SAN FRANCISCO--(BUSINESS WIRE)--Apple® today announced OS X® El Capitan, a new version of OS X that refines the Mac® experience and improves system performance. Building on last year’s landmark release of OS X Yosemite, El Capitan introduces enhancements to window management, built-in apps and Spotlight® search, and makes everyday activities — from launching apps to accessing email — faster and more responsive. Metal™, Apple’s breakthrough graphics technology, is integrated into El Capitan, del