Hoping to avoid a repeat of last year where it took a couple of months to finally release an updated PHP 7.2 agent. PHP API 20170718 (PHP 7.2) Support Status
Here is the planned release schedule for PHP 7.3: https://wiki.php.net/todo/php73
The RC1 release is out now. I’m hoping that New Relic will be better prepared for the PHP 7.3 release this year.
P.S.: Datadog — a competing metrics service my company also uses — is about to launch PHP support. https://docs.datadoghq.com/tracing/setup/php/