phpunit 9.6.* dependency sebastian/resource-operations was abandoned

FYI this can be handled on a per-project basis by modifying the composer.json file:

https://getcomposer.org/doc/06-config.md#abandoned

    "config": {
        "audit": {
            "abandoned": "report"
        }
    }

or

    "config": {
        "audit": {
            "abandoned": "ignore"
        }
    }

This can probably be closed as-is, if nothing else it'll be documentation for the next person who searches for this.

https://github.com/sebastianbergmann/phpunit/issues/4828 was updated with a new release adding abandoned: false to prevent this error on composer audit going forward. I think this can be closed as fixed now.

Also if you are not pushing your site's dev dependencies to your hosting/production code, you can also use composer audit --no-dev.

But according to the maintainer, it is actually abandoned in all respects, except for that attribute, correct?

The library is not getting any more updates, no, and PHPUnit 9 is also not getting any more bug fixes either. Ideally updating to PHPUnit 10 or 11 removes the dependency on the abandoned package.

The library is literally an array.