We are currently running Oracle 18.104.22.168.0, but because I have a customer who is running 22.214.171.124.0, I need to upgrade to this version. My first question is what are the best practice steps to complete this upgrade. For example, is the patch cumulative? In other words, can one install it alone or do we need to apply each patch file between 126.96.36.199.0 and 188.8.131.52.0? Second question is where the patch file can be located. I cannot find this patch anywhere. The OS is Windows 2003 R2.