[tor-bugs] #33299 [Circumvention/BridgeDB]: Remove retired pluggable transports from BridgeDB

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#33299: Remove retired pluggable transports from BridgeDB
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 Reporter:  phw                     |          Owner:  phw
     Type:  task                    |         Status:  needs_information
 Priority:  Medium                  |      Milestone:
Component:  Circumvention/BridgeDB  |        Version:
 Severity:  Normal                  |     Resolution:
 Keywords:  s30-o22a2               |  Actual Points:
Parent ID:  #31279                  |         Points:  0.5
 Reviewer:  cohosh                  |        Sponsor:  Sponsor30-can
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Changes (by cohosh):

 * status:  needs_review => needs_information


Comment:

 These changes look good. Some other things to consider:
 - This ticket that changes the email body should be updated to remove the
 transport TYPEs we don't support: #30941
 - There are still a bunch of tests (e.g.,
 [https://gitweb.torproject.org/bridgedb.git/tree/bridgedb/test/test_email_request.py#n63
 here) that use obfs3
 - I noticed obfs3 usage in particular is still
 [https://metrics.torproject.org/userstats-bridge-
 transport.html?start=2019-11-20&end=2020-02-18&transport=obfs2&transport=obfs3&transport=fte&transport=scramblesuit
 pretty high]. I wonder if these are mostly users who already had obfs3
 bridges or if we can even tell.

 Just doing a grep for "obfs3" in the git repository shows it comes up in a
 lot of places, including l10n files, do we need to worry about that?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33299#comment:3>
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