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Last9

Changelog

New updates and improvements to Last9

Feature Improvements Fixes

Introducing Discover Exceptions

Discover Exceptions gives you complete visibility into errors occurring across your applications. Filter exceptions by type, service, operation, severity, and HTTP or gRPC status codes to quickly identify patterns and prioritize fixes.

Key benefits:

  • Filter exceptions by type (HttpError, TypeError, SyntaxError, etc.) and severity level
  • View occurrence trends over time with timeline graphs
  • Access detailed context including user information, session IDs, and custom attributes
  • Navigate directly to related traces and logs for faster debugging
  • Track exceptions by service and operation to identify problem areas

Each exception view shows you exactly when errors occurred, which users were affected, and provides direct access to the traces and logs you need to understand and resolve issues.

Improvements

  • RUM: Web Vitals (LCP, FID, CLS, FCP, TTFB) now emit as independent trace spans with standardized naming ("Web Vital - [Metric]"), more accurate browser and device detection using the Bowser library prevents view count inflation, and improved session rollover handling ensures accurate view tracking across long-running sessions
  • Control Plane > Streaming Aggregation: Adding new rules are now available to all users with Editor permissions, removing the previous Admin-only restriction

Fixes

  • Browser SDK was not flushing all batched spans when pages closed or became hidden, causing potential data loss