# Deno v1.30.0 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.30.0
- **Released:** Jan 26, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.30.0/

## Executive Summary (TL;DR)
Deno v1.30.0. Source highlight: feat(cli): add `DENO_V8_FLAGS` env var (#17313)

## New Features
- feat(cli): add `DENO_V8_FLAGS` env var (#17313)
- feat(fmt): add ability to configure semicolons (#17292)
- feat(fmt): make semi-colon option a boolean (#17527)
- feat(runtime): add bigint to seek typings (#17314)
- feat(runtime/command): make stdin default to inherit for spawn() (#17334)
- feat(runtime/os): add `Deno.env.has()` (#17315)

## Bug Fixes
- fix(ext/ffi): disallow empty ffi structs (#17487)
- fix(napi) use c_char instead of hardcoding i8 to avoid incompatibility with
- fix(napi): correctly handle name in napi_create_function (#17489)
- fix(napi): don't hold on to borrow during iteration (#17461)
- fix(napi): handle return value from initializer (#17502)
- fix(napi): improve napi_adjust_external_memory (#17501)