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langfuse

v3.185.0 Feature

This release adds 5 notable features for engineering teams evaluating rollout.

Published 1mo Tracing
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

analytics autogen evaluation langchain large-language-models llama-index
+12 more
llm llm-evaluation llm-observability llmops monitoring observability openai playground prompt-engineering prompt-management self-hosted ycombinator

Summary

AI summary

Updates span web UI, seeder CLI, agent feedback, monitors limits, batch-export handling, and ClickHouse compatibility detection.

Changes in this release

Feature Low

Adds experimental feature modal for web UI.

Adds experimental feature modal for web UI.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Adds agent‑first seed CLI with doctor, complex trees/sessions/bulk, v4 mirroring.

Adds agent‑first seed CLI with doctor, complex trees/sessions/bulk, v4 mirroring.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Detects ClickHouse versions on start and sets compatibility flags automatically.

Detects ClickHouse versions on start and sets compatibility flags automatically.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Adds conversation starters to agent feature.

Adds conversation starters to agent feature.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Buckets live preview by evaluation window in monitors.

Buckets live preview by evaluation window in monitors.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Retires feature flag for monitors and raises organization limit to 20.

Retires feature flag for monitors and raises organization limit to 20.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Updates support severity dropdown options.

Updates support severity dropdown options.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Changes icon for LLM‑as‑a‑Judge evaluator setup in evals.

Changes icon for LLM‑as‑a‑Judge evaluator setup in evals.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Removes beta label from corrections feature.

Removes beta label from corrections feature.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Feature Low

Reads sessions from events table for v4 users in batch-export.

Reads sessions from events table for v4 users in batch-export.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Feature Low

Gates enriched blob export availability on V4 environment variables for self‑hosted deployments.

Gates enriched blob export availability on V4 environment variables for self‑hosted deployments.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Feature Low

Improves performance of checkboxes in traces/observations and adds shift‑selection support.

Improves performance of checkboxes in traces/observations and adds shift‑selection support.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Medium

Drops media link foreign keys in media module.

Drops media link foreign keys in media module.

Source: llm_adapter@2026-06-12

Confidence: high

 —
Bugfix Low

Throttles Mixpanel integration exports in worker component.

Throttles Mixpanel integration exports in worker component.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Low

Resolves app theme for CodeBlock syntax highlighting in dark mode UI.

Resolves app theme for CodeBlock syntax highlighting in dark mode UI.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Low

Gates sessions events session_id pushdown on 'any of' operator logic.

Gates sessions events session_id pushdown on 'any of' operator logic.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Low

Snapshots v4 events‑table flag for session batch actions workflow.

Snapshots v4 events‑table flag for session batch actions workflow.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Low

Aligns agentic seed summaries in seeder tool.

Aligns agentic seed summaries in seeder tool.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Low

Reads scores trace metadata from events table for v4 users in batch-export.

Reads scores trace metadata from events table for v4 users in batch-export.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Bugfix Low

Refines API error logging and prompt validation handling.

Refines API error logging and prompt validation handling.

Source: granite4.1:30b@2026-06-12-audit

Confidence: low

 —
Full changelog

Features

  • feat(web): New experimental feature modal by @bezbac in https://github.com/langfuse/langfuse/pull/14152
  • feat(seeder): agent-first seed CLI — doctor, complex trees/sessions/bulk, v4 mirroring by @nkabardin in https://github.com/langfuse/langfuse/pull/14104
  • feat: detect clickhouse versions on start and set compat flags automagically. by @sumerman in https://github.com/langfuse/langfuse/pull/14187
  • feat(agent): Add conversation starters by @bezbac in https://github.com/langfuse/langfuse/pull/14188
  • feat(monitors): bucket live preview by evaluation window by @marksalpeter in https://github.com/langfuse/langfuse/pull/14189
  • feat(batch-export): read sessions from events table for v4 users by @niklassemmler in https://github.com/langfuse/langfuse/pull/14040
  • feat(monitors): retire feature flag, raise org limit to 20 by @marksalpeter in https://github.com/langfuse/langfuse/pull/14199
  • feat(support): update support severity drop down by @jannikmaierhoefer in https://github.com/langfuse/langfuse/pull/14190
  • feat(evals): change icon for llm-as-a-judge evaluator set up by @marliessophie in https://github.com/langfuse/langfuse/pull/14207
  • feat(corrections): remove beta label by @marliessophie in https://github.com/langfuse/langfuse/pull/14210
  • feat(blob-exporter): gate isEnrichedBlobExportAvailable on V4 env vars for self-hosted by @niklassemmler in https://github.com/langfuse/langfuse/pull/14098
  • feat(observations): checkboxes in traces/observations are more performant and support shift-selection by @nkabardin in https://github.com/langfuse/langfuse/pull/14021

Fixes

  • fix(media): drop media link foreign keys by @hassiebp in https://github.com/langfuse/langfuse/pull/14170
  • fix(worker): throttle Mixpanel integration exports by @nyarram in https://github.com/langfuse/langfuse/pull/13958
  • fix(ui): resolve app theme in CodeBlock for dark mode syntax highlighting by @jannikmaierhoefer in https://github.com/langfuse/langfuse/pull/14200
  • fix: gate sessions events session_id pushdown on 'any of' operator by @niklassemmler in https://github.com/langfuse/langfuse/pull/14202
  • fix(batch-actions): snapshot v4 events-table flag for session batch actions by @niklassemmler in https://github.com/langfuse/langfuse/pull/14201
  • fix(seeder): align agentic seed summaries by @nkabardin in https://github.com/langfuse/langfuse/pull/14209
  • fix(batch-export): read scores trace metadata from events table for v4 users by @niklassemmler in https://github.com/langfuse/langfuse/pull/14203
  • fix: refine API error logging and prompt validation handling by @sumerman in https://github.com/langfuse/langfuse/pull/14215

Chores

  • refactor(public-api): redesign repository interfaces to accept pre-built FilterList by @niklassemmler in https://github.com/langfuse/langfuse/pull/14182
  • chore(agent): Add feedback link to feature preview modal by @bezbac in https://github.com/langfuse/langfuse/pull/14197
  • chore: decrease default LANGFUSE_MIXPANEL_FLUSH_DELAY_MS by @sumerman in https://github.com/langfuse/langfuse/pull/14198
  • docs(agents): warn against is_deleted filter on ClickHouse reads by @niklassemmler in https://github.com/langfuse/langfuse/pull/13977
  • docs(agents): update weekly production review skill by @maxdeichmann in https://github.com/langfuse/langfuse/pull/14208
  • ci(deps): bump the github-actions group with 4 updates by @dependabot[bot] in https://github.com/langfuse/langfuse/pull/14212

New Contributors

  • @nyarram made their first contribution in https://github.com/langfuse/langfuse/pull/13958

Full Changelog: https://github.com/langfuse/langfuse/compare/v3.184.1...v3.185.0

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About langfuse

🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. YC W23

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Beta — feedback welcome: [email protected]