StepupFixer - Fixing Auto-Jump in Minecraft

This mod addresses the issue with the automatic jump system in the vanilla version of the game. It prevents unnecessary jumps in situations where the character wouldn't be able to stand on the block they're trying to jump to. At the same time, the mod ensures that automatic step-up onto blocks works correctly when it's actually possible.

Essentially, this is a comprehensive fix for the built-in auto-jump feature, making it intelligent and convenient to use.