Adobe Lightroom Classic version 12.3, released on April 18, 2023, introduced significant AI-driven features and workflow enhancements, most notably a ground-up redesign of noise reduction technology. Key Feature: AI Denoise
The flagship update in 12.3 was AI Denoise, an AI-powered tool designed to remove noise from RAW files while preserving fine detail better than previous manual sliders.
Mechanism: Unlike traditional luminance sliders that often "smear" details or create a plasticky look, the AI algorithm distinguishes between noise and structural details like feathers or skin texture.
Workflow: Users can apply it via the Detail panel. It creates a new Enhanced DNG file, leaving the original RAW file untouched.
Performance: On mid-range hardware (e.g., GTX 1060), denoising a single high-resolution image takes approximately 60 to 70 seconds.
Best Practices: Expert tests suggest a "sweet spot" setting between 40 and 60 for the best balance of cleanliness and sharpness. Additional Enhancements
Masking Improvements: New AI categories for masking people allow for precise, automatic selection of facial hair and clothing.
Tone Curve in Masking: Support was added for using the Curve tool within local masking, providing much finer control over contrast and color in specific parts of an image. Adobe Lightroom Classic 12.3
Edit Indicators: The interface now provides a quick visual indication of which specific tools (e.g., Crop, Healing, Masking) have been used on an image.
Workflow Tools: Support for opening photos as Smart Object Layers in Photoshop was streamlined. Device and Lens Support
The update added support for several new cameras and lenses, including models from Sigma and Sony. Technical Specifications Release Date April 18, 2023 Platform Windows, macOS Model Subscription-based Replaces Version 12.2 Successor Version 12.4 (released June 2023) New in Adobe Lightroom Classic 12.3 - AI Denoise
Adobe Lightroom Classic 12.3, released in April 2023, introduced major enhancements to the Develop module, most notably the AI-powered Denoise tool and expanded masking capabilities. Key Develop Module Updates in 12.3
AI Denoise: This flagship feature uses artificial intelligence to remove noise from high-ISO RAW images while preserving detail. It creates a new, separate DNG file (e.g., filename-Enhanced-NR.dng) next to the original.
Tone Curves in Masking: For the first time, you can apply Tone Curve adjustments locally within the Masking panel.
Enhanced Masking Tools: New categories for People masks were added, allowing for precise adjustments to facial hair and clothes. Adobe Lightroom Classic version 12
Performance Improvements: General speed enhancements for the Develop module, particularly when toggling between edited and unedited states. How to Use Develop in 12.3
Enter the Module: Select an image and press the D key or click Develop in the Module Picker.
Access AI Denoise: Scroll to the Detail panel and click the Denoise button, or go to Photo > Enhance.
Local Adjustments: Click the Masking icon (circle with a dashed border) to use the new Curve tool for specific areas like the sky or subject.
Reset Settings: If you want to start over, click the Reset button at the bottom right of the Develop module panels.
If you are experiencing issues with the Develop module not loading or crashing on launch, Adobe recommends resetting preferences manually or creating a new catalog on your internal drive. Lightroom Classic 12.3 not opening on Mac M1 | Community
Here’s a comprehensive guide to Adobe Lightroom Classic 12.3 (released April 2023). This version introduced several key masking, tethering, and performance improvements. The guide covers interface, importing, organizing, developing, exporting, and new features specific to 12.3. Part 8: How to Install or Update to Lightroom Classic 12
Updating is straightforward, but there are a few caveats.
Step-by-step:
System Requirements (Minimum for 12.3):
Warning: Version 12.3 drops support for macOS 10.15 (Catalina). If you’re on an older Mac, you cannot install this update.
Adobe Lightroom Classic 12.3 is not a flashy billboard update; it is a "mechanic's update." It tightens the bolts on the AI engine, fixes the leaks in the sync pipeline, and adds the legal framework (CAI) for the future of photography.
For the working pro, this version offers a tangible increase in stability and speed. For the hobbyist, the smarter People masks make editing family portraits a five-minute job instead of a thirty-minute chore.
If you are currently on version 11.x or 12.0, 12.3 is the safe harbor—stable enough for production work, modern enough to support the latest mirrorless cameras. Download it, run the installer, and spend less time waiting for the spinning wheel and more time shooting.