Sidekiq job migration

From this page Sidekiq job migration, it mentions migrating sidekiq jobs, if the Sidekiq routing rules change, does that mean sidekiq['queue_group'] has changed, in this case you need to execute sudo gitlab-rake gitlab:sidekiq: migrate_jobs:retry gitlab:sidekiq:migrate_jobs:schedule to reschedule jobs to a new queue? If you just adjust the parameter sidekiq['queue_group'] and do reconfigure, does it mean that all jobs are still running in the old queue, and new jobs will be routed to the new queue?