diff --git a/README.mediawiki b/README.mediawiki
index e4ca17bf..ca65833d 100644
--- a/README.mediawiki
+++ b/README.mediawiki
@@ -1436,13 +1436,13 @@ users (see also: [https://en.bitcoin.it/wiki/Economic_majority economic majority
 | Gregory Sanders
 | Informational
 | Draft
-|-
+|- style="background-color: #ffffcf"
 | [[bip-0434.md|434]]
 | Peer Services
 | Peer Feature Negotiation
 | Anthony Towns
 | Specification
-| Draft
+| Complete
 |-
 | [[bip-0440.mediawiki|440]]
 | Consensus (soft fork)
diff --git a/bip-0434.md b/bip-0434.md
index 3f3b4f65..dbb2b147 100644
--- a/bip-0434.md
+++ b/bip-0434.md
@@ -3,13 +3,13 @@
   Layer: Peer Services
   Title: Peer Feature Negotiation
   Authors: Anthony Towns <aj@erisian.com.au>
-  Status: Draft
+  Status: Complete
   Type: Specification
   Assigned: 2026-01-14
   License: BSD-2-Clause
   Discussion: 2025-12-19: https://gnusha.org/pi/bitcoindev/aUUXLgEUCgGb122o@erisian.com.au/T/#u
               2020-08-21: https://gnusha.org/pi/bitcoindev/20200821023647.7eat4goqqrtaqnna@erisian.com.au/
-  Version: 0.1.0
+  Version: 1.0.0
 ```
 
 ## Abstract
@@ -286,6 +286,11 @@ that prefer to fully validate each message received:
  * Sending unknown messages after `verack` is explicitly forbidden,
    in so far as that is possible.
 
+## Reference implementation
+
+This feature was implemented in Bitcoin Core [PR#35221][PR#35221],
+which may be used as a reference implementation.
+
 ## Backward compatibility
 
 Clients specifying a version number prior to `70017` remain fully
@@ -327,6 +332,7 @@ advertised even to peers that do not support the features in question.
 [PR#20564]: https://github.com/bitcoin/bitcoin/pull/20564
 [PR#9720]: https://github.com/bitcoin/bitcoin/pull/9720
 [PR#19723]: https://github.com/bitcoin/bitcoin/pull/19723
+[PR#35221]: https://github.com/bitcoin/bitcoin/pull/35221
 [btcd#1812]: https://github.com/btcsuite/btcd/pull/1812
 [btcd#1661]: https://github.com/btcsuite/btcd/issues/1661
 [permless-extensible]: https://github.com/bitcoin/bitcoin/pull/20564#issuecomment-738456560
diff --git a/scripts/buildtable.pl b/scripts/buildtable.pl
index aa1329fd..3f5ba6a5 100755
--- a/scripts/buildtable.pl
+++ b/scripts/buildtable.pl
@@ -136,7 +136,7 @@ while (++$bipnum <= $topbip) {
 		}
 	}
 	my %found;
-	my ($title, $authors, $status, $type, $layer);
+	my ($title, $authors, $status, $version, $type, $layer);
 	my ($field, $val, @field_order, $continuation);
 	while (<$F>) {
 		last if ($is_markdown && m[^```$]);
@@ -208,6 +208,7 @@ while (++$bipnum <= $topbip) {
 			$val =~ m/^(\S[^<@>]*\S) \<[^@>]*\@[\w.]+\.\w+\>$/ or die "Malformed $field line in $fn";
 		} elsif (exists $VersionField{$field}) {
 			$val =~ m/^(\d+\.\d+\.\d+)$/ or die "Malformed $field line in $fn";
+			$version = $val;
 		} elsif (not exists $MiscField{$field}) {
 			die "Unknown field $field in $fn";
 		}
@@ -228,6 +229,11 @@ while (++$bipnum <= $topbip) {
 	if (defined $ValidStatus{$status}) {
 		print " style=\"" . $ValidStatus{$status} . "\"";
 	}
+	if (defined $version and $version =~ m/^0+[.]/) {
+		if ($status eq "Complete" or $status eq "Deployed") {
+			die "$fn marked as $status despite pre-1.0 version ($version)";
+		}
+	}
 	print "\n";
 	print "| [[${fn}|${bipnum}]]\n";
 	if ($include_layer) {