HHVM 4.131 is released! HHVM 4.126–4.130 remain supported, as do the 4.102 and 4.128 LTS releases.


  • Breakpoints in Visual Studio Code no longer require the legacy debugger to be enabled.
  • Added AsyncMysqlConnectionPool::connectAndQuery().
  • Fixed ReflectionTypeConstant::getTypeStructure() incorrectly referring to the declaring class for inherited type constants, instead of the current class. This could lead to bugs if the type constant referred to this.
  • Fixed a memory leak in Str\replace functions introduced in 4.130