The most important improvement is found in the Media Cache. Version 11.1.1 restricted the cache management preference to be applied to files within the Media Cache folder structure, Adobe says the 11.1.2 update only applies the preference to media cache files of a known file type, for example, *.pek, *.ims and *.cfa. Only those files will be deleted according to the cache management preference; the folders in which they reside will remain on the system. Media Cache management will be off by default.
Improvements also have been made to graphics and text editing workflows. Layer anchors can be positioned more precisely with anchor point snapping, graphic elements can be positioned more precisely and keyboard navigation has been updated. A number of bug fixes have been made, as well.
Additionally, Adobe has addressed stability and general performance issues, format and file support, and other general bug fixes.
Get additional information and see the entire list of improvements and fixes at the Creative Cloud blog.
The update can be installed through the CC desktop app, or new updates can be checked from within any CC app by navigating to Help > Updates. Adobe says it can take 24 hours or more for its global data centers to receive the update, and if the update isn’t available, to check back later.