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 ## 7-Zip
 
+This is an optional requirement as of KCC 6.1.0. You only need to install it if 1) are using Windows 10 (2017) or earlier, 2) need to use an older KCC version, or 3) you are using metadata editor.
+
 ### Windows 7-Zip
 
 First install the `64-bit x64` version of 7z from https://www.7-zip.org/ or with command line: