From : http://www.oschina.net/news/53070/haproxy-1-5-0
经过 4 年的不懈努力,HAProxy 1.5.0 终于发布了!
相对于 1.4 版本来说,1.5 版本包括了许多新特性和性能改进:
支持 SNI/NPN/ALPN 和 OCSP stapling 的原生 SSL;
支持 IPv6 和 UNIX sockets;
full HTTP keep-alive for better support of NTLM and improved efficiency in static farms;
HTTP/1.1 compression (deflate, gzip) to save bandwidth;
PROXY protocol versions 1 and 2 on both sides;
data sampling on everything in request or response, including payload;
ACLs can use any matching method with any input sample maps and dynamic ACLsupdatable from the CLI stick-tables support counters to track activity on any input samplecustom format for logs, unique-id, header rewriting, and redirects;
improved health checks (SSL, scripted TCP, check agent, ...)
much more scalable configuration supports hundreds of thousands of backends and certificates without sweating.