Spring to Life Backport
The Spring to Life Backport mod is a Fabric and NeoForge mod trying to bring back some features of the 1.21.5 game drop "Spring to Life" to Minecraft 1.21.1 to allow the features to be used in modpacks relying on mods not available for newer versions.
Current Features:
Entities
- New Chicken Variants (Warm & Cold Chicken)
- New Cow Variants (Warm & Cold Cow)
- New Pig Variants (Warm & Cold Pig)
(All including drops, spawning and breeding behaviour)
Items
- New Egg Variants (Blue Egg, Brown Egg) with recipes, obtaining and usage
Blocks
- Leaf Litter
- Bush
- Firefly Bush
- Short Dry Grass
- Tall Dry Grass
- Cactus Flower
(All including world generation and other properties)
Worldgen
- Fallen trees
- Camels spawn in desert biomes
Particles
- Leaves now spawn particles descending slowly to the ground
Other
- Lodestone recipe changed
- Lodestone generates as loot in ruined portal chests

Attributions:
Walking on Dry Leaves.wav by ChamoneSteyn -- https://freesound.org/s/542221/ -- License: Attribution 4.0
Field ambience 01.wav by szelestamas -- https://freesound.org/s/620099/ -- License: Creative Commons 0
CRICKETS - 2 by SamuelGremaud -- https://freesound.org/s/437027/ -- License: Creative Commons 0
The six new animal variants based on the ones added in 1.21.5: Warm/Cold Pig, Warm/Cold Cow and Warm/Cold Chicken
Patches of Dry Grass blocks as generated in a badlands biome, based on the spawning behaviour of these blocks in 1.21.5
Naturally generated cactus flower
Leaves now spawn leaf particles slowly falling to the ground
Generates fallen trees in the world, sometimes decorated with mushrooms and vines