[tor-bugs] #31549 [Core Tor/Tor]: Authorities should stop listing relays running pre-0.2.9, or running 0.3.0 through 0.3.4

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#31549: Authorities should stop listing relays running pre-0.2.9, or running 0.3.0
through 0.3.4
-------------------------------------------------+-------------------------
 Reporter:  nickm                                |          Owner:  nickm
     Type:  enhancement                          |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.4.2.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  042-can 041-backport consider-       |  Actual Points:
  backport-after-authority-test consider-        |
  backport-after-0421 tor-dirauth tor-           |
  bridgeauth                                     |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by dgoulet):

 Replying to [comment:14 teor]:
 > This change also affects the bridge authority.
 >
 > Let's check how many bridges are on old versions, then decide if we want
 to:
 > * contact all the operators who are on old versions, or

 Isn't this a bit difficult? ContactInfo are sanitized out of the bridge
 descriptors afaik?

 Meaning, we would need to ask BridgeDB or Collector admin to basically
 compile a list for us and sekretly pass it down to someone to mass email
 operators... That is... interesting.

 > * modify the patch to change the versions that the bridge authority
 allows.

 What I would do is make sure TB default bridges are all 035 >= (which is
 the majority of bridge traffic). But I would not treat differently bridges
 from relays. Not only those relays are EOL but some have bad TROVE issues
 so imo we shouldn't behave differently.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31549#comment:16>
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