Couple of Questions

Hi, I have a couple of questions regarding package maintenance - apologies if this is covered elsewhere; I couldn't find anything. - How long does it usually take between updating a package and it being pulled into the repo? - In regards to updating a package what is the process in regards to review. I'm presuming that anything more than a version bump - requires a review? Or am I wrong - does every commit have to be reviewed? Thanks in anticipation, Dominic