I don't have a great solution for that, really, other than ensuring that updates are highly visible in a room where people are likely to read them and have a go

I don't have a great solution for that, really, other than ensuring that updates are highly visible in a room where people are likely to read them and have a good culture around helping folks. I've been in environments like the one you describe, and I think at the end of the day it's more of a cultural issue than something that can be solved using a tool.