Release 4.2.5 2019/07/15: Free Properly fix PHP 5.3 support; tested on CentOS 6. Does not support any UI or Premium features. Fix potential issue with WP_FAIL2BAN_BLOCK_USER_ENUMERATION if calling REST API or XMLRPC from admin area.
Release 4.2.4 2019/06/23: Free Add filter for login failed message. Fix logging spam comments from admin area. Fix Settings link from Plugins page. Update Freemius library.
Release 4.2.3 2019/05/22: Free Workaround for some versions of PHP 7.x that would cause define()s to be ignored. Add config note to settings tabs. Fix documentation links.