I have a MacBook Pro that is about 10 years old I just completed a calendar using "Photos" but when I tried to buy it I was informed that I need to update my "photos" How do I do that? It seems to me I had the same problem last year.
Apple does no longer print books and calendars since September 30.
Save your Calendar as a PDF preview and order it from a different service. For example, Mimeo will print from a PDF upload, see: https://discussions.apple.com/thread/250008181)
Mimeo used to print for Apple, so the quality will be similar to the old Apple calendars.
To create new print projects in Photos you need to upgrade to macOS 10.13 or macOS 10.14, see:
Have a look at this user tip:
Post 9/30/2018 Printing Options for Photos - Apple Community
And also:
Use Project Extensions to order print products in Photos after September 30, 2018 - Apple Support
Create and order print products in Photos with Project Extensions - Apple Support
Frustrated with calendar purchase, again!
