[tor-bugs] #11103 [Tor]: Get rid of the v2dir status flag now that v2 dir protocol is dead?

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#11103: Get rid of the v2dir status flag now that v2 dir protocol is dead?
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     Reporter:  arma         |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  normal       |  Milestone:  Tor: 0.2.???
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |
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Changes (by nickm):

 * milestone:  Tor: 0.2.6.x-final => Tor: 0.2.???


Comment:

 0.2.4 clients and earlier still parse it; 0.2.4 uses it in two places in
 routerlist.c that I can't be sure are completely irrelevant.  In
 particular, when we fetch v2 dirinfo in order to cache it, we look for a
 v2dir flag.  Will removing v2dir from all the nodes be safe?  Who can say?

 I recommend that we remove the V2Dir flag from consensuses once 0.2.4 is
 unsupported.  After compression, it costs us practically nothing:
 {{{
 [1344]$ cat ~/.tor/cached-microdesc-consensus |gzip -9 -c |wc -c
 451574
 [1345]$ cat ~/.tor/cached-microdesc-consensus |perl -pe 's/ V2Dir//;'
 |gzip -9 -c |wc -c
 450332
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11103#comment:1>
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