# Deno v1.31.3 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.31.3
- **Released:** Mar 16, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.31.3/

## Executive Summary (TL;DR)
Deno v1.31.3. Source highlight: fix(check): regression where config "types" entries caused type checking

## Improvements
- perf: do not depend on iana-time-zone (#18088)

## Bug Fixes
- fix(check): regression where config "types" entries caused type checking
- fix(core): Upgrades bytes crate from =1.2.1 to ^1.4.0 (#18123)
- fix(core): `SafePromiseAll` to be unaffected by `Array#@@iterator` (#17542)
- fix(core/internal): fix typo in primordial type definitions (#18125)
- fix(ext/fs): retry if file already exists in makeTempFile (#17787)
- fix(ext/http): abort request signal when response errors (#17822)