Zen Cart® is made available to you for your use, addition, changes, modification, etc. without charge, under Version 2 of the GNU General Public License.
While we do not charge for this software, donations are greatly appreciated, each time you install a new version, to help cover the expenses of maintenance, upgrades, updates, the free support forum and the continued development of this software for your online E-Commerce store.
Donations can be made on the Zen Cart® Team Page
We appreciate your support.
The Zen Cart® Team
For a listing of what is new in this release, please see the whatsnew_1.5.6.html file in the /docs folder.
You may also consult the Zen Cart® Support Forum.
A detailed list of all edits to all files can be seen on Github at: v1.5.5f...v1.5.6a
And a full list for just v1.5.6-to-v1.5.6a on Github at: v1.5.6...v1.5.6a