PMAX Ansible Galaxy Collection update

I'm new to Ansible.  We are using the PMAX Ansible Galaxy Collection v1.6.1 and wish to upgrade to v1.8.  Is there a best practice for the upgrade? 

Also, we noted changes in task names between these versions which appears replace underscores with dots.  I'm guessing playbook tasks will need to be updated.  Are there any other updates to existing playbooks that will be needed?

Thank you