H2O 1.4.0 發布， HTTP 服務器

H2O 1.4.0 發布，相比之前的1.3.1版本有一些更新和 bug 修復，主要如下：

• Support for the PROXY protocol

• Support for cache-based and ticket-based TLS session resumption using Memcached (and forward secrecy)

 features:

• cache-based session resumption using memcached

• automatic rollover of master secret used for ticket-based resumption

• synchronization of master secrets that rollover, using memcached

• directive to configure the cipher used for encrypting tickets (with default being aes-256-cbc)

更多內容請查看：發行說明。

H2O 是一個經過優化的 HTTP 服務器實現，可用于一個標準的獨立服務器或者是一個 HTTP 服務器開發包。

支持的協議有：

• HTTP/1.0 (http and https)

• HTTP/1.1 (http and https)

• Websocket (RFC6455, both ws and wss)

• HTTP/2.0 (draft 14, via Upgrade, NPN, ALPN)

依賴包：

• OpenSSL (mandatory)

• libyaml (optional; required when building the server)

• libuv 1.0.0 (optional; required when using h2o as a library)

• wslay (optional; required if you need support for websocket)

實際測試發現 H2O 的性能是 Nginx 的兩倍左右 (ab -c 500 -n 100000 -k)。