# DuckDB v0.2.7 — Release & Upgrade Intelligence
- **Product:** DuckDB (https://duckdb.org)
- **Version:** v0.2.7
- **Released:** Jun 14, 2021
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/duckdb/updates/v0.2.7/

## Executive Summary (TL;DR)
DuckDB v0.2.7. Source highlight: This preview release of DuckDB is named "Mollissima" after the Common Eider (Somateria mollissima).

## New Features
- #1832: Add visualizer extension
- #1773: Add support for key/value style configuration, and expose this in the Python API
- #1842: Add (Persistent) Struct Storage Support
- #1804: Use Allocator class in buffer manager and add a test for a custom allocator usage

## Improvements
- #1852, #1840, #1831, #1819 and #1779: Improvements to Arrow Integration