Another day, another A/B test has come our way at Android Police. This time, Google is testing out a new Inbox search UI, replacing the dropdown search menu that's been ever-present since Inbox launched.

The UI shows three categories: contacts, businesses, and refinements. Contacts and businesses show people or companies that you regularly contact, while refinements highlights other options you may be likely to search for, such as 'sent emails from last week,' or 'attachments.' These are side-scrolling, with what looks like six options in each row, although it could be more. It's possible this is the first indication of the "Assistant" feature Cody unearthed in a recent teardown, but we can't really be sure.

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