As part of the broader 2021 release cycle, v10.4.0 benefits from the hallmark features introduced earlier that year:
The 10.4.0 update focused on stability and expanding hardware support, though it included several quality-of-life improvements for Power users: Adobe Photoshop Lightroom Classic 2021 v10.4.0
A long-requested workflow efficiency, this version finally allowed users to duplicate an entire Collection Set, including all the collections within it, in a single click. As part of the broader 2021 release cycle, v10
Adobe Photoshop Lightroom Classic 2021 (v10.4.0): A Comprehensive Guide Key Features and Enhancements in v10
Released in August 2021, was a pivotal maintenance update in the "version 10" cycle. While it didn't introduce the massive architectural shifts seen in the jump to v11, it refined the performance and camera compatibility for professional photographers working in the Creative Cloud ecosystem. Key Features and Enhancements in v10.4.0
Some users reported that Canon tethering might fail in this version. A common workaround suggested by the Lightroom Queen community is to ensure the Nikon Tethering plugin is actually enabled in the Plug-in Manager, which oddly fixes the Canon connection for some. 10.3 Performance - Adobe Community
To run this version smoothly, your system should meet or exceed these specifications: Minimum Requirement Recommended Intel/AMD with 64-bit & SSE 4.2 (2GHz+) Intel 10th Gen Core i7 or better RAM 16 GB or 32 GB GPU 2 GB VRAM (DirectX 12 / Metal) 4 GB VRAM for 4K displays OS Windows 10 (64-bit) / macOS Catalina Windows 11 / macOS Big Sur Updating and Troubleshooting