The new name for OS 10 is OS X El Capitan, The El Capitan is available to all the developers from today itself. The El Capitan is better in usage and smarter in its ways.
The basic features of the same are:Easy and detailed search. You can write :” Mails that were ignore by me from Mr. X” and you will get exactly what you want to see. Ability to work on two windows side by side and keeping them on the desktop El Capitan makes all kinds of things run faster — like accessing email, opening apps, or switching between them. With El Capitain, Split View automatically positions two apps side by side, [...]