Both are a possibility, but proceed with greater care if you choose 7.11, it contains many more changes, and is therefore less tested by the Community. As with any upgrade, it’s better if you try it first on a test server.
I downloaded two diferent .zip files from suitecrm 7.10.12. in the first version 7.10.11 is installed. and in the other file issue of the installation in Windows and Linux I get the error: The composer’s autoloader was not found. please run “install composer”
Could you please indicate which is the route to download the correct file?