[MacPorts] #55551: boost update to 1.66.0 release

[MacPorts]

#55551: boost update to 1.66.0 release
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 Reporter:  michaelld  |      Owner:
     Type:  update     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:
 Keywords:             |       Port:  boost
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 subject says it all; 1.66.0 was released Monday Dec 18. Getting this
 ticket in place for the inevitable requests to update boost. I'll work on
 updating locally & post a patch / tarball that works for me for others to
 test.

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Ticket URL: <https://trac.macports.org/ticket/55551>
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