Looking at the recommendation to follow all the requirements through the various version to upgrade from 2.10.0 to 3.5.0 seems like there would be a huge opertunity for something to go wrong.
My question: Is there a scripted process for performing such an upgrade?
I'm extreemly nervous about performing so many steps and taking down the entire platform for much longer than necessary. Recovering inbetween these individual upgrades, especially if there are db modifications, would make this upgrade way more fun than necessary.