modify release-notes.md and bips.md

doc/bips.md

@@ -20,3 +20,4 @@ BIPs that are implemented by Bitcoin Core (up-to-date up to **v0.12.0**):
 * [`BIP 111`](https://github.com/bitcoin/bips/blob/master/bip-0111.mediawiki): `NODE_BLOOM` service bit added, but only enforced for peer versions `>=70011` as of **v0.12.0** ([PR #6579](https://github.com/bitcoin/bitcoin/pull/6579)).
 * [`BIP 125`](https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki): Opt-in full replace-by-fee signaling honoured in mempool and mining as of **v0.12.0** ([PR 6871](https://github.com/bitcoin/bitcoin/pull/6871)).
 * [`BIP 130`](https://github.com/bitcoin/bips/blob/master/bip-0130.mediawiki): direct headers announcement is negotiated with peer versions `>=70012` as of **v0.12.0** ([PR 6494](https://github.com/bitcoin/bitcoin/pull/6494)).
+* [`BIP 133`](https://github.com/bitcoin/bips/blob/master/bip-0133.mediawiki): feefilter messages are respected and sent for peer versions `>=70013` as of **v0.13.0** ([PR 7542](https://github.com/bitcoin/bitcoin/pull/7542)).

doc/release-notes.md

@@ -160,6 +160,15 @@ git merge commit are mentioned.
 
 The p2p alert system has been removed in #7692 and the 'alert' message is no longer supported.
 
+
+Fee filtering of invs (BIP 133)
+------------------------------------
+
+The optional new p2p message "feefilter" is implemented and the protocol
+version is bumped to 70013. Upon receiving a feefilter message from a peer,
+a node will not send invs for any transactions which do not meet the filter
+feerate. [BIP 133](https://github.com/bitcoin/bips/blob/master/bip-0133.mediawiki)
+
 ### Validation
 - #7821 `4226aac` init: allow shutdown during 'Activating best chain...' (laanwj)
 - #7835 `46898e7` Version 2 transactions remain non-standard until CSV activates (sdaftuar)