# Vitest v0.9.1 — Release & Upgrade Intelligence
- **Product:** Vitest (https://vitest.dev)
- **Version:** v0.9.1
- **Released:** Apr 07, 2022
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/vitest/updates/v0.9.1/

## Executive Summary (TL;DR)
Vitest v0.9.1. Source highlight: `displayDiff` with non-string (61fbddb)

## New Features
- extend `config.outputFile` to allow objects, close #1068 (#1073) (a63cfa2)

## Bug Fixes
- `displayDiff` with non-string (61fbddb)
- make automocking aware of symbol indexed methods (#1119) (06faf8a)
- re-export mock types (#1120) (45ef020)
- **ui:** fix file error + add colored support (#1108) (b737476)