Apple releases sixth betas of iOS 9.3, watchOS 2.2, OS X El Capitan 10.11.4
Developers and public beta testers can now get their hands on the sixth pre-release betas of iOS 9.3, and OS X El Capitan 10.11.4, while a new build of watchOS 2.2 is also available exclusively for developers.

Apple launched all three new builds on Monday, though watchOS is not a part of Apple's public beta program. They arrive less than one week after the fifth beta builds launched.
iOS 9.3 beta 6 is identified as build 13E5231a. watchOS 2.2 beta 6 carries the build 13V5143a, and OS X El Capitan 10.11.4 beta 6 is build 15E61b.
Apple had been releasing new tvOS builds alongside the other trio of betas in recent weeks. However, as of Monday afternoon, tvOS remained on the same build released last week.
iOS 9.3 will add a number of features, such as a Night Shift mode, secure Notes, and extra 3D Touch shortcuts. It will also implement capabilities aimed at schools and enterprise, such as a Classroom app for teachers and more control over apps and home screens. Apple Pencil navigation has also been restored to the iPad Pro as of iOS 9.3 beta 5.

OS X 10.11.4 includes a handful of new features, like individually encrypted items in Notes, and support for displaying iPhone 6s Live Photos in Messages. It also patches a bug related to opening links on Twitter via Apple's Safari browser.
watchOS 2.2 -- when used in conjunction with iOS 9.3 -- will allow owners to pair multiple Apple Watches to a single iPhone, and brings a new look the Maps app's Glance view.

Apple launched all three new builds on Monday, though watchOS is not a part of Apple's public beta program. They arrive less than one week after the fifth beta builds launched.
iOS 9.3 beta 6 is identified as build 13E5231a. watchOS 2.2 beta 6 carries the build 13V5143a, and OS X El Capitan 10.11.4 beta 6 is build 15E61b.
Apple had been releasing new tvOS builds alongside the other trio of betas in recent weeks. However, as of Monday afternoon, tvOS remained on the same build released last week.
iOS 9.3 will add a number of features, such as a Night Shift mode, secure Notes, and extra 3D Touch shortcuts. It will also implement capabilities aimed at schools and enterprise, such as a Classroom app for teachers and more control over apps and home screens. Apple Pencil navigation has also been restored to the iPad Pro as of iOS 9.3 beta 5.

OS X 10.11.4 includes a handful of new features, like individually encrypted items in Notes, and support for displaying iPhone 6s Live Photos in Messages. It also patches a bug related to opening links on Twitter via Apple's Safari browser.
watchOS 2.2 -- when used in conjunction with iOS 9.3 -- will allow owners to pair multiple Apple Watches to a single iPhone, and brings a new look the Maps app's Glance view.
Comments
• Safari tab thumbnails in iOS.
• app thumbnails in task switching in iOS.
• beyond abysmal text selection behaviors in Safari on iOS.
• behavior of autocorrection on webpage text boxes (spontaneously fails to work, most often at start of new lines).
• weather info absent from notification screen at random times (forcing user to open weather app to get it to function again).
• Mac OS X mouse pointer/tab bugs when viewing jpeg image URLs in Safari (mouse pointer doesn't change for correct context).
Behaviorsl issues (see, example of autocorrection issues at the start of this line):
• the way control center swipes and keyboards interfere with each other.
• the ridiculously verbose weather info on the notification screen which often doesn't even tell you the current temperature.
etc.
yes I've reported all of this to Apple
Then click the watch app on your iPhone .
In settings -> general (in the watch app)... you'll see the upgrade software option
No. Like so many you assume your experience is the norm. Perhaps you would do better by requesting assistance from the Apple Discussion forums. There are many longtime experienced users willing to help you resolve issues like yours. And leave any snark or frustration at the door. Ask politely and don't rant and rave or bash Apple.
Also, frequently, if you can manage to mark the area you want, you can't then copy it as the pop up does not appear.