langfuse

v3.212.0 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 16d Tracing

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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 Chores, analytics, and dashboards across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Adds widget menus, copy-paste, and versioned JSON import/export to dashboards Adds widget menus, copy-paste, and versioned JSON import/export to dashboards Source: llm_adapter@2026-07-15 Confidence: high	—
Feature	Medium	Instruments filter/search-bar usage with PostHog in analytics Instruments filter/search-bar usage with PostHog in analytics Source: llm_adapter@2026-07-15 Confidence: high	—
Feature	Medium	Instruments peek, graph, timeline, and tree view usage in analytics Instruments peek, graph, timeline, and tree view usage in analytics Source: llm_adapter@2026-07-15 Confidence: high	—
Dependency	Low	Bumps protobufjs dependency to version 7.6.5 Bumps protobufjs dependency to version 7.6.5 Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix
Bugfix	Medium	Uses LANGFUSE_AWS_BEDROCK_SMALL_MODEL for AI features in search-bar Uses LANGFUSE_AWS_BEDROCK_SMALL_MODEL for AI features in search-bar Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Medium	Delays feedback controls until turn ends in in-app agent Delays feedback controls until turn ends in in-app agent Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Medium	Improves reaction to denied tool calls in agent Improves reaction to denied tool calls in agent Source: llm_adapter@2026-07-15 Confidence: high	—
Refactor
Refactor	Low	Enables knip dep checking and removes unused dependencies in web module Enables knip dep checking and removes unused dependencies in web module Source: llm_adapter@2026-07-15 Confidence: high	—
Refactor	Low	Enables "silent: passed-only" by default for vitest tests Enables "silent: passed-only" by default for vitest tests Source: llm_adapter@2026-07-15 Confidence: high	—
Refactor	Low	Improves 'thinking' chunks instrumentation in in-app agent Improves 'thinking' chunks instrumentation in in-app agent Source: llm_adapter@2026-07-15 Confidence: high	—

Full changelog

What's Changed

Features

feat(dashboards): widget menus, copy-paste, and versioned JSON import/export (LFE-10807) by @nkabardin in https://github.com/langfuse/langfuse/pull/14965
feat(analytics): instrument filter/search-bar usage with PostHog (LFE-10781) by @nkabardin in https://github.com/langfuse/langfuse/pull/14929
feat(analytics): instrument peek / graph / timeline / tree view usage (LFE-10786) by @nkabardin in https://github.com/langfuse/langfuse/pull/14947

Fixes

fix(search-bar): Use LANGFUSE_AWS_BEDROCK_SMALL_MODEL for AI features by @bezbac in https://github.com/langfuse/langfuse/pull/14968
fix(in-app-agent): delay feedback controls until turn ends by @LysanderKie in https://github.com/langfuse/langfuse/pull/14961
fix(agent): Improve reaction to denied tool calls by @bezbac in https://github.com/langfuse/langfuse/pull/14967

Chores

chore(deps): bump protobufjs to 7.6.5 by @nimarb in https://github.com/langfuse/langfuse/pull/14966
chore(web): Enable knip dep checking & remove unused deps by @bezbac in https://github.com/langfuse/langfuse/pull/14960
chore(vitest): Enable "silent: passed-only" by default by @bezbac in https://github.com/langfuse/langfuse/pull/14970
chore(in-app agent): Improve 'thinking' chunks instrumentation by @LysanderKie in https://github.com/langfuse/langfuse/pull/14971

Full Changelog: https://github.com/langfuse/langfuse/compare/v3.211.0...v3.212.0

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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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