Your license to use React.js can be revoked if you compete with Facebook 

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If you are using or considering using React in a project you might want to consult a lawyer. Because of the patent clause you are not allowed to do anything that constitutes as competing with Facebook. If you do take legal actions or in other ways challenge Facebook, your license to use React is immediately revoked.

With Facebook having so many products already, and constantly acquiring more, it'd be hard to start a new product on React.js without risking that your license for it being revoked - even if they weren't a competitor before you started.  In reality I doubt it's a problem, but what a clause!

In iOS 10 Apple now treat the lock screen like an app 

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One of the biggest changes found in iOS 10 will be one of the first things you see upon installing the update. Indeed, the Lock screen in iOS 10 has received what amounts to an overhaul and a rethinking of its functionality.

iOS 10 Lock Screen

In iOS 10 slide to unlock is no more. You now simply press the home button to unlock the device. This now makes the lock screen like any other app - as simply clicking the home button quits the current app and always takes you to the home screen of app icons.

With Touch ID being so fast on newer iPhone models, the simple act of tapping the home button will unlock and open the home screen. If you've got a passcode then it'll not feel so smooth - you'll still be taken to another screen to put that in.

If you've not got a test device with iOS 10, 9to5Mac has a hands-on video with the new lock screen.

Could iOS 10 let Apple update system apps without an iOS release? 

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If you update to iOS 10 beta, you can remove some built-in apps from the Home screen on your iPhone, iPad, or iPod touch.

Soon Apple will let you remove built-in apps from the Home screen on your iOS device with iOS 10 betaThis fully removes the app, freeing up to 150mb of space.

As the apps are completely removed, there will be a mechanism to redownload them to restore use. It makes use of the App Store for this, which opens up the opportunity to push updates separately from iOS releases...

The apps you can remove, and have the potential to be updated are;

  • Calculator
  • Calendar
  • Compass
  • Contacts
  • FaceTime
  • Find My Friends
  • Home
  • iBooks
  • iCloud Drive
  • iTunes Store
  • Mail
  • Maps
  • Music
  • News
  • Notes
  • Podcasts
  • Reminders
  • Stocks
  • Tips
  • Videos
  • Voice Memos
  • Watch app
  • Weather