iOS 10 beta 1 was released just a few minutes ago by the Apple company for application developers for the iOS platform, this being the first build offered for the new version of the operating system, many more to follow during the summer.
Any developer who had a beta version of iOS 9 installed in their iPhone, iPad or iPod Touch will be able to install iOS 10 beta 1 directly from the menu Settings > General > Software Update, Configurations > General > Software Update, the update appearing immediately.
Given that the public beta version of iOS 10 is to be released in July for regular users, those who used iOS 9.x public beta will not be able to enjoy this build until then, so you will have to be patient for any problems to be resolved.
Moving from iOS 9.3.3 to iOS 10 beta 1, the Apple company requires that 1.9 GB of space be available in the iPhone 6S Plus to perform the update, the size being smaller in the case of other terminals, all depending on the model you have.
During this evening and tomorrow I will present you all the new functions of iOS 10.
UPDATED: watchOS 3, tvOS 10 and macOS Sierra 10.12 beta 1 have been released.
