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-rw-r--r--doc/policy/mempool-replacements.md12
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diff --git a/doc/policy/mempool-replacements.md b/doc/policy/mempool-replacements.md
index 3e844f8d7b..fea0143757 100644
--- a/doc/policy/mempool-replacements.md
+++ b/doc/policy/mempool-replacements.md
@@ -15,6 +15,8 @@ other consensus and policy rules, each of the following conditions are met:
*Rationale*: See [BIP125
explanation](https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki#motivation).
+ The Bitcoin Core implementation offers a node setting (`mempoolfullrbf`) to allow transaction
+ replacement without enforcement of the opt-in signaling rule.
2. The replacement transaction only include an unconfirmed input if that input was included in
one of the directly conflicting transactions. An unconfirmed input spends an output from a
@@ -51,6 +53,13 @@ other consensus and policy rules, each of the following conditions are met:
significant portions of the node's mempool using replacements with multiple directly conflicting
transactions, each with large descendant sets.
+6. The replacement transaction's feerate is greater than the feerates of all directly conflicting
+ transactions.
+
+ *Rationale*: This rule was originally intended to ensure that the replacement transaction is
+ preferable for block-inclusion, compared to what would be removed from the mempool. This rule
+ predates ancestor feerate-based transaction selection.
+
This set of rules is similar but distinct from BIP125.
## History
@@ -67,3 +76,6 @@ This set of rules is similar but distinct from BIP125.
* RBF enabled by default in the wallet GUI as of **v0.18.1** ([PR
#11605](https://github.com/bitcoin/bitcoin/pull/11605)).
+
+* Full replace-by-fee enabled as a configurable mempool policy as of **v24.0** ([PR
+ #25353](https://github.com/bitcoin/bitcoin/pull/25353)).