Whenever I try to add a new package using composer like \"composer require packagename/package\" or use \"composer.phar update\", I am getting all the
\"composer require packagename/package\"
\"composer.phar update\"
From my experience, the best way to exclude 1 or some packages is to use --interactive in composer update.
$ composer update --interactive
When you do this you can select which package you want to update and skip the package that you don't want to update.