LTSC (Long-Term Servicing Channel) , which is a "one-time purchase" perpetual license intended for regulated or disconnected devices that do not want frequent feature updates. Deployment & Activation
Classic versions of Word, Excel, PowerPoint, Outlook, and OneNote. Microsoft Office LTSC for Mac 2021 v16.55
is a specific release of Microsoft's perpetual (non-subscription) volume-licensed suite for macOS. This version was notable for introducing native support for Apple Silicon (M1/M2 chips) alongside continued support for Intel-based Macs. Key Specifications Version Number: 16.55.1107.0 (and later). LTSC (Long-Term Servicing Channel) , which is a
Universal macOS binary, meaning it runs natively on both Apple Silicon and Intel hardware without requiring Rosetta 2 for optimal performance. LTSC (Long-Term Servicing Channel)