HHVM 4.104 is released! This release marks the end of support for 4.56 (LTS) and 4.98; HHVM 4.99–4.103 remain supported, as does the 4.80 LTS release.

Note that HHVM 4.104 is not a long-term support (LTS) release as originally scheduled. Instead, HHVM 4.102 was promoted to a LTS release.


  • Various IDE integration improvements (autocomplete, go-to-definition, tooltips).

Breaking Changes

  • We no longer build packages for MacOS 10.14 (Mojave).