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 Adobe Photoshop Lightroom Classic 2021 v10.4.0
If you are still using an older version of Lightroom Classic, you can update to v10.4.0 via the Adobe Creative Cloud desktop app. Released in August 2021, was a pivotal maintenance