Apple’s next major iPhone software update isn’t officially launching until the fall, but the company is letting users test an early version of it starting Thursday.

The update, iOS 10, is one of the biggest iPhone software releases in recent years. Apple is giving third-party developers access to services like Siri and iMessage, and the company has redesigned some of its own apps, like Maps, Apple Music, and Clock.

Here’s a look at what I liked the most about Apple’s new iPhone software after spending a few days with it. It’s important to remember that this is an early version of the software, so not every new feature is working just yet.

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