HAProxy 1.6.0 发布，该版本主要更新如下： esources management : - dynamic buffer allocation - automatic maxconn setting - peers disable - peers process binding Configuration management : - config support for quotes - config environment variables Notification / reporting : - stats clean encoding in CSV - mailers - log-tag - log-format tags %H* Server state management : - state keeping across reload - multiple redispatch - dns resolution - CLI server address change - external checker - tcp-check comment High-level processing / scripting : - lua - variables - gpt0 - 64-bit integer in samples - more flexible sample management - declared captures - http-response redirect - http-request capture - {url,body}_param supports any param - device identification - option http-buffer-request - arithmetic fetches and convs - new fetch/conv (query, json, field, ...) - http-request set-{path,query,method,uri} - table lookups converters - header manipulation on status code 101 Client-facing SSL/TLS : - ECDSA client support detection - SSL cert forgery on the fly - TLS cert transparency (SCTL) - TLS ticket key load from file/CLI - custom SSL DH params Server-facing SSL/TLS : - specify TLS sni to server - no-ssl-reuse Performance : - HTTP server connection sharing - use pcre-study by default - stateless gzip/deflate compression - compression of 201-203 - pattern cache Reliability : - peers v2 - TCP_USER_TIMEOUT Integration : - linux namespaces - http-request set-src - HTTP/0.9 disabled by default - RTSP basic compatibility - option http-ignore-probes - max syslog line length Documentation : - added more documentation (intro, management, lua) - removed obsolete and confusing docs - removed lots of obsolete config files详情请查看：whats-new-in-haproxy-1-6/ 相关下载：
HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代理，支持虚拟主机， 它是免费、快速并且可靠的一种解决方案。HAProxy特别适用于那些负载特大的web站点， 这些站点通常又需要会话保持或七层处理。HAProxy运行在当前的硬件上，完全可以支持数以万计的并发连接。并且它的运行模式使得它可以很简单安全的整 合进您当前的架构中， 同时可以保护你的web服务器不被暴露到网络上。 下图是HAProxy的架构：
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