Lightroom 5.6 cannot read RAW files from cameras released after 2014 (like the Sony A7IV or Canon R5). You would need to convert those files to DNG format first.
A game-changer for 64-bit systems, allowing you to edit images without having the heavy original RAW files physically connected to your drive. Why 64-bit Architecture Mattered adobe photoshop lightroom 56 final 64 bit c
Allows for off-center vignettes or localized highlights to draw the eye to the subject. Lightroom 5
A one-click fix for skewed horizons or distorted architectural lines. adobe photoshop lightroom 56 final 64 bit c