This old mantra is set up to support complacency.
By Steve Pitcher
A couple weeks ago, I upgraded an old Model 520 to a POWER9 S914 in Ontario, Canada. It was a great coup for a couple of reasons, the first being that these folks were off IBM hardware and software maintenance for about 10 years or so. They were having physical problems with the old machine, and it was really on its last legs. Secondly, considering we brought them from IBM i 5.4 all the way up to version 7.2, we had to navigate past a few object observability issues. We had to work with a couple of software vendors to get updated objects, which worked out marvelously.