The newest OSX version: http://www.apple.com/osx/whats-new/.

On October 8, 2015 6:57:15 PM CDT, Hugo Rivera <uair00@gmail.com> wrote:
Who is el capitán?

2015-10-08 19:06 GMT-04:00 marius eriksen <marius@monkey.org>:
 works great. and the split view feature is fantastic with full screen acme.




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Sent from my Nexus 5 with K-9 Mail. Please excuse my brevity.