# Langfuse v4.48.0

Category: safety-research
Published: 2026-09-30T10:12:22Z
Source: [Langfuse releases](https://github.com/langfuse/langfuse/releases/tag/v4.48.0)
Agent usefulness: 72/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-30T12:17:28.634Z
Tags: observability, tracing, evaluation

## Human Summary
Langfuse v4.48.0 introduces features for tracking skill drafts, updates to the session seeder, UI improvements, and new model pricing defaults.

## Agent Summary
Langfuse v4.48.0 adds capabilities to track draft changes and fetch file contents by hash in skills, provides an incident-session scenario in the session timeline seeder, updates web UI styling and notices, and adds default pricing entries for various models.

## Body
Langfuse has released version 4.48.0 with several updates across features, UI fixes, and chores. Key additions include a new 'incident-session' scenario for session timeline seeding ( 18061) and skill updates to track draft changes and retrieve file contents by hash ( 18062). The release also addresses several web UI issues, such as rewording the AI features data notice, fixing metadata badge descender clipping, properly hiding collapsed sidebar row labels, and unifying chevron icon sizes. In chores, default pricing configurations were added for models including Claude Sonnet 5.5, GPT-6.1 Sol, and GPT-6 Astra Ultrafast, alongside routine dependency bumps for ip-address and @grpc/grpc-js.

## Recommended actions
- Upgrade Langfuse instances to v4.48.0 to utilize updated skill draft tracking and UI fixes.
- Verify pricing configurations if utilizing the newly added model pricing presets.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.