Adobe has released Lightroom Classic 15.4, bringing a set of tools aimed at helping creators handle growing image libraries. The update includes a duplicate finder that scans the catalog for identical or near‑identical files, allowing users to locate and remove redundant copies without leaving the application. This addition targets a common pain point for photographers who accumulate thousands of shots over time.

In addition to the duplicate finder, the release notes highlight improved AI masking capabilities. The enhanced masking engine builds on Adobe’s existing Sensei technology, offering more accurate selections for complex subjects such as hair, fur, or translucent objects. These refinements are intended to reduce the time spent on manual brushing and improve the precision of localized adjustments.

Another key addition is smarter group culling, which works alongside the duplicate finder to help users quickly evaluate and flag images for further. The feature groups similar shots based on visual content, enabling creators to review sets as a whole rather than scrolling through individual frames. According to the summary, at least a few of these updates will change how users manage and edit images on a day‑to‑day basis.

For creators whose libraries have expanded to tens of thousands of files, the duplicate finder alone can provide immediate value by freeing up storage and simplifying backup routines. Combined with the AI masking upgrades and group culling, the update offers a more cohesive workflow for sorting, selecting, and editing large collections without relying on external utilities.

Overall, Lightroom Classic 15.4 focuses on practical library management tools that address real‑world challenges faced by professional and enthusiast photographers. By integrating duplicate detection, smarter culling, and refined AI masking, Adobe aims to make the editing process more efficient while keeping the familiar Lightroom Classic interface intact.