Check out this overview of the 41.78 update to see the specific sandbox changes and technical fixes in action:
The v41.78 patch series focused on fine-tuning and adding highly requested sandbox customisation options: Project.Zomboid.v41.78.9.rar
Because v41.78 is the stable standard, it supports a massive library of mods that enhance realism and performance: Check out this overview of the 41
: Popular mods add details like openable trunks and doors to world-spawned cars to increase atmosphere. Project.Zomboid.v41.78.9.rar
: Added the massive metropolitan city of Louisville to the North-East of the map.
: Introduced new player models, unique 3D models for weapons and tools, and a wider variety of clothing.
: Zomboid Lite and other texture packs optimize assets for better performance on various hardware.