# Grafana v6.6.2 — Release & Upgrade Intelligence
- **Product:** Grafana (https://grafana.com)
- **Version:** v6.6.2
- **Released:** Feb 20, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/grafana/updates/v6.6.2/

## Executive Summary (TL;DR)
Grafana v6.6.2. Source highlight: Download Page

## New Features
- **Data proxy**: Log proxy errors using Grafana logger. #22174, @bergquist
- **Metrics**: Add gauge for requests currently in flight. #22168, @bergquist

## Bug Fixes
- **@grafana/ui**: Fix displaying of bars in React Graph. #21968, @ivanahuckova
- **API**: Fix redirect issue when configured to use a subpath. #21652, @briangann
- **API**: Improve recovery middleware when response already been written. #22256, @marefr
- **Auth**: Don't rotate auth token when requests are cancelled by client. #22106, @bergquist
- **Docker**: Downgrade to 18.04 LTS base image. #22313, @aknuds1
- **Elasticsearch**: Fix auto interval for date histogram in explore logs mode. #21937, @ivanahuckova