Line Focus, which removes distractions so that you can move through a Word document line by line.The Office 2021 for Mac and Office LTSC for Windows preview releases launched today come with several new features already available in Microsoft 365 Apps for enterprise, including: 'The next perpetual version of Office for commercial customers is built specifically for organizations running regulated devices that cannot accept feature updates for years at a time, process control devices that are not connected to the internet in manufacturing facilities, and specialty systems that must stay locked in time and require a long-term servicing channel,' the Microsoft 365 Team said. Office LTSC and Office 2021 for Mac will get a five-year support lifecycle after Microsoft reduced LTSC lifecycles for Windows 10 and Office from 10 to 5 years, as announced in February. These are the next versions of non-subscription (aka perpetual) Office products and are made available only for commercial customers. Microsoft has launched the first commercial preview releases for Microsoft Office Long Term Servicing Channel (LTSC) for Windows and Office 2021 for Mac.