


We would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel. Reported by Clément Lecigne from Google TAG, with technical assistance from Sergei Glazunov and Mark Brand from Google Project Zero on High CVE-2021-37973 : Use after free in Portals. Please see the Chrome Security Page for more information. Below, we highlight fixes that were contributed by external researchers. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven’t yet fixed. Note: Access to bug details and links may be kept restricted until a majority of users are updated with a fix.
