Full RBF
Protocol● Common
A mempool policy accepting replacements for any unconfirmed transaction regardless of BIP-125 signaling. Enabled by default in Bitcoin Core 28.0+. Previously, only transactions signaling RBF could be replaced.
Technical Notes
BIP-125: nSequence < 0xfffffffe signals opt-in RBF. Full RBF: -mempoolfullrbf=1 ignores signal. Controversy: breaks zero-conf assumptions. Rationale: miners incentivized to accept higher fees regardless of policy.
Metadata
Visibility: Public
Created:1/3/2026by System