Reviewing software PTF (fix) requirements

Before you begin the IBM® i installation process, make sure that your system is ready by reviewing your requirements for program temporary fixes (PTFs).

Finding the latest PSP information
Keep informed on the most recent information about conditions that might impede your IBM i software installation process.
Analyzing fixes you currently have on your system
A fix cross-reference summary list enables you to analyze the program temporary fixes (PTFs) and Licensed Internal Code fixes you currently have installed on your system.
Permanently applying program temporary fixes (PTFs)
Temporarily applied PTFs require a considerable amount of disk storage space. Follow these procedures only for IBM i products and temporarily applied PTFs that you have verified on your system.
Adding fix support for currently installed licensed programs
IBM licensed programs that are installed on your system are not automatically supported after an IBM i upgrade to a new release.

Parent topic: Preparing the system for IBM i software upgrade or replacement