New Build of iOS 9.3 with Fixes for Recent Bugs Is Now Available for Download [Updated]
As you might have noticed, many users have encountered problems with activation of their iPhones and iPads and opening web links in Safari, Mail, Chrome and a number of other apps after updating to iOS 9.3. Because of these issues, the company has paused signing the update.
As of now, the updated version of iOS 9.3 is available for download, so if you have an older device, now you can update using either iTunes or an OTA-update.
You can read more about the problems and temporary solutions at links below:
If you can't activate your iPhone, iPad, or iPod touch after installing iOS 9.3 - Apple Support
Apple halts iOS 9.3 updates for older iDevices due to growing Activation Server Lock issues.
For those having problems with the iOS 9.3 update please read...
Thanks @Demo and @MichelPM for your informative posts with useful tips and solutions.
These links may also be helpful for those having problems updating their devices:
Update the iOS software on your iPhone, iPad, or iPod touch - Apple Support
Get help with over-the-air iOS updates - Apple Support
Resolve iOS update and restore errors in iTunes - Apple Support
Get help with iOS update and restore errors - Apple Support
Update: Apple has released iOS 9.3.1 with fixes for web links issue. You can download and install it right now using the instructions from this user tip.