[tor-bugs] #23721 [Webpages/Styleguide]: Put a banner when detecting old versions of the Tor Browser on the website advising to update

[Tor Bug Tracker & Wiki]

#23721: Put a banner when detecting old versions of the Tor Browser on the website
advising to update
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 Reporter:  cypherpunks          |          Owner:  hiro
     Type:  enhancement          |         Status:  needs_information
 Priority:  Medium               |      Milestone:  website redesign
Component:  Webpages/Styleguide  |        Version:
 Severity:  Normal               |     Resolution:
 Keywords:  ux-team              |  Actual Points:
Parent ID:  #30037               |         Points:
 Reviewer:  antonela             |        Sponsor:
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Comment (by boklm):

 I think a web page cannot easily find the Tor Browser version being used,
 and we probably don't want to make it easy as that would be a
 fingerprinting vector.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23721#comment:8>
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