The Changelog
The changelog is a physical file that contains a record of the changes made to the Zoo between each version. Each section will be denoted by the version number, followed by a list of changes, using the following legend:
* -> Security Fix
# -> Bug Fix
$ -> Language fix or change
+ -> Addition
^ -> Change
- -> Removed
! -> Note
Changelog Location
The main changelog for ZOO can be found by visiting /administrator/components/com_zoo/README.markdown. All ZOO modules have their own changelog which can be found in each module folder /modules/MODULENAME/changelog.php
While all efforts are made to keep the changelog up to date and accurate, it should be considered non-exhaustive and proper file comparison tools should be used to locate any modifications that may conflict with your installation.