MacRumors posted a story that Apple today released the seventh beta of OS X 10.11 El Capitan to developers for testing purposes

In recent weeks, Apple has been pushing rapid updates for OS X El Capitan, all of which have focused on under-the-hood performance improvements and bug fixes to optimize the operating system ahead of its public debut. Few design changes have been made in the most recent betas, but beta 7 includes some minor tweaks like a new Safari welcome screen, a new color for the El Capitan logo in "About This Mac," and a setting to disable the "Shake mouse pointer to locate" feature. OS X El Capitan is designed to improve features introduced with OS X Yosemite, focusing on performance and user experience.

  Apple Seeds 7th OS X 10.11 El Capitan Beta to Developers, Reseeds 5th Beta to Public Testers