[MacPorts] #26028: Add feature to show changes between port versions

[MacPorts]

#26028: Add feature to show changes between port versions
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  Reporter:  sewebster@…  |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Low          |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by macports.org@…):

 Cc Me!

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Ticket URL: <https://trac.macports.org/ticket/26028#comment:10>
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