# Deno v1.0.1 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.0.1
- **Released:** May 20, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.0.1/

## Executive Summary (TL;DR)
Deno v1.0.1. Source highlight: fix(doc): crash on formatting type predicate (#5651)

## New Features
- feat(std/bytes): add hasSuffix and contains functions, update docs (#4801)
- feat(std/fmt): rgb24 and bgRgb24 can use numbers for color (#5198)
- feat(std/hash): add fnv implementation (#5403)
- feat(std/node) Export TextDecoder and TextEncoder from util (#5663)
- feat(std/node): Add fs.promises.readFile (#5656)
- feat(std/node): add util.callbackify (#5415)

## Bug Fixes
- fix(doc): crash on formatting type predicate (#5651)
- fix: Implement Deno.kill for windows (#5347)
- fix: Implement Deno.symlink() for windows (#5533)
- fix: Make Deno.remove() work with directory symlinks on windows (#5488)
- fix: Mark Deno.pid and Deno.noColor as const (#5593)
- fix: Remove debug prints introduced in e18aaf49c (#5356)