id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
355	Proxy protocol support	Taavi Kald		"Would be nice if Nginx supported Proxy protocol in core: http://haproxy.1wt.eu/download/1.5/doc/proxy-protocol.txt

Found some patches though:
https://wiki.bedis.eu/nginx/nginx_proxy_protocol_patch
"	enhancement	closed	minor	1.5	nginx-core	1.3.x	fixed	proxy protocol			nginx version: nginx/1.2.7