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Documentation for Legacy Versions

Forge has existed for years, and you can still easily access builds of Forge for Minecraft versions as old as Minecraft 1.1. There are significant differences between each and every version, and it would be an impossible task to support so many different versions. Therefore, Forge uses an LTS system where a previous major Minecraft version is deemed as “LTS” (Long Term Support). Only the latest version and any current LTS versions will have easily accessible documentation and be included in the version dropdown in the sidebar. However, some older versions were LTS once or the latest version at some point and had documentation written. Links to old sites with documentation for those versions can be found here.

Important

These old documentation sites are for reference purposes only. Do not ask for help with old versions on the Forge discord or the Forge forums. You will not receive support when you are using older versions.

List of Previously Documented versions

Unfortunately, not all versions were used for a significant amount of time, and the documentation for that version may be incomplete. Whenever a new version is released, the documentation from the previous version is copied and adjusted over time to include new and updated information. When a version wasn’t supported for long, the information was never updated. The accuracy percentages represent how much of the information that should have been updated was actually updated.

Version Accuracy Link
1.12.x 100% https://mcforge.readthedocs.io/en/1.12.x/
1.13.x 10% https://mcforge.readthedocs.io/en/1.13.x/
1.14.x 10% https://mcforge.readthedocs.io/en/1.14.x/
1.15.x 85% https://mcforge.readthedocs.io/en/1.15.x/

RetroGradle

RetroGradle is an archival initiative to update the older ForgeGradle 1.x to 2.3 toolchains and their Minecraft versions to use the modern ForgeGradle 4.x and above toolchain. The goal is to preserve all past released versions of Minecraft Forge by moving them to a verifiably working and modern toolchain which is data-driven and not hardcoded for version-specific workflows.

If any developer wishes to contribute to this archival effort, please visit The Forge Project discord server and ask for directions to the designated channel. Please note that this initiative only aims to preserve these old versions for the benefit of the community, not to support developing mods for these old, unsupported versions. There will not be any support for using or developing for unsupported versions.

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