Confused? Start here. Developers: Check out our testing and debugging tips. Adding `SameSite=None; Secure` to your cookies? Check the list of incompatible clients here. Check the list of Frequently Asked Questions (FAQ) for common scenarios and use cases. Launch Timeline Last updated Mar 18, 2021. Latest update: Mar 18, 2021: The flags #same-site-by-default-cookies and #cookies-without-same-site-m