EcoStruxure 2.0.3.45 hotfix and release notes can be found on Dropbox by clicking on the link below.
https://www.dropbox.com/sh/yferzfrvr2w4gwm/AAAVe8NOJr01yWxxnP5eJBRYa?dl=0
A list of the defects fixed and important defects not fixed are listed in the release notes.
It is also noted in the release notes to refer to the 2.0.1 release appendix A on process and procedures from upgrading a system that is running an earlier release than 2.0.