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[tor-relays] New upcoming requirement for relays related to Ed25519 support



Dear tor relay operators,

we want to inform you that in future*, tor directory authorities 
will enforce a new security measurement that disallows relays to 
drop Ed25519 support in case they ever supported it at some point.

In practice that means that if you run tor 0.2.7.2-alpha or later
you can not downgrade to an older tor version without Ed25519 support
anymore.
Tor directory authorities will reject such relays in the future.

You are safe if you do _not_ downgrade from 
any tor version >= 0.2.7.2-alpha
to a version older than that.

We will send a second email to this list once we are near
the actual enforcement of this new requirement (which will not be
to soon from now).

kind regards,
nusenu



* This will come into effect when the majority of tor directory authorities are on
tor 0.3.4.x

ticket:
https://trac.torproject.org/projects/tor/ticket/20522

-- 
https://mastodon.social/@nusenu
twitter: @nusenu_

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