PHP Extension 5.10.4 released

• New Feature: Automated instrumentation of PHP’s DNS functions (dns_*() and gethostby*()).
• New Feature: Automated instrumentation of email sending (including mail(), Symfony Mailer, and WoltLab Suite).
• Bugfix: Fix possible memory leak of error messages for PHP 7.x.
• Bugfix: Methods in an uninstrumented class that match the name of an instrumented global function are no longer incorrectly instrumented. As an example, Doctrine\DBAL\Connection::exec() was incorrectly considered to be a shell span. This fixes a regression in Tideways 5.10.0.