On the main PHP.net site today there's an announcement about the latest release in the PHP 7.1.x series: PHP 7.1.4.

The PHP development team announces the immediate availability of PHP 7.1.14. This is a bugfix release. Several bugs were fixed in this release.

All PHP 7.1 users are encouraged to upgrade to this version.

Fixes in this latest release include changes to FastCGI handling, IMAP functionality, RecursiveArrayIterator in the SPL and a connection fix for PostgreSQL. You can see the full list of changes and their related bugs in the full Changelog. This version is available for download form the usual locations: the main downloads page for the source packages and windows.php.net for the Windows binaries.