Mac OS X 10.11.1 was an update to Mac OS X 10.11 released on October 21, 2015. This update includes the following: * Improves installer reliability when upgrading to OS X El Capitan. * Improves compatibility with Microsoft Office 2016. * Fixes an issue where outgoing server information may be missing from Mail. * Resolves an issue that prevented display of messages and mailboxes in Mail. * Resolves an issue that prevents certain Audio Unit plug-ins from functioning properly. * Improves VoiceOver reliability. * Adds over 150 new emoji characters with full Unicode 7.0 and 8.0 support. * Resolves an issue that caused JPEG images to appear as a gray or green box in Preview.