# Welcome to Zen Cart®

## Zen Cart® Documentation

1. Introduction
   - About Zen Cart®
   - Implementation Guide for v156 (PDF)
2. Read Me First
   - Installing Zen Cart®
   - Upgrading Zen Cart®
   - Securing Your Zen Cart® Store
3. New Features and Bug Fixes
   - New in v1.5.6
   - New in v1.5.5
   - New in v1.5.4
   - New in v1.5.3
   - New in v1.5.2-beta
   - New in v1.5.1
   - New in v1.5.0
4. Changed Files
   - Changed in v1.5.6 (since v1.5.5)
   - Changed in v1.5.5 (since v1.5.4)
   - Changed in v1.5.4 (since v1.5.3)
   - Changed in v1.5.3 (since v1.5.2)
   - Changed in v1.5.2-beta (since v1.5.1)
   - Changed in v1.5.1 (since v1.5.0)
   - Changed in v1.5.0 (since v1.3.9h)
5. Help and Support
   - Tutorials and FAQs
   - Support Forum

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 Version 2 of the GNU General Public License.

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

Copyright 2003 - 2018 Zen Ventures, LLC
Zen Cart®
www.zen-cart.com