You updated PHP to a supported release version, but the PHP agent stopped working or reporting.
If you update your PHP installation to another major release version (for example, 5.3 to 5.4), you must reinstall the PHP agent. Updating PHP to minor release versions does not require reinstalling the agent.
If you are using a package manager (for example,
apt-get upgrade) to update PHP without specifying packages, you may also be upgrading the New Relic PHP agent in the process. To ensure the upgrade is applied successfully: