# Deno v1.0.4 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.0.4
- **Released:** Jun 02, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.0.4/

## Executive Summary (TL;DR)
Deno v1.0.4. Source highlight: feat(core): Ops can take several zero copy buffers (#4788)

## New Features
- feat(core): Ops can take several zero copy buffers (#4788)
- feat(std/hash): add Sha512 and HmacSha512 (#6009)
- feat(std/http) support code 103 Early Hints (#6021)
- feat(std/http): add TooEarly status code (#5999)
- feat(std/io): add LimitedReader (#6026)
- feat(std/log): buffered file logging (#6014)

## Bug Fixes
- fix(bundle): better size output (#5997)
- fix(cli): Deno.remove() fails to remove unix socket (#5967)
- fix(cli): compile TS dependencies of JS files (#6000)
- fix(cli): ES private fields parsing in SWC (#5964)
- fix(cli): Better use of @ts-expect-error (#6038)
- fix(cli): media type for .cjs and application/node (#6005)