Access Control List
From Joomla! Documentation
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Overview of ACL in Joomla! 2.5[edit]
Joomla!
2.5
This section outlines the major ACL changes between versions 1.5 and 2.5 series (including 1.6 and 1.7). The table below summarizes the major changes from version 1.5.
| Version 1.5 | 2.5 series | |
|---|---|---|
| Groups | 7 fixed groups (Public, Registered, Author, Editor, Publisher, Manager, Administrator, and Super-Administrator) | Unlimited user-defined Groups |
| Users & Groups | A User can be assigned to only one group | A User can be assigned to multiple groups |
| Access Levels | 3 fixed Access Levels (Public, Registered, Special) | Unlimited user-defined Access Levels |
| Access Levels & Groups | Relationship between Groups and Access Levels was fixed. | Groups are assigned to Access Levels. Any combination of Groups can be assigned to any Access Level. |
We see that in every case the ACL has been made much more flexible since 
, with unlimited Groups and Access Levels, and the ability to assign one User to multiple Groups and any Groups to any Access Level.
See also[edit]
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