Cypress 6.x Upgrade Instructions - projectcypress/cypress GitHub Wiki
Install Clean Version of Cypress v6.3.0
Follow the Cypress V6 Install Instructions if you do not already have a running version of Cypress v6.x.x.
Upgrade Existing Version of Cypress V6.x.x to V6.3.0
Connect to your machine running cypress and run the following command:
curl https://raw.githubusercontent.com/projectcypress/cypress/master/contrib/upgrade_cypress_60.sh | sudo bash -s -- -m
Note: If the upgrade appears to stall, the script may be issuing a prompt to enter your password.