Adobe Lightroom Classic 15.6.0 — macOS

You shoot a batch of raw files on a weekend trip, import them into Lightroom Classic, and work through edits on a large screen. That's the core workflow this app is built for. It manages your catalog, applies adjustments, and keeps everything local on your Mac—no cloud round-trips required.

Feather and Edge refine masking selections

The current release adds practical controls for masking: Feather and Edge options let you refine selections more precisely. Opacity adjustment for the crop overlay lets you see more of the image area you're trimming. And the new Render to DNG option saves edited photos as rendered DNG files, which can simplify sharing or archiving. Performance during import and preview generation also sees improvements.

Desktop-focused with full catalog control on M1 and Intel Macs

Lightroom Classic remains a desktop-focused application. It still gives you full control over your image catalog and editing tools, and it runs on both Apple Silicon and Intel Macs. The trade-off is that it requires macOS 14 or later. If you're coming from an older version, the interface and general workflow will feel familiar.

Real-world scenario: a portrait photographer's shoot day

A portrait photographer I know works out of a home studio in Lakewood. She shoots tethered when she can, but more often she fills a couple of CFexpress cards during a session, then imports everything into Lightroom Classic afterward. Her typical batch is 400 to 600 raw files. She uses the Library module to flag selects, applies a preset for skin tones, and then masks the background for each portrait. The new Feather and Edge controls in version 15.5.1 are exactly the kind of refinement she needed — she can soften the mask boundary on flyaway hair without losing the edge detail on a jacket collar. Before this release, she sometimes had to take a masked selection into Photoshop for fine edge work. Now she does it all inside Lightroom Classic.

She also relies on the catalog's folder structure to keep client sessions separate. Each shoot goes into a dated folder, and she stacks images by pose. The key for her is that everything stays on a local drive. She syncs to a backup drive after each session, but she never needs to wait on cloud uploads before she can start editing. That local-first design is the reason she stuck with Lightroom Classic when the cloud-based Lightroom came out.

Crop overlay opacity reveals more image area

Version 15.5.1 includes a handful of details that don't make the headlines but save time once you notice them.

• Opacity adjustment for crop overlay. When you're cropping, the dimmed area outside the crop box can obscure details you want to keep. You can now adjust the opacity of that overlay to see more of the image underneath. It's a small slider, but it helps you decide where to place the crop edge.
• Feather and Edge for masking. These aren't just for portraits. If you mask a landscape sky with a hard horizon, a small Feather setting softens the transition. Edge control helps when the mask needs to follow a complex shape like tree branches or a roofline.
• Render to DNG. After you finish editing a photo, you can save it as a rendered DNG file. That means the edits are baked into a DNG, which is easier to hand off to someone who doesn't use Lightroom Classic or to archive in a format that doesn't depend on keeping the catalog intact.

None of these are flashy. They're the kind of adjustments you discover after using the app for a while and think, "I wish I'd known that was there."

Works with your other Mac apps and macOS features

Lightroom Classic doesn't exist in isolation. It works alongside other software you likely already use on your Mac.

Photoshop

The "Edit in Photoshop" command sends a raw file from Lightroom Classic to Photoshop as a TIFF or PSD. You make your changes there, save, and the file appears back in the Lightroom Classic catalog next to the original. This round-trip workflow is straightforward, but it works best if you set your external editing preferences early — choose a file format and color space you'll stick with.

Finder and file management

Lightroom Classic respects the folder structure you set up in the Finder. If you move or rename a folder outside of Lightroom Classic, the app will ask you to locate it again. It's better to make those changes inside the Library module. The app also uses macOS file tags, so you can tag images in the Finder and see those tags in Lightroom Classic.

macOS system features

Lightroom Classic supports VoiceOver, which makes the app usable with macOS accessibility features. It also respects the system's color management settings, so if you've calibrated your display with the built-in Display Calibrator Assistant or a hardware calibrator, your edits will show accurate colors. The app takes advantage of Apple Silicon's performance for tasks like preview generation and exporting, but it still runs on Intel Macs without issue.

Gray preview thumbnails and other frequent fixes

Even after years of using Lightroom Classic, people run into the same few problems. Here are the ones I hear about most often.

• Missing previews. If you see gray boxes instead of thumbnails, the preview cache may be corrupted. Go to the Library module, select all the affected folders, and choose Library > Previews > Build Standard-Size Previews. It takes a few minutes, but it fixes the display.
• Slow import. Importing a large batch of files can lag if you're generating 1:1 previews at the same time. Change the preview setting to "Standard" during import and build 1:1 previews later when you're not in a hurry.
• Catalog file grows too large. Over time, the catalog file can balloon because it keeps previews and history states. Use File > Optimize Catalog to clean it up. Also consider limiting the number of history states in the Preferences > Performance tab.
• Masking edges look unnatural. If a masked area has a hard, artificial edge, the new Feather control is your fix. Add a small feather value — 2 to 5 pixels usually does it — and the transition blends into the background.
• Missing folders after moving files. If you moved or renamed a folder outside of Lightroom Classic, the app will show a question mark on the folder. Right-click the folder and choose "Find Missing Folder" to point it back to the correct location.

Most of these snags have a straightforward solution once you know where to look.

Set catalog location and other key settings before editing

Before you start editing, a few settings adjustments can save you frustration later. These are the ones I recommend changing right after installation.

• Set the catalog location. By default, Lightroom Classic puts the catalog in your Pictures folder. If you have a separate drive for photos, move the catalog there. Keep it on the same drive as your images for best performance.
• Adjust backup frequency. The app asks you to back up the catalog every week by default. If you shoot daily, change this to every day. If you only use it occasionally, once a month is fine. Go to Preferences > Catalog Settings > Backup.
• Configure auto-import. If you import from a memory card regularly, set up auto-import to copy files to a specific folder and apply a develop preset. This saves a few clicks each time.
• Check the performance preferences. In Preferences > Performance, you can adjust the size of the camera raw cache. This speeds up browsing raw files in the Develop module.
• Set the external editing format. Go to Preferences > External Editing and choose TIFF or PSD, 16-bit, ProPhoto RGB. This gives you the most flexibility if you send files to Photoshop or another editor.

These aren't mandatory, but they make the day-to-day experience smoother. Once they're set, you can focus on editing rather than troubleshooting.

• Feather and Edge controls for masking
• Opacity adjustment for viewing cropped-out areas while cropping
• Render to DNG for saving edited photos as rendered DNG files

• macOS 14 or later
• Apple Silicon or Intel 64-bit Mac