In the video below, you’ll find out how Lightroom Classic saves changes in the catalog as well as into the individual photos or, as an XMP sidecar file when working with proprietary raw file formats.
Automatically write changes into XMP — Edits made in the Develop module will be saved into XMP only after the active image selection changes (in other words, when you move to another image). Note: Automatically write changes to XMP must be enabled in Catalog Settings for Lightroom Classic to write the settings to the files (or to an external sidecar file for proprietary raw files).
