In reply to Ray Mitchell.

Same as Ray, if Yoast comes with an update I wait until I don't hear anything for a week, otherwise I'll have to update every day and that gets old very fast.
As I am managing many different sites for clients too, I usually do a quick read what has changed, so I know whether it is safe or not to update. In case I am not sure, I do some more research or a quick test install to see whether it breaks anything.
Before developing my own plugins I was not too serious about the changelog, but now I read them every time.