In addition to releasing iOS 8.1.1 for iPhone and iPad users, Apple has released OS X Yosemite 10.10.1 with bug fixes and performance improvements for Macs running the latest version of the desktop operating system. Mac users that have experienced WiFi performance issues running Yosemite should expect improvements with this bug fix release. The update is available for Macs running OS X Yosemite through the Updates tab of the Mac App Store.
Microsoft Exchange November 17, 2014
Microsoft Exchange February 19, 2013
Microsoft Exchange February 15, 2013