Does MAMP PRO 5 run on Mac OS Catalina beta? MAMP GmbH June 05, 2019 13:13 At this time we cannot guarantee MAMP PRO will work issue free with Mac OS Catalina beta. Related articles My Apache Server will not start? Läuft MAMP PRO 5 auf Mac OS Catalina beta? I upgraded to MAMP PRO 5 and I am missing databases. My SSL sites in my hosts list are red My intl extension is missing.