HHVM 4.12 is released! This release marks the end of support for the 4.6.x series.

Highlights

• Abstract methods are now able to be overridden by other abstract methods.
• Improved error messages for inappropriate usage of the async keyword, e.g. abstract methods and interfaces.
• Methods with the same name as the class are no longer parsed as constructors.
• XBox tasks now execute <<__EntryPoint>> functions.
• Fixed assertion failure when building repo-authoritative bytecode repositories with HHVM built against libc++ instead of libstdc++ (e.g. MacOS).
• Autocomplete docblocks are now sent to IDEs as markdown.
• If using CLI server mode, PSP is now ran before exit.
• Fixed a segmentation fault when using vsdebug as a REPL.
• Improved response time when IDEs request docblocks.

Breaking Changes

• hh_client --retries is now a synonym of --timeout
• The optional &$output_headers argument has been removed from SoapClient::__soapcall, as optional inout parameters are not supported.