Paid Memberships Pro Update 2.4.2 is out with a handful of bug fixes and enhancements.
Several updates have been made to the PMPro REST API endpoints. In addition to fixing a few open issues, we have also made the REST API more secure by requiring appropriate user capabilities to access even the read-only (GET) endpoints. This is a good improvement, but also could break integration that was set up under the assumption that some of these endpoints had public access.