# Deno v1.0.3 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.0.3
- **Released:** May 29, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.0.3/

## Executive Summary (TL;DR)
Deno v1.0.3. Source highlight: fix: Add unstable checks for Deno.dir and Diagnostics (#5750)

## New Features
- feat(std/encoding): Add base64 (#5811)
- feat(std/http): Handle .wasm files in file_server (#5896)
- feat(std/node): Add link/linkSync polyfill (#5930)
- feat(std/node): fs.writeFile/sync path can now be an URL (#5652)
- feat(std/testing): Return results in benchmark promise (#5842)

## Bug Fixes
- fix: Add unstable checks for Deno.dir and Diagnostics (#5750)
- fix: Add unstable checks for unix transport (#5818)
- fix: Create HTTP cache lazily (#5795)
- fix: Dependency analysis in TS compiler (#5817, #5785, #5870)
- fix: Expose Error.captureStackTrace (#5254)
- fix: Improved typechecking error for unstable props (#5503)