Loop v2025.11.281349 - Beta Release#

Release Date: November 28, 2025

Enhancements#

Remix: Experiment With Real LLM Calls

Re-run any captured LLM call with different models, parameters, or prompts — test "what if" scenarios against your actual data.
Quick Prompts: Edit & Redesigned Dialog

Quick prompts now feature editing capabilities alongside a modernized dialog interface.
Timeline Chart Uses Label-Based Coloring

The timeline adopts label-aware coloring for improved visual organization.
Project Appearance Settings

Users gain expanded control over project customization and visual presentation.
Improved Duration Formatting

Duration values display with enhanced intelligence and consistency across the interface.
Display Actual Time Range in Insights

The insights bar now shows the actual time range of the loaded spans, improving transparency.
Expandable Section Tweaks

Collapsible sections function with greater consistency and refinement.

Fixed Flickering with Long Prompt Names in Insights Menu

Long prompt names no longer cause visual flickering.
Fixed Timeseries Chart in Traces View

Resolved rendering and operational issues in span timeseries charting.
Fixed Project Initialization Race Condition

Eliminated startup timing issues affecting project initialization.
Improved Span Label Coloring Logic

Label coloring now correctly prioritizes non-root labels in timeline visualization.

Added API Key Authorization

Server now supports authorization via LENS_SERVER_API_KEYS.
Dedicated Labels API Endpoint

New dedicated endpoint enables more efficient label querying.
Span Scores Storage + CRUD APIs

Server persists span quality scores with complete CRUD operations.
Analytics Endpoint Fixes

Adaptive bucketing and filtering applied consistently across analytics queries.
Improved OpenRouter Cost Extraction

Cost extraction now correctly processes actual model responses.