# Deno v1.37.1 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.37.1
- **Released:** Sep 27, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.37.1/

## Executive Summary (TL;DR)
Deno v1.37.1. Source highlight: feat(ext/web): use readableStreamDefaultReaderRead in

## New Features
- feat(ext/web): use readableStreamDefaultReaderRead in
- feat(kv_queues): increase max queue delay to 30 days (#20626)
- feat(lsp): support more vscode built-in settings (#20679)
- feat(unstable): add `Deno.jupyter.broadcast` API (#20656)

## Improvements
- perf(ext/fetch): use new instead of createBranded (#20624)
- perf(test): use core.currentUserCallSite (#20669)
- perf(test): use fast ops for deno test register (#20670)

## Bug Fixes
- feat(lsp): cache all dependencies quick fix (#20665)
- fix(cli/test): clear connection pool after tests (#20680)
- fix(ext/http): ensure that resources are closed when request is cancelled
- fix(ext/node): Fix invalid length variable reference in blitBuffer (#20648)
- fix(ext/node): simplified array.from + map (#20653)
- fix(ext/web): Aggregate small packets for Resource implementation of