HHVM 4.147 is released! This release marks the end of support of 4.139; 4.140, and 4.143 - 4.146 remain supported, as do the 4.102 and 4.128 LTS releases. 4.141 and 4.142 were cancelled due to the holiday season.
- Add coeffects to
- Support hover and go-to-definition on type parameters in an IDE.
- Support hover and go-to-definition on the
abstractkeyword in an IDE.
- The result of
HH\FIXME\UNSAFE_CASTis now considered
readonlyif the input is
- Always raise an error when inheriting members that differ only by case (previously the error would be raised only if
case_sensitive_inheritanceoption is enabled)