# Cypress v0.4.0 — Release & Upgrade Intelligence
- **Product:** Cypress (https://www.cypress.io)
- **Version:** v0.4.0
- **Released:** Jul 19, 2018
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/cypress/updates/v0.4.0/

## Executive Summary (TL;DR)
Cypress v0.4.0. Source highlight: *Released 04/02/2015*

## New Features
- Added 100+ tests covering Runner + Reporter behavior.
- Added additional `Cypress` events for 3rd party custom handling.

## Improvements
- Performance improvements on successive runnable iterations.
- Aborting currently running tests performance improvement.
- Live reload performance improvements when tests are changed.

## Bug Fixes
- Fixed hook failure associated to wrong failed current test when `grep` was set.
- Fixed bug in mocha where it incorrectly associates `hook.ctx.currentTest` to the wrong `test`. Mocha Issue.
- Fixed putting an `.only` on a large list of tests that would sometimes not clear the previous runnables in the UI.