Chrome 138 will be the last release to support macOS 11; Chrome 139+ will no longer support macOS 11, which is outside of its support window with Apple. Running on a supported operating system is essential to maintaining security. On Macs running macOS 11, Chrome will continue to work, showing a warning infobar, but will not update any further. If a user wishes to have their Chrome be updated, they need to update their computer to a support version of macOS. For new installations of Chrome 139+, macOS 12+ will be required.