PHP agent v9.21.0.311

New Relic PHP agent v9.21.0

New features

• Distributed Tracing is now turned on by default.
• Distributed Tracing span reservoir size now has a default of 2000 (up from 1000) and a maximum of 10000.
• Cross Application Tracing is deprecated.

Bug fixes

• Fixed an install script bug where it detects Alpine Linux as Debian when phpize dependencies are installed.
• Improved stability of using Laravel framework when using opcache with PHP 8.1.

Support statement

• New Relic recommends that you upgrade the agent regularly and at a minimum every 3 months. As of this release, the oldest supported version is 9.7.0.