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Changelog

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September 17, 2025

Span Logs Support

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View logs directly associated with your spans in the trace details view. This powerful correlation feature helps you quickly understand what happened during a span's execution by showing relevant log entries alongside your trace data.

When viewing a span in trace details v2, you can now access a "Logs" tab that displays:

  • All logs emitted during the span's execution timeframe
  • Contextual logs from before and after the span (for better understanding)
  • Visual highlighting of logs that are directly related to the selected span
  • An info icon explaining why certain log lines are highlighted

Click on any log entry to jump directly to the logs explorer with pre-applied filters for deeper investigation. The explorer automatically filters by both trace ID and span ID, making it easy to continue your debugging workflow.

This feature significantly reduces the time spent correlating traces and logs, giving you a complete picture of your application's behavior in one unified view.

🚨 Breaking Change (Community Edition)

Legacy alertmanager has been removed in favor of the inbuilt signoz alertmanager for improved reliability and feature support.

Export Logs with Custom Options

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Export your log data directly from the Logs Explorer with flexible options. Choose your preferred format (CSV or JSONL), select how many rows to export (10k, 30k, or 50k), and decide whether to include all columns or just the ones visible in your current view.

The export preserves your active filters and time range, making it easy to share specific insights with your team or perform offline analysis.

Trace Details V2 Improvements

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Smart Span Highlighting - When searching within a trace, matching spans are now visually highlighted while others are dimmed, making it instantly clear which spans match your search criteria. No more hunting through hundreds of spans to find what you're looking for.

Resizable Trace Sidebar - Customize your workspace by dragging to resize the trace details sidebar. Whether you need more room for the flamegraph or want to see detailed span attributes, you're in control of your layout.

Span Hover Cards - Get instant insights without clicking. Hover over any span to see key information like duration, service name, and status in a convenient popup card. Perfect for quickly scanning through traces without losing context.

These improvements work together to create a more fluid trace analysis workflow, helping you identify issues faster and understand system behavior at a glance.

Query Builder Enhancements

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New query capabilities make it easier to search and filter your data with improved text search and helpful validations.

hasToken Function Support - Search for specific tokens within text fields using the new hasToken function in Query Builder. Perfect for finding logs or traces containing specific keywords, error codes, or identifiers without complex regex patterns.

LIKE/ILIKE Operation Warnings - Get helpful warnings when using LIKE or ILIKE operators without wildcard characters (% or _). This prevents common mistakes where queries return no results because wildcards were forgotten, saving debugging time and ensuring your filters work as intended.

Bug Fixes

  • Improved trace query performance by scanning only required traces when filters are applied, significantly reducing response times for large datasets.
  • Corrected the matching spans count display in trace details v2 to show accurate results when searching within traces.
  • Resource filters now handle numeric values properly, preventing crashes when filtering traces with numeric resource attributes.
  • Dot metrics are now enabled by default, aligning with OpenTelemetry semantic conventions for consistent metric naming.
  • Logs explorer charts now display severity text correctly, resolving visual inconsistencies in log visualizations.
  • The alerts edit page no longer crashes, allowing smooth modification of alert configurations.

Maintenance

  • Query Builder v5 is now the default, bringing enhanced query capabilities and better performance across all data exploration workflows.
  • Resource attributes now support JSON columns, enabling more flexible data storage and complex querying patterns.
  • Metrics automatically populate with default zero queries, ensuring charts render properly even without data points.
  • Workloads listing now uses WebSocket Secure (WSS) connections for faster real-time updates and improved stability.
  • Query add ons remain visible after page refresh when values are present, preserving your working context.