# Deno v0.3.4 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v0.3.4
- **Released:** Mar 20, 2019
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v0.3.4/

## Executive Summary (TL;DR)
Deno v0.3.4. Source highlight: Changes in Deno itself

## New Features
- Add --no-prompt flag for non-interactive environments (#1913)
- Add fs extras: ensureDir, ensireFile, readJson, emptyDir, move, exists (#269,
- asserts: Add unimplemented, unreachable, assertNotEquals, assertArrayContains

## Improvements
- Improvements to internal deno_core crate (#1904, #1914)
- Datetime module improvement (#259)