How do I install Spring to Life Backport?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Spring to Life Backport work with?

The listing gives Minecraft 1.21, 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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Spring to Life Backport

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by LarsenR · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric2 builds
Mod loader NeoForge1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.21–1.21.1Newest
Minecraft 1.20.1

Minecraft 1.21–1.21.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.21–1.21.1 · Fabric ⬇ Download for 1.20.1 · Fabric ⬇ Download for 1.21–1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

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

Added animal variations

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

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21, 1.21.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as spring_to_life-neoforge-1.3.3-1.21.1.jar — drop this file into the mods folder
Download size: 1.7 MB
Download link checked 7 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21