Bitcoin · CoinDesk
For years, users looking to speed up their transactions on the Bitcoin blockchain relied on a handy optional feature
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For years, users looking to speed up their transactions on the Bitcoin blockchain relied on a handy optional feature that says, "The reporter might want to replace this transaction with a higher fee.
Key facts
- In May, combined exchange volumes fell 3.45% to $4.41T; the lowest since September 2024
- There is an intention in the bitcoin core wallet to remove the BIP 125 RBF signaling in transactions for which a PR is raised
- Let's first take a look at the so-called replace-by-fee (RBF) signaling, then discuss the developers' proposals
- Imagine sending a paper check through the mail, but the postal system is stretched and congested
Summary
Bitcoin developers want to remove explicit replace-by-fee (RBF) signaling from wallet software because full-RBF is now standard policy, making the old opt-in flag redundant. Keeping the legacy RBF signal creates unnecessary on-chain fingerprints that can reveal which wallet software was used. Developers are coordinating on a common default input sequence number, likely the already dominant MAX-2, so that transactions from different wallets look similar and are harder to track. But what started as a helpful tool has become redundant and a small privacy issue, prompting some developers to discuss possible ways to do away with it.