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Here are the 2 biggest changes that just hit your iPhone

By Alex Heath
iphone 5se with 6s plus
Steve Kovach/Tech Insider
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On Monday Apple released iOS 9.3, its latest software update for the iPhone and iPad.

Now that the update is out, here are the two biggest features you should know about:

Night Shift mode will make it easier to read at night.

iOS 9.3 Night Shift mode iPhone.JPG
Alex Heath / Tech Insider

Plenty of scientific research has shown that it can be harmful to look at your smartphone's screen at night — doing so can negatively affect your sleep quality and cause even more serious health problems.

Apple's Night Shift mode automatically makes the display's color palette warmer as the sun sets. Check out our detailed Night Shift guide for more.

You can secure the Notes app with your fingerprint.

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Tech Insider

If you want to make sure prying eyes can't peep your notes in the Notes app, iOS 9.3 lets you lock individual notes with a password or your Touch ID fingerprint. Tap the share menu from a note and "Add Password" to get started.

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Alex Heath BI portrait
Alex Heath
Alex was a senior reporter for Business Insider in New York City, where he mainly covered tech companies in the social media space, like Facebook, Snap, and Twitter. Before that, he covered apps and streaming services for Business Insider's consumer tech vertical, Tech Insider.
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