As noted by 9to5Mac.com, Apple seems to be gearing up to discontinue its photo printing service later this year.
The service allows customers to send the company almost any photo(s) and have them professionally printed and mounted in a customized binder.
Now, a new message has been spotted in the Photos app on macOS 10.13.6 and states that final purchases for the built-in photo printing service will need to be placed by September 30, 2018. Afterwards, it appears that Mac users will have to opt for third-party companies like Shutterfly to craft physical books made from their digital photos.
Apple explains that users can integrate these third-party services into Photos with a Photos Project Extension downloaded from the Mac App Store. With these extensions, apps like Shutterfly can integrate photo printing services into Apple’s own Photos app so users don’t have to leave the app to build their photo books.
No word on when (or even if) the service will be discontinued.