# Deno v0.12.0 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v0.12.0
- **Released:** Jul 16, 2019
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v0.12.0/

## Executive Summary (TL;DR)
Deno v0.12.0. Source highlight: feat: Support window.onload (#2643)

## New Features
- feat: Support window.onload (#2643)
- feat: generate default file name for bundle when URL ends in a slash (#2625)

## Bug Fixes
- fix: for '-' arg after script name (#2631)
- fix: upgrade v8 to 7.7.200 (#2624)
- fix: emptydir on windows (denoland/deno_std#531)