What the Lumia 640 tells us about Windows Phone 8.1 Update 2

When we looked at the new Lumia 640 and 640 XLs earlier this week, we spotted a small change from the version of Windows Phone 8.1 that's currently shipping.

Over the past few days, a few more differences have been noticed, as has the name of the set of updates: it's called Windows Phone 8.1 Update 2. We don't know when it'll ship—Microsoft hasn't even officially announced it—but it'll contain a smattering of interface and functional changes.

The interface we spotted is a minor thing. At the bottom of the Start screen, where Windows Phone 8.1 has a right-pointing arrow to show that you can scroll right to see the all apps view, Update 2 adds some words: it now says "all apps."

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