I can't believe I'm asking as have always felt rules were reasonably easy to understand but actually on this occasion I can't find it clarified anywhere on gov page for guidance published on 9th Sept.
It clearly states that from 14th only groups of up to 6 may meet up inside or outside. It describes the exception for a bubble ie if you are in a bubble that brings you to 7 under the previous rules that is permitted but of course you can't meet with any other people while in that 7.
But it's completely silent on household numbers whereas before it specified only two households inside (at that time of any number of individuals)
I've heard lots of people state that now multiple households can meet inside provided the total number doesn't exceed 6, and I've seen it reported on news websites, but where does the government clarify this?