How Does “Replace-by-Fee” (RBF) Impact a Miner’s Transaction Selection Process?

Replace-by-Fee (RBF) is a feature that allows a user to replace an unconfirmed transaction in the mempool with a new transaction that pays a higher fee. RBF impacts a miner's selection process by allowing them to prioritize the higher-fee replacement transaction over the original one.

This mechanism increases fee revenue for miners and provides users with a way to speed up a stuck transaction by increasing the fee, especially during periods of high congestion.

How Do Replace-by-Fee (RBF) Mechanisms Help Users on a Congested Network?
What Is the Replace-by-Fee (RBF) Protocol and How Is It Activated?
How Do Transaction Fees Influence the Ordering of Transactions in a Block?
How Does a Transaction’s “Replace-by-Fee” (RBF) Feature Attempt to Reduce Latency?
How Can a User Replace a Zero-Fee Transaction with a Higher-Fee One?
How Do Transaction Fees Influence Miner Block Selection?
What Is a “Mempool” and How Does RBF Interact with It?
Why Might a Miner Prioritize a Zero-Fee Transaction over a Low-Fee One?

Glossar