The 2020.11.25.22 release (grapheneos.org/releases#2020.) will be a preview release meaning it won't be pushed out via the Stable channel.
We're changing our connectivity check toggle to support device owners restricting users from modifying it via an existing user management setting.
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To support existing device managers, it will follow the existing toggle for restricting Private DNS configuration:
developer.android.com/reference/andr
In the future, we'll expose more of these user management restrictions via the Settings app for the owner profile:
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The new release also includes the latest Vanadium. It has a backport of an upstream fix for opening URLs in other apps on Android 11. Due to privacy and phishing issues, we're disabling the autofill assistant. Also disabling telemetry for component updates for when we support it.
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Replying to
Does android 11 support mean support for 5g and if so how would one disable that?
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The currently supported devices don't provide 5G. On a device with 5G support, you can configure it to only use 4G and below with the standard Android Settings app.
GrapheneOS provides the fairly unique ability to disable support for older protocols too with the 4G only mode.
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We're working on greatly expanding support for VoLTE, VoWiFi, etc. to make the LTE-only (4G-only) mode more usable across more carriers. This is expected to be completed by the end of the year. Verizon will be left out of these improvements because we won't include carrier apps.
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What are the dangers with 5G? Ie why are we restricting its use (at the moment)?
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Every supported cellular protocol generation adds substantial attack surface for the radio.
We aren't restricting 5G though, we just don't yet support the latest generation devices since it hasn't been developed so we don't have officially supported devices that support it.
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It's realistic to use 4G only by disabling 2G and 3G support, as long as you have VoLTE support with your carrier or if you don't need traditional telephony calls to work. It's very far from realistic to only use 5G, so a 5G only mode is pointless. Also, 4G is well maintained.
3G and especially 2G are not well maintained. They are simpler protocols, but they're implemented with older code that gets a lot less attention. 5G is far more complex, newer code that's not battle hardened yet. 4G only mode is the most secure way to use cellular right now.
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