# Cypress v4.0.2 — Release & Upgrade Intelligence
- **Product:** Cypress (https://www.cypress.io)
- **Version:** v4.0.2
- **Released:** Feb 14, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/cypress/updates/v4.0.2/

## Executive Summary (TL;DR)
Cypress v4.0.2. Source highlight: *Released 2/14/2020*

## Improvements
- Improved the error experience GUI when launching a browser fails. Addresses #6432.
- Improved the error experience when visiting the Cypress server outside of a Cypress-launched browser. Addresses #6435.

## Bug Fixes
- Fixed a bug where Firefox tests could fail to run on macOS if another instance of Firefox was open. Addresses #6380.
- Fixed a bug where re-running a failed workflow in GitHub Actions would not generate a new Dashboard run. Addresses #6450.
- Fixed incorrect type definitions for `Cypress.isBrowser`. Addresses #6447.
- Fixed a regression introduced in 4.0.0 where using `.should('contain', ...)` on a `cy.contains()` would produce unexpected results. Addresses #6384.