这里特别解释一个版本：Windows 10 Enterprise LTSB （ Long Term Servicing Branch ）长期服务分支
On these branches, customer devices will receive the level of enterprise support expected for the mission critical systems, keeping systems more secure with the latest security and critical updates, while minimizing change by not delivering new features for the duration of mainstream (five years) and extended [url=http://support2.microsoft.com/default.aspx?scid=fh;[ln];lifecycle]support[/url] (five years). On Long Term Servicing branches, customers will have the flexibility to deliver security updates and fixes via Windows Server Update Services (WSUS) which allows full control over the internal distribution of updates using existing management solutions such as System Center Configuration Manager or to receive these updates automatically via Windows Update. （来源：微软博客）
理解：微软正在将Windows 10打造成一个新的服务体系，并针对客户状况和需求分为多个分支，这提升了微软企业为用户所提供服务的专业性和精准性。LTSB(长期服务分支)就是专门面向企业版的，支持周期长达10年，但只会推送安全更新和热修复补丁，而不会增加任何新功能。另外，经微软确认的最新消息显示，LTSB分支上的Windows 10企业版不会预装Edge。（非上述英文翻译）