langfuse

v3.220.0 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 9d Tracing

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✓ No known CVEs patched

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✓ 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

Affected surfaces

auth

Summary

AI summary

Updates agent, fix, and Chores across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature	Low	Move main assistant entrypoint from side-nav to top-nav Move main assistant entrypoint from side-nav to top-nav Source: llm_adapter@2026-07-17 Confidence: high	—
Bugfix
Bugfix	Medium	Make data retention cleaner more robust against large backlogs Make data retention cleaner more robust against large backlogs Source: llm_adapter@2026-07-17 Confidence: high	—
Bugfix	Medium	Resolve comment filters for every event stream Resolve comment filters for every event stream Source: llm_adapter@2026-07-17 Confidence: high	—
Bugfix	Medium	Isolate linked generation filters in prompts Isolate linked generation filters in prompts Source: llm_adapter@2026-07-17 Confidence: high	—
Bugfix	Medium	Keep JSON-viewer meta-root row count in sync after collapse (LANGFUSE-456) Keep JSON-viewer meta-root row count in sync after collapse (LANGFUSE-456) Source: llm_adapter@2026-07-17 Confidence: high	—
Bugfix	Medium	Validate auth callbacks before passing them to nextauth Validate auth callbacks before passing them to nextauth Source: llm_adapter@2026-07-17 Confidence: low	—
Other	Low	Setup CI/CD for building MicroVM images Setup CI/CD for building MicroVM images Source: llm_adapter@2026-07-17 Confidence: low	—

Full changelog

What's Changed

Features

feat(agent): Move main assistant entrypoint to from side-nav to top-nav (#15160) (44a3fe1d4)

Fixes

fix: make data retention cleaner more robust against large backlogs (#15195) (06e0e46a0)
fix(events): resolve comment filters for every event stream (#14976) (86b29b250)
fix: validate auth callbacks before passing them to nextauth (#15191) (0e32ced9c)
fix(prompts): isolate linked generation filters (#15193) (8d47da12d)
fix(trace): keep JSON-viewer meta-root row count in sync after collapse (LANGFUSE-456) (#15174) (98853af1f)

Chores

chore(agent): Setup CI/CD for building MicroVM images (#15183) (470ca99b7)

Full Changelog: https://github.com/langfuse/langfuse/compare/v3.219.0...v3.220.0

View diff on GitHub

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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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