HHVM 3.8.0 發布，這是第一個在 HHVM lockdown 方面做性能提升的版本，此外還包含以下更新：
the proxygen http server (hhvm -m server -v Server.Type=proxygen)
stream_socket_enable_crypto() for client sockets
Automatic typechecking of Hack code. Previously, the hh_client static analysis tool would have to be separately run. Now, results from hh_client will be included in the runtime errors too. (Running it manually is still the recommended way for fast error feedback though!) The hhvm.hack.lang.auto_typecheck INI option controls this behavior.
更多詳細內容請查看這裡。
該版本下載地址請點這裡。
HipHop VM(HHVM)是Facebook推出的用來執行PHP代碼的虛擬機，它是一個PHP的JIT（Just-In- Time）編譯器，同時具有產生快速代碼和即時編譯的優點。