> On 30 Aug 2021, at 6:30 am, Dave Horsfall <dave@horsfall.org> wrote:
>>> Thanks for the heads-up; I think my MacBook Pro will be stuck =
forever on Sierra 10.12.6 (although admittedly I haven't tried High =
Sierra on this one) and MacPorts 2.6.3 is likely as far as it will go.
>=20
> I successfully installed High Sierra; I needed it to drive a =
multi-function printer that I acquired.

The pressures that prompt us to upgrade the O/S=E2=80=A6 :-)

FWIW I have been on High Sierra for ages, but a few days ago I was =
unable to upload a PDF document to a certain Australian Government =
website, with severe financial penalties if I failed to provide the =
document within 3 weeks. Apple's Telephone Support and I figured out a =
workaround (an image of the document in JPG format), but their chief =
recommendation was to upgrade to Mojave, Catalina or Big Sur, to take =
advantage of major upgrades to Safari=E2=80=A6 Actually I use Firefox, =
but I think it has to go via Safari for some functions=E2=80=A6 I had to =
temporarily switch to Safari to prove to Apple Support that the problem =
is not in Firefox.

Cheers,
Ian Wadham.=