Gloria Zhao

Last push: - Renamed s/pckg/pkg everywhere, updated diagrams - Removed fee and weight information from `pkginfo1`

Closing as the updated proposal is going to be significantly different from this one, which has no number assigned, and I think it would be confusing.

Some suggestions for things to add: - Observe pre-syncing step during IBD (#25717) - Try new RPC sendall (#25874) - Try new RPC gettxspendingprevout (#24408) - Try -mempoolfullrbf option (#25353)

This mutex no longer exists since #26036 / bf12abe4542f2cf658516ea7e7fbbff6864c2208. Closing.

Rebase + deleted some unused code + tweak to the signaling logic. Posted to the mailing list just now https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-September/020937.html

This is mentioned in a few other places, but Rule 3 pinning via additional ancestor is still not resolved with the multi-parent-1-child case. Quick diagram to illustrate - this was...

Looks like rebased for #25667. Pinging @sipa @dergoegge @vasild @ariard @mzumsande for re-ACK

> The newly added test p2p_sendtxrcncl.py failed just on "Win64 native" sob Job: https://cirrus-ci.com/task/6088863331385344 Reran and it turned green. Maybe coincidental timeout?

cc @theStack for re-ACK?

This PR is open for review but leaving as draft, attempting to shave off the beginning commits in #26646 to make this smaller and v3-focused.