Whenever I try to review P2P and mempool (default) policy proposals I end up going round in circles around this maze of docs, mailing list posts and pull requests. Some of them are outdated, some present the latest state of proposal(s), sometimes two proposals are presented together, sometimes presented separately. Some docs I found really useful in the past I can't find anymore. Can you answer these questions and provide a link to the latest state of the proposal?
What is BIP 125? Which BIP 125 rules are still being enforced in default policy in Core today? Which aren't? Which BIP 125 rules have been replaced with alternative rules in Core today?
What (and where) is the proposed replacement for BIP 125?
What is V3 Policy? Is the proposed replacement for BIP 125 part of V3 Policy?
What is package RBF and is this part of V3 Policy or a separate proposal to V3 Policy? Is the intention that package RBF will (eventually) be enabled at the same time as V3 Policy or can they be enabled at different times?
I get the proposals are evolving over time (and so no criticism necessarily directed towards the authors) but this confusion makes it really hard for me to follow what is going on.