# Grafana v3.1.0 — Release & Upgrade Intelligence
- **Product:** Grafana (https://grafana.com)
- **Version:** v3.1.0
- **Released:** Jul 12, 2016
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/grafana/updates/v3.1.0/

## Executive Summary (TL;DR)
Grafana v3.1.0. Source highlight: For full details read the Grafana 3.1 Release blog post.

## Breaking Changes & Deprecations
- Breaking changes - **Logging** format have been changed to improve log filtering. - **Graphite PNG** Graphite PNG support dropped from Graph panel (use Grafana native PNG instead).

## New Features
- **Constant Template Variable** have been added to make dashboard sharing easier (use as metric prefix).

## Improvements
- **Logging** format have been changed to improve log filtering.