General availability: New Monitoring and Logging Updates in Azure Firewall

Structured Logs (general availability): New logging format that provides a more detailed view of firewall events. Structured Logs provide the following benefits: they are easier to work with data in log queries and help discover schemas; they improves performance and reduce latency; they allow ability to grant Azure RBAC rights on specific tables 

Latency Probe (general availability): The Latency Probe metric is designed to measure the overall latency of Azure Firewall and provide insight into the health of the service.

Learn more in the following articles:

Structured Logs – Microsoft Learn

Latency Probe metric – Microsoft Learn