iPhone 6 and iPhone 6 Plus.