Between 2021 and early 2023, Lightroom Classic users suffered from a frustrating phenomenon known informally as "rubber banding." When moving sliders (especially Texture, Clarity, and Dehaze), the image would lag, overshoot, and snap back. It was infuriating.
Adobe Lightroom Classic 12.3 fixed this. The update fundamentally rewrote how the Develop module handles slider inputs. According to Adobe’s engineering blog, they switched to a more efficient threading model for GPU-accelerated adjustments. In practical terms:
Additionally, 12.3 introduced native support for Apple M2 Pro and M2 Max chips. Mac users with the MacBook Pro 14-inch or 16-inch (2023 models) saw export speeds increase by up to 40% compared to running 12.2 under Rosetta emulation. Windows users with NVIDIA RTX 40-series cards also benefited from improved CUDA optimizations. Adobe Lightroom Classic 12.3
As with all incremental updates, version 12.3 expanded the ecosystem’s compatibility. It included support for new cameras such as the Canon EOS R8, Canon EOS R50, and the Nikon Z30, among others. It also added a host of new lens profiles for popular glass from Sony, Nikon, and Canon, ensuring that distortion and vignetting corrections happen automatically and accurately.
The update also addressed several persistent community complaints: Between 2021 and early 2023, Lightroom Classic users
Version 12.3 also streamlined how masks combine. The new "Intersect" mode allows you to combine two mask conditions. For example:
This level of control was previously only possible in Photoshop. Now it’s in the Develop module. Additionally, 12
If you just bought a new camera, Lightroom Classic 12.3 is mandatory. This version added seamless tethering and raw support for:
Additionally, 37 new lens profiles were added, including optics from Sigma, Tamron, and Viltrox.
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