Upgrading from sitecore 6.6 to sitecore 7.0

Upgrading from Sitecore 6.6 to Sitecore 7.0 involves several steps which are outlined below:

1. Pre-upgrade Steps: - Back up your current Sitecore 6.6 website files and databases - Check Sitecore upgrade documentation for any specific requirements for your current version and your desired upgrade paths - Make sure your hardware and software meet the technical requirements for Sitecore 7.0

2. Upgrading the Database: - Install Sitecore 7.0 databases and run SchemaUpdate script to upgrade the database schema - Verify that the databases have been upgraded successfully

3. Prepare the Files: - Download and Extract the Sitecore 7.0 files from Sitecore’s official website - Copy the Website, Data and App_Config directories from your Sitecore 6.6 instance to your Sitecore 7.0 instance.

4. Upgrade Sitecore 6.6 using Update Installation Wizard: - Launch Sitecore 7.0 Installation Wizard - Choose the “Sitecore update package” and select the update package for updating from version 6.6 to version 7.0 - Proceed with the installation wizard until the update has completed successfully.

5. Post-Upgrade Steps: - Verify that the website and Sitecore instance is up and running correctly after the upgrade - Check your website for any issues or errors that may have resulted from the upgrade - Confirm that Sitecore modules and custom code are still functioning correctly - Update any custom code for compatibility with Sitecore 7.0 These are the general steps for upgrading from Sitecore 6.6 to Sitecore 7.0. However, it’s always recommended to refer to the official Sitecore documentation and seek professional help if required.