# Deno v1.12.1 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.12.1
- **Released:** Jul 19, 2021
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.12.1/

## Executive Summary (TL;DR)
Deno v1.12.1. Source highlight: fix: Big{U|}Int64Array in crypto.getRandomValues (#11447)

## Bug Fixes
- fix: Big{U|}Int64Array in crypto.getRandomValues (#11447)
- fix(extensions/http): correctly concat cookie headers (#11422)
- fix(extensions/web): aborting a FileReader should not affect later reads (#11381)
- fix(repl): output error without hanging when input is invalid (#11426)
- fix(tsc): add .at() types manually to tsc (#11443)
- fix(workers): silently ignore non-existent worker IDs (#11417)