Pulpcore 3.15.0 is generally available.
Users should use the 3.15.0 release of the pulp_installer to install or upgrade their installations. This version of the installer will check compatibility of all installed plugins with pulpcore 3.15. The installer will abort if any plugin is incompatible.
The pulp_installer collection can be installed from Ansible Galaxy with the following command:
ansible-galaxy collection install --force pulp.pulp_installer
--force flag will upgrade the collection if you had a previous version installed.