Adam Harvey @LGnome New Relic Today PHP 5.3: security fixes only (until July) PHP 5.4: old stable (about to enter security fix only mode) PHP 5.5: stable branch PHP 5.6: in beta ?? PHP release lifecycle Mar 2012 Jun 2013 Jul 2014 ? 2015 ? 2016 ? 2017 PHP 5.3 PHP 5.4 PHP 5.5 PHP 5.6 PHP ? Supported Security fixes only PHP 5.3 Current release: 5.3.28 End of life: July Possibly one more release due t