# Deno v0.31.0 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v0.31.0
- **Released:** Jan 24, 2020
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/deno/updates/v0.31.0/

## Executive Summary (TL;DR)
Deno v0.31.0. Source highlight: BREAKING CHANGE: remove support for blob: URL in Worker (#3722)

## Breaking Changes & Deprecations
- - BREAKING CHANGE: remove support for blob: URL in Worker (#3722)
- - BREAKING CHANGE: remove Deno namespace support and noDenoNamespace option in
- - BREAKING CHANGE: rename dial to connect and dialTLS to connectTLS (#3710)

## New Features
- feat: Add signal handlers (#3757)
- feat: Implemented alternative open mode in files (#3119)
- feat: Use globalThis to reference global scope (#3719)
- feat: add AsyncUnref ops (#3721)
- feat: stabilize net Addr (#3709)

## Improvements
- refactor: Improve path handling in permission checks (#3714)
- refactor: Improve web workers (#3722, #3732, #3730, #3735)

## Bug Fixes
- fix: correct yaml's sortKeys type (#3708)