GrapheneOS 2019.09.23.19 release: grapheneos.org/releases#2019..
This will be the initial Stable channel release targeting Android 10.
Now that the initial port is done, work can begin on restoring past privacy/security features and implementing new ones. See github.com/GrapheneOS/os_.
Conversation
Does Graphene OS get Google security patches at the same time as other OEMs?
I could not find anything regarding this on the website.
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GrapheneOS is a partner in the security program so it receives security patches in advance. It doesn't help with much, since it only really takes a day to integrate the patches, build, test and ship a release. Major version upgrades are also a different story as you can see here.
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OK great.. I was not if Graphene was at a disadvantage to OEMs in terms of monthly security patches. Good to know its not.
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It's at a major disadvantage for these major version upgrades though, at least for the time being. It appears much harder to work out an arrangement to get early access for those especially since GrapheneOS doesn't follow their rules. They're friendlier with security updates.
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The major version upgrades bring a lot of important privacy and security improvements every year. When the device support code receives an upgrade to the new major release (which is optional, due to Treble), that tends to prevent simply staying on the previous branch for a while.
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Each major release of the OS is supported for 3 years, so it's possible to stick to a single major release for 3 years, but that would miss out on not only substantial privacy/security improvements (rather than only the bug fixes) but also generally blocks full security updates.