[tor-bugs] #21117 [Core Tor/Tor]: can't migrate onion services to single-hop onion services

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#21117: can't migrate onion services to single-hop onion services
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 Reporter:  weasel                               |          Owner:  teor
     Type:  defect                               |         Status:
                                                 |  assigned
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.2.9.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.2.9.8
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, single-onion, 029-backport,  |  Actual Points:  0.1
  030-backport                                   |
Parent ID:                                       |         Points:  1
 Reviewer:                                       |        Sponsor:
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Comment (by dgoulet):

 Replying to [comment:21 teor]:
 > We spoke with nickm earlier in the week, and decided to add another
 option. It will allow transitions in both directions, and set the
 poisoning state to match.
 >
 > I will do the fix for legacy hidden services, and dgoulet will change
 the next-generation implementation to match.
 >
 > Since 0.2.9 is a LTS release, I hope we can backport this fix there.

 We can't and shouldn't backport this. Adding a new torrc option to a
 stable version can't be backport, it's an ABI change basically. Actually,
 I do *not* recall us deciding to do this fix for legacy hidden service...
 ?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21117#comment:22>
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