You really don't have to. If you're subscribed to the mailing you just get an email every month or two. Most of the time it either won't apply to you, or it'll just be a nice-to-know. Every once in a long time (last time for me was 18 months ago) you'll actually have to remember for the next time you upgrade. Otherwise you can just upgrade and you'll be fine.

It's honestly incredibly low-maintenance. You just have to spend a relatively long time setting things up first.