Recover space in the .lrcat-data file

[Energetic_leader1549]

In the new Lightroom Classic 14.4, if you roll back a Denoise edit in the History panel, can you reclaim the space it used in the .lrcat-data file by running Optimize Catalog to reduce the file size? I assume the same question applies to other data stored in .lrcat-data too, such as masks, healing layers, and AI-driven edits?

[Ian Lyons · Accepted solution]

Simply stepping back through History will not clear the date, even if you use Optimise Catalog. To remove the data you need to use 'Clear History Above This Step'. I've attached a screenshot that shows how.