The Drupal instrumentation now guards against rare conditions that led to PHP processes exiting with an allocation error. Additionally, the allocation routines now log stack traces when they fail.
When initially building the agent, a parallel build is no longer required to avoid an error about a missing header file (v1.pb-c.h).
SOAP transactions when using Magento 2.3.2+ are now properly named instead of being attributed to Magento's internal SOAP interceptor. Thanks @steven-hoffman-jomashop for the issue report and fix suggestion!
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 8.5.0.