# Deno v2.0.1 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v2.0.1
- **Released:** Oct 17, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v2.0.1/

## Executive Summary (TL;DR)
Deno v2.0.1. Source highlight: feat(lsp): "deno/didRefreshDenoConfigurationTree" notifications (#26215)

## New Features
- feat(lsp): "deno/didRefreshDenoConfigurationTree" notifications (#26215)
- feat(unstable): `--unstable-detect-cjs` for respecting explicit

## Improvements
- perf(http): avoid clone getting request method and url (#26250)
- perf(http): cache webidl.converters lookups in ext/fetch/23_response.js
- perf(http): make heap allocation for path conditional (#26289)
- perf: use fast calls for microtask ops (#26236)

## Bug Fixes
- fix(add): create deno.json when running `deno add jsr:<pkg>` (#26275)
- fix(add): exact version should not have range `^` specifier (#26302)
- fix(child_process): map node `--no-warnings` flag to `--quiet` (#26288)
- fix(cli): add prefix to install commands in help (#26318)
- fix(cli): consolidate pkg parser for install & remove (#26298)
- fix(cli): named export takes precedence over default export in doc testing