On the main PHP.net site they've announced the release of the next versions in the PHP 5.6 and 7.1 series:

• PHP 5.6.36
• PHP 7.1.17

Both are bugfixes for their respective versions and are bugfix releases with several issues corrected in the Exif, LDAP, Phar and iconv handling. It is recommended that you upgrade to either of these releases to correct these issues.

As always, you can download these latest releases either from a mirror on the main downloads page or windows.php.net for the Windows executables.