The first Security Preview release of #GrapheneOS is now live and available to opt in. Android has scheduled monthly security patch releases. For security patches, Google assigns patches to be released in different months in the future, and are then distributes them early to Android OEMs with a source code release embargo that lasts a month. This means that they fix certain vulnerabilities 3-4 months before an official publication date. This is problematic, as this is just a manual delay getting patches to users that can be taken advantage of by highly sophisticated threats. It is September 25th. There are security patches scheduled for December that aren't going to be released until then. By being able to opt-in to a Security Preview you get such patches before everyone. We will still work to make early patching in the main release branch of GrapheneOS as we have done already. These are all brand new changes we have access too thanks to our new OEM partnership. To keep GrapheneOS open source and not delayed open source, this will strictly be opt-in and on a separate release channel. Do not opt in if you do not want that. The Security Preview is for people: - Who want patches immediately, without the traditional 1 month delay. - Who want to perform security research / reverse engineering on the latest Android security patches. View quoted note →

#GrapheneOS version 2025092500 and Security Preview 2025092501 released: This update adds more Android 16 QPR1 backports and the ability to opt-in to Security Preview updates. The Security Preview update channel have very early full patches that are held under an embargo. The first Security Preview will contain extremely early security patches scheduled to be released in Android by December. The security preview provides patches for 55 (1 critical, 54 high) vulnerabilities. Changes added to 2025092500: - System Updater: add support for opting into security preview releases - backport more cellular related code from Android 16 QPR1 - backport Pixel Wi-Fi extension APEX from Android 16 QPR1 - Vanadium: update to version 140.0.7339.207.0 Additional security patches from the November 2025 and December 2025 Android Security Bulletins are included in the 2025092501 security preview release. List of additional fixed CVEs: Critical: CVE-2025-48593 High: CVE-2022-25836, CVE-2022-25837, CVE-2023-40130, CVE-2024-43766, CVE-2025-22420, CVE-2025-22432, CVE-2025-32348, CVE-2025-48525, CVE-2025-48536, CVE-2025-48544, CVE-2025-48555, CVE-2025-48567, CVE-2025-48572, CVE-2025-48573, CVE-2025-48574, CVE-2025-48575, CVE-2025-48576, CVE-2025-48577, CVE-2025-48578, CVE-2025-48579, CVE-2025-48580, CVE-2025-48581, CVE-2025-48582, CVE-2025-48583, CVE-2025-48584, CVE-2025-48585, CVE-2025-48586, CVE-2025-48587, CVE-2025-48589, CVE-2025-48590, CVE-2025-48592, CVE-2025-48594, CVE-2025-48595, CVE-2025-48596, CVE-2025-48597, CVE-2025-48598, CVE-2025-48600, CVE-2025-48601, CVE-2025-48602, CVE-2025-48603, CVE-2025-48604, CVE-2025-48605, CVE-2025-48607, CVE-2025-48609, CVE-2025-48611, CVE-2025-48612, CVE-2025-48614, CVE-2025-48615, CVE-2025-48616, CVE-2025-48617, CVE-2025-48618, CVE-2025-48619, CVE-2025-48620, CVE-2025-48621 We're allowed to provide an early release with these patches and to list the CVEs but must wait until the embargo ends to publish sources or details on the patches. We strongly disagree with broadly distributing patches to OEMs 3-4 months before the official publication date. It further delays getting patches to users and sophisticated attackers will have no issue getting the patches from one of many people at Android OEMs with early access. It should be limited to at most 7 days. The lack of actual secrecy has been acknowledged through Android limiting the embargo to source code and details which allows us to fix these early. We're doing it with separate opt-in releases to keep the regular releases properly open source instead of delayed open source. We plan to integrate this choice into the initial setup wizard. The positive side is that we can now provide patches to people who truly need them without even the previous 1 month embargo delay.

Next release of #GrapheneOS will add support to opt-in for Security Preview releases. These will be separate release channels for users to receive security patches that have source code and vulnerability information under an embargo. The next security preview contains early patches for 1 Critical vulnerability, and 54 High vulnerabilities.

For users of the 'Helium' browser going all over Twitter, it is ungoogled-chromium based, so the following flags are available. They advertised it on their site, but there's no full docs releases by them. Putting here so most can see it. Not an endorsement of a browser, especially one that is so new. People conscious about their security should stick to established apps that they trust. View quoted note →

This ergonomics shit is serious Put the top of your monitor at level to your eyes Avoid bending your neck Keep monitor an arms reach away Ensure shoulders do not shrug when you type Do not bend your wrists Do not lean forwards Keep arms, shoulders, legs straight Ensure feet are touching a surface Use an adjustable padded seat Make sure the height is high enough to sit with your knees further down than your thighs Have the back straight or very slightly leaned backwards Stand up and walk around every 30 minutes View quoted note →