This page tracks official /e/OS releases and the security update information that can be verified from public release notes and GitLab backlog issues. It starts at /e/OS 3.0. Notes: this page is still a work in progress: information about the security patch level of the /e/OS Browser will be added soon we’re working with device manufacturers to make vendor security patches available faster Two things are tracked for each release. The Android Security Bulletin is the AOSP patch level, which is the same for every device on a given Android branch. The Vendor security update is the manufacturer firmware build shipped with the release, which covers the hardware specific parts that AOSP patches do not, so it differs from one device to the other.