Apple's rolled out another beta version of iOS 7 to developers, its fourth so far.
The software went out to developers Monday morning, though was originally anticipated for a release last week. The release was believed to be delayed given downtime of Apple's developer site, which is still coming back online following a security breach earlier this month.
Per Apple's mysterious change log, the software brings "bug fixes and improvements." More specifically, the company's made some changes to the look and feel of the lock screen, camera and call functions. BGR has posted a full change log here.
The software is under closer watch than previous iOS releases. iOS 7 brings an overhauled design for every part of the operating system, while remaining largely the same in terms of functionality. Onlookers are expecting a few more changes before it's finalized.
The public release of the software is scheduled for this fall. As a frame of reference, last year's iOS 6 went through five betas before it was released to consumers.
Signs Apple intended to released the software appeared earlier Monday, with download links to the new build briefly appearing on Apple's developer site. Separately, BGR reported Monday that Apple's planning on two more developer betas, with a golden master (the version that's released to the public) planned for September.
Updated at 11:08 a.m. PT to note some of the changes.