How to upgrade from V8. Follow the steps described below and upgrade to the latest version
www.yoursite.com/install/upgrade) and you'll see the following sections. Please complete them:
When upgrading, the installation page will display your current database version and the status of your license.
To proceed with the database upgrade, enter your admin credentials.
Next, connect your PHP Pro Bid account, to verify your existing license.
Following the page listing the requirements for upgrading to V9, you'll see the exact software version you have. All you have to do now is click on Submit.
Now, you'll be shown a page confirming the successful upgrade.