# Cypress v0.15.4 — Release & Upgrade Intelligence
- **Product:** Cypress (https://www.cypress.io)
- **Version:** v0.15.4
- **Released:** Jul 19, 2018
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/cypress/updates/v0.15.4/

## Executive Summary (TL;DR)
Cypress v0.15.4. Source highlight: *Released 04/22/2016*

## Breaking Changes & Deprecations
- Breaking Changes:** - You can no longer improperly use [.its()](https://on.cypress.io/its) and [.invoke()](https://on.cypress.io/invoke). Using [.invoke()](https://on.cypress.io/invoke) on a non function property will result in an error that tells you how to write it properly using [.its()](https://on.cypress.io/its).

## New Features
- Added a new link to Options dropdown in Desktop app for "Chat" that goes to our chat.

## Improvements
- Error messages and command messages for .its() and .invoke() have been improved.
- Better error handling of unauthorized users attempting to login to Cypress with improved Login documentation.

## Bug Fixes
- Using .its() on a function will now allow you to access its properties instead of automatically calling a function. Fixes #122.
- During `cypress run`, windows created with `window.open` will no longer physically display. They are now correctly headless. Fixes #123.