Catalina 10.15 need to upgrade but won't allow me

Hi Ma311c,

Welcome to the Apple (user-to-user) Community.

Re: Catalina 10.15 need to upgrade but won't allow me

Wondering which MacBook Pro model (year) you have,

and

which MacOS version you tried to update to,

and

which update method you tried that was unsuccessful.

Ie: Not all models are capable of installing the recent MacOS versions.

How to: Identify your MacBook Pro model:

NB: Lists year (& for earlier models: lists newest compatible OS)

Identify your MacBook Pro model - Apple Support

More info:

How to download macOS - Apple Support

All the best :-)