From 3d1156abcf6c6a02b9ef805d3d8abb4971a38f12 Mon Sep 17 00:00:00 2001
From: Jason Del Ponte <961963+jasdel@users.noreply.github.com>
Date: Mon, 28 Feb 2022 15:25:17 -0800
Subject: [PATCH] config: add document to LowerCaseHeaderMaps v1 vs v2 behavior
 (#4297)

Adds small blurb to `Config.LowerCaseHeaderMaps` documenting the v1's opt-in behavior vs v2's default behavior. Related to #445
---
 aws/config.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/aws/config.go b/aws/config.go
index 79f18fb2ff..4818ea427e 100644
--- a/aws/config.go
+++ b/aws/config.go
@@ -170,6 +170,9 @@ type Config struct {
 	//
 	// For example S3's X-Amz-Meta prefixed header will be unmarshaled to lower case
 	// Metadata member's map keys. The value of the header in the map is unaffected.
+	//
+	// The AWS SDK for Go v2, uses lower case header maps by default. The v1
+	// SDK provides this opt-in for this option, for backwards compatibility.
 	LowerCaseHeaderMaps *bool
 
 	// Set this to `true` to disable the EC2Metadata client from overriding the