As expected after the Monday release of the second developer betas of the latest versions of OS X, iOS, watchOS and tvOS, Apple today released public betas of OS X and iOS.
The new iOS 9.3 beta 2 includes updated Night Shift settings and a way to control the new mode from Control Center (see image above). Night Shift changes the color temperature to a warmer hue during evening hours to make the display on your iPhone, iPad or iPod touch easier on the eyes and hopefully make it easier for you to fall asleep.
OS X 10.11.4 beta 2 brings secure and password-protected Notes that sync with iOS 9.3, and support for viewing and sharing Live Photos with the Messages app. Apple notes that there are also changes to the iBooks and Photos apps.
If you're signed up for the public betas, the updates are available in Settings > General > Software Update on iOS devices or in the Mac App Store > Updates on Macs.