I just did a fresh Drush installation, and now I have version 8.1.15.
When I run
drush rr, I get the following error message.
The drush command 'rr' could not be found. Run
drush cache-clear drushto clear the commandfile cache if you have installed new extensions.
Even after running
drush cache-clear, I still get that
rr is not a known command.
Is this still available in Drush 8?