App stuck on verifying mac sierra mac. Your Mac also needs at least 2GB of memory and 8.8GB of.introduced in late 2009 or laterintroduced in late 2010 or laterintroduced in mid 2010 or laterintroduced in mid 2010 or laterintroduced in late 2009 or laterintroduced in mid 2010 or laterTo find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . You..