[MacPorts] #68256: Don't reinstall { darwin any } ports after OS major version upgrade

[MacPorts]

#68256: Don't reinstall { darwin any } ports after OS major version upgrade
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 Reporter:  breun        |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:
 Keywords:               |       Port:
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 After a macOS major version upgrade, when I upgrade my ports, I notice
 that `port outdated` shows `(platform darwin 22 ≠ 23)` for ports that use
 `platforms { darwin any }`, and they get reinstalled when I run `sudo port
 upgrade outdated`, which I think is unnecessary. It would be nice if these
 ports could be considered not outdated, so they also won't get
 reinstalled.

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Ticket URL: <https://trac.macports.org/ticket/68256>
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