# Deno v1.30.1 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.30.1
- **Released:** Feb 02, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.30.1/

## Executive Summary (TL;DR)
Deno v1.30.1. Source highlight: Revert "fix(watch): preserve `ProcState::file_fetcher` between restarts

## Improvements
- perf(ops): Remove unnecessary fast call fallback options usage (#17585)

## Bug Fixes
- Revert "fix(watch): preserve `ProcState::file_fetcher` between restarts
- fix(core): Add lint check for core (#17223)
- fix(ext): internal `structuredClone` for `ArrayBuffer` and `TypedArray`
- fix(fmt): semiColons: false - handle prop with following generator and do
- fix(install): tsconfig.json -> deno.json for config file suffix (#17573)
- fix(lockfile): emit trailing newline (#17618)