Servicing and patching
When we talk about changes to the way to service (or patch) Windows, it's important to first understand how things worked with Windows 7 and Windows 8.1. Each month, Microsoft released somewhere between 1 and 20 individual fixes for each one: some security updates, some non-security updates. Most of these patches were General Distribution Release (GDR), meaning available on WU, WSUS, and Windows Update Catalog. Some patches where released under Limited Distribution Release (LDR) (also formerly known as Quick Fix Engineering (QFE)). LDR packages contain other fixes that have not undergone testing as extensive, and resolve issues that only a fraction of the millions of Windows users might ever encounter. These LDR patches ...
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