# Deno v1.28.0 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.28.0
- **Released:** Nov 13, 2022
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.28.0/

## Executive Summary (TL;DR)
Deno v1.28.0. Source highlight: feat(lock): don't require --unstable for auto discovery (#16582)

## New Features
- feat(lock): don't require --unstable for auto discovery (#16582)
- feat(npm): require --unstable for npm specifiers in remote modules (#16612)
- feat(ops): implement fast lazy async ops (#16579)
- feat(runtime): support creating workers with custom v8 snapshots (#16553)
- feat(unstable): "Deno.Command()" API (#16516)
- feat(unstable/npm): module graph derived npm specifier resolution order

## Improvements
- perf(core): minimize trivial heap allocations in `resolve_async_ops` (#16584)
- perf(web): optimize single pass utf8 decoding (#16593)
- perf: more efficient `deno cache` and npm package info usage (#16592)

## Bug Fixes
- fix(ext/flash): revert #16284 and add test case (#16576)
- fix(ext/response): make error, json, redirect enumerable (#16497)
- fix(npm): disable npm specifiers in import.meta.resolve() (#16599)
- fix: update latest release version after github release publish (#16603)