Since 10.11.1 is a point release, it includes all primary El Capitan features: OS X El Capitan - App Store - Apple
This file is hidden inside the Install OS X El Capitan.app bundle. It is used by the system to perform the installation and can be extracted to create a . Location : Contents/SharedSupport/InstallESD.dmg.
OS X El Capitan 10.11.1 (build 15B42) was the first major update following the initial release of El Capitan in 2015. It focused on stability and compatibility, notably for , while adding support for over 150 new emoji characters . Mac OS X El Capitan 10.11.1 (15B42) InstallESD
: Fixed issues with certain Audio Unit plug-ins and enhanced VoiceOver reliability. What is InstallESD.dmg?
: Resolved issues where outgoing server information might be missing and fixed a bug preventing the display of messages and mailboxes. Since 10
: Improved reliability of the installer when upgrading and fixed JPEG display issues in Preview (where images previously appeared as gray or green boxes).
: Introduced full Unicode 7.0 and 8.0 support, including the taco, burrito, and "middle finger" emoji. OS X El Capitan 10
The InstallESD.dmg file is the "Electronic Software Delivery" disk image containing the actual system files needed to install or restore the operating system. Key Features & Fixes in 10.11.1