BUG: Incompatible API changes for "applications" endpoint

Since a couple of minutes the API is not working anymore for a "deprecated" (but still not unsupported) query parameter: qualified.

The response is:

{
"message": "Unknown query parameter 'qualified'",
"errors": [
{
"path": "/query/qualified",
"message": "Unknown query parameter 'qualified'"
}
]
}

Once again: Why do you continuously change the API in an incompatible manner without informing users.