PHP 7.4.0 Release Announcement
PHP 7.4.0 comes with numerous improvements and new features such as:
Typed Properties
Arrow Functions
Limited Return Type Covariance and Argument Type Contravariance
Unpacking Inside Arrays
Numeric Literal Separator
Weak References
Allow Exceptions from
- __toString()
- Opcache
- Preloading
- Several
- Deprecations
- Extensions
- Removed from the Core
For source downloads of PHP 7.4.0 please visit downloads page Windows binaries can be found on the PHP for Windows site.
( all above information is taken from php.net official page )