MacRumors published a story that Apple has released the first beta of macOS Catalina 10.15.5 to registered developers.
Apple Seeds First Beta of Upcoming macOS Catalina 10.15.5 Update to Developers
Apple today seeded the first beta of an upcoming macOS Catalina 10.15.5 update to developers for testing purposes, one week after releasing macOS Catalina 10.15.4 with Screen Time Communication Limits, iCloud Folder Sharing, and real-time Apple Music lyrics.
Apple Seeds First Beta of Upcoming macOS Catalina 10.15.5 Update to Developers