Bitcoin Core removes option to disable full RBF
Bitcoin Core removes the mempoolfullrbf configuration option that allowed users to revert to opt-in RBF.
On November 15, 2024, Bitcoin Core removes option to disable full RBF. Bitcoin Core removes the mempoolfullrbf configuration option that allowed users to revert to opt-in RBF.
After full RBF became broadly used and was enabled by default, Bitcoin Core removed the configuration option that returned nodes to opt-in-only replacement policy. The change was relay policy, not consensus.
The event is historically useful because Bitcoin's development history is built not only from activated consensus changes but also from standards, implementation milestones, security maintenance and proposals that shape later engineering choices.