Welcome to Zen Cart®

The Zen Cart® software is made available to you for use, additions, changes, modifications, etc. without charge, under the GNU General Public License.

While we do not charge for this software, donations are greatly appreciated each time you download 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 at: The Zen Cart® Team Page

We appreciate your support.
The Zen Cart® Team

Zen Cart® is derived from: Copyright 2003 osCommerce
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
and is redistributable under the GNU General Public License

O S I Certified
This software is OSI Certified Open Source Software.
OSI Certified is a certification mark of the Open Source Initiative.

About PHP versions

Zen Cart® v1.5.3 is compatible with PHP 5.2.10 through PHP 5.6, and MySQL 5.1 thru 5.6

(Note: security features are stronger when using PHP 5.3.7 or newer.)

Upgrade Instructions

Note: we mention both 1.5.2 and 1.5.3 here, because 1.5.2 was only released as a beta.
The incorporation of bcrypt for password security necessitated a version-number increase, hence the jump to 1.5.3.
This document only mentions the actual changes specific to 1.5.3. If you want to see the long list of 1.5.2-specific improvements, see the whatsnew_1.5.2.html file.

From v1.5.1 to v1.5.2 or v1.5.3

Simple: if you are using v1.5.1 already and have not customized any of the files listed in the changed_files-v1-5-2.html and changed_files-v1-5-3.html documents, then simply replace those files with the new versions contained as listed in those documents.

If you HAVE customized or altered certain files, simply re-do your customizations in the new version of those particular files by making the same changes needed.

If you are using Addons/Plugins that have made alterations to those files, it is best to compare those changed files against the original v1.5.1 files, and see what changes were there ... and then re-build those changes in the v1.5.3 file.

To v1.5.3 from v1.3.9h or older

If you are upgrading from a version OLDER than v1.5.1, then please do a standard complete site upgrade.

CHANGELOG - List of Changed Files

For a list of files that have been changed since v1.5.1, see the changed_files-v1-5-2.html and changed_files-v1-5-3.html documents

Whats New ... Changes from v1.5.2 to v1.5.3

The following improvements and bugfixes are included in v1.5.3 since v1.5.2-beta2:

Improvements: Fixes:

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