[tor-bugs] #22847 [Applications/Tor Browser]: Upgrade Tor Browser Windows builds to cygwin 2.7.0

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#22847: Upgrade Tor Browser Windows builds to cygwin 2.7.0
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     Reporter:  teor                      |      Owner:  tbb-team
         Type:  enhancement               |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:
Actual Points:                            |  Parent ID:  #22798
       Points:                            |   Reviewer:
      Sponsor:                            |
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 cygwin 2.7.0 contains a fix that re-enables Windows automatic TCP buffer
 tuning:

 https://github.com/mirror/newlib-
 cygwin/commit/609d2b22afc63d80029a4fe85e64b51c84ccae08

 This will benefit Windows users on high-bandwidth or high-latency links.
 It will also make a huge difference to Windows relay operators.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22847>
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