From 94729ce4e41a446f2c197772fc408adf89834140 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 7 May 2026 08:19:36 +0200
Subject: [PATCH] CURLOPT_HAPROXYPROTOCOL.md: only sent for newly setup
 connections

Closes #21517
---
 docs/libcurl/opts/CURLOPT_HAPROXYPROTOCOL.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/libcurl/opts/CURLOPT_HAPROXYPROTOCOL.md b/docs/libcurl/opts/CURLOPT_HAPROXYPROTOCOL.md
index 77ef0e06f3..1cfb53de60 100644
--- a/docs/libcurl/opts/CURLOPT_HAPROXYPROTOCOL.md
+++ b/docs/libcurl/opts/CURLOPT_HAPROXYPROTOCOL.md
@@ -33,6 +33,10 @@ send this header.
 This option is primarily useful when sending test requests to a service that
 expects this header.
 
+Note that the HAProxy protocol message is only is sent over a freshly setup
+connection. A subsequent transfer that reuses a previous connection does not
+send it again.
+
 Most applications do not need this option.
 
 # DEFAULT