# Deno v0.3.9 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v0.3.9
- **Released:** Apr 25, 2019
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v0.3.9/

## Executive Summary (TL;DR)
Deno v0.3.9. Source highlight: Fix #2033, shared queue push bug (#2158)

## New Features
- Add Deno.kill(pid, signo) and process.kill(signo) (Unix only) (#2177)
- http: add cookie module (denoland/deno_std#338)
- fs: add getFileInfoType() (denoland/deno_std#341)
- fs: add ensureLink/ensureLinkSync (denoland/deno_std#353)
- fs: add ensureSymlink/ensureSymlinkSync (denoland/deno_std#268)
- fs: add readFileStr, writeFileStr (denoland/deno_std#276, denoland/deno_std#340)

## Bug Fixes
- Fix #2033, shared queue push bug (#2158)
- Fix panic handler (#2188)
- core: make Isolate concrete, remove Dispatch trait (#2183)