We have been doing some testing of the upgrade to SAS 9.2 M3 in preperation for SAS BI 4.3.

Have to say the upgrade was simple and painless.

Download the new install depot (using donwload manager so it only downloaded updated files not the whole 30Gb again), then run the SAS Deployment Wizard.

You will be presented with some great screens that tell you what you are going from and to for each SAS product: