Review Hardware and Software Environment

Check the PeopleSoft Customer Connection website to get the Hardware and Software guide. This guide outlines the hardware and software requirements for the new release. These are the minimum levels require to operate your PeopleSoft system for new release.
For Example, before you begin a upgrade, make sure that you are on supported release for the upgrade to PeopleSoft 9.0. Ensure that you have reviewed this guide thorougly and begin the acquisition process for any hardware and software upgrades that are not delievered by PeopleSoft. You can find this document by navigating :

• Implement, Optimize, and Upgrade
  
  
• Upgrade Guide
  
  
• Upgrade Documentation and Scripts
  
  
• Hardware and Software Requirements

Also, check the PeopleSoft New Release notes that would provide the information on platforms that are certified.

• Implement, Optimize, and Upgrade
  
  
• Upgrade Guide
  
  
• Upgrade Documentation and Scripts
  
  
• Release Notes
  
  
• Enterprise
  
  
• PeopleTools

Release notes should help you to determine what has changed in the system, and to familiarize with new features. They also provide you with detailed information regarding application changes.