I am a great fan of the DBRE book, and an avid follower of the authors’ podcasts, videos and blog posts.
But there is one glaring omission that I can’t find discussed properly anywhere: upgrades.
You need to patch to fix bugs or address vulnerabilities. You need to upgrade for support and new features that developers want.
I understand that site-specific needs make it hard to proclaim detailed edicts. But the DBRE book isn’t about detailed edicts. It’s about principles and a way of working.
