Just a day after releasing a new set of developer builds for iOS 9 and OS X El Capitan, Apple today launched its public beta program for both upcoming operating systems. Apple had announced at WWDC last month that it would launch the public betas in July, and a new support document published yesterday regarding changes to two-factor authentication hinted a launch was imminent.

iOS and Mac users interested in trying out the public betas can sign up on Apple's beta software program page

We'll be looking for any changes specific to the public beta versions, but they are almost certainly essentially identical to the developer seeds released yesterday.

iOS 9 is the first major version of Apple's mobile operating system to see a public beta release, as the company did not initiate the program for iOS until iOS 8.3 earlier this year. OS X users may already be familiar with the public beta process, as a similar program was in place for OS X Yosemite last year.