I'm having problems updating macOS
Having problem updating software
[Re-Titled by Moderator]
MacBook Pro 13″, 10.12
What is the nature of your issue? What happens when you try to update? Do you get an error message? What does it say exactly?
Identify your MacBook Pro model - Apple Support (year-season, other specifics)
It is possible that your model Mac is limited in compatible versions macOS. Older Macs may have a maximum version, then no new updates are available after that. Each version macOS has a list of compatible devices.