haproxy just released 3.0.12 including a few important fixes that we
certainly want in -stable, I don't think chery-picking is the way to
go. Therefore I'm looking for someone to test this on -stable since it
includes quite a lot of changes:

https://www.haproxy.org/download/3.0/src/CHANGELOG

Index: Makefile
===================================================================
RCS file: /cvs/ports/net/haproxy/Makefile,v
diff -u -p -r1.122.2.1 Makefile
--- Makefile	23 Jun 2025 12:25:45 -0000	1.122.2.1
+++ Makefile	3 Oct 2025 13:24:12 -0000
@@ -1,6 +1,6 @@
 COMMENT =	reliable, high performance TCP/HTTP load balancer
 
-DISTNAME =	haproxy-3.0.11
+DISTNAME =	haproxy-3.0.12
 CATEGORIES =	net www
 HOMEPAGE =	https://www.haproxy.org/
 MAINTAINER =	Lucas Gabriel Vuotto <lucas@sexy.is>
Index: distinfo
===================================================================
RCS file: /cvs/ports/net/haproxy/distinfo,v
diff -u -p -r1.81.2.1 distinfo
--- distinfo	23 Jun 2025 12:25:45 -0000	1.81.2.1
+++ distinfo	3 Oct 2025 13:24:12 -0000
@@ -1,2 +1,2 @@
-SHA256 (haproxy-3.0.11.tar.gz) = oTPi1VDF/ZqEm1x6sXu5Rbza0gnKFA1B9F6/MZQ654M=
-SIZE (haproxy-3.0.11.tar.gz) = 4738655
+SHA256 (haproxy-3.0.12.tar.gz) = zSut5Zp+LWHy1ivnxsTPwOKzqQQxAjcgyufEOEOwVws=
+SIZE (haproxy-3.0.12.tar.gz) = 4745984