: 1.16 changed how Redstone dust connects to blocks (the "dot" vs "cross" visual and logic). Some of your 1.14 contraptions may stop working. 📋 Recommendation
Updating a world or server across these versions is a massive jump in game logic and world generation.
If this ZIP is a , do not overwrite your 1.14 original yet. Extract the ZIP to your saves folder.
: Your 1.14 Nether is likely a barren wasteland. Upgrading to 1.17 transforms the Nether into a vibrant dimension with biomes like Crimson Forests and Basalt Deltas.