On the official PHP.net site they've announced the release of PHP 7.1.0, the latest major release of the PHP 7 series:

The PHP development team announces the immediate availability of PHP 7.1.0. This release is the first point release in the 7.x series.

PHP 7.1.0 comes with numerous improvements and new features such as

• Nullable types
• Void return type
• Iterable pseudo-type
• Class constant visibility modifiers
• Square bracket syntax for list() and the ability to specify keys in list()
• Catching multiple exceptions types

There's several more changes in this release as well including security updates, bugfixes and a host of new features. As always, you can download the source packages for this latest release directly from a PHP.net mirror or get the Windows binaries from the PHP for Windows site. You can find the full changelog of the release here and a migration guide here.