# Deno v1.33.2 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.33.2
- **Released:** May 04, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.33.2/

## Executive Summary (TL;DR)
Deno v1.33.2. Source highlight: fix(core): Use primordials for methods (#18839)

## Improvements
- perf(core): async op pseudo-codegen and performance work (#18887)
- perf(core): use jemalloc for V8 array buffer allocator (#18875)
- perf(ext/web): fast path for ws events (#18905)
- perf: lazily create RootCertStore (#18938)
- perf: lazily retrieve ppid (#18940)
- perf: use jemalloc as global allocator (#18957)

## Bug Fixes
- fix(core): Use primordials for methods (#18839)
- fix(core): allow esm extensions not included in snapshot (#18980)
- fix(core): rebuild when JS sources for snapshotting change (#18976)
- fix(ext/io) several sync fs fixes (#18886)
- fix(ext/kv): KvU64#valueOf and KvU64 inspect (#18656)
- fix(ext/kv): stricter structured clone serializer (#18914)