Dev Builds

The development team needs your help to test new features and find and iron out bugs and refine balancing. You can choose from a couple of flavors of test builds that give you access not only to the latest bugs and crashes, but also shiny new features. Please report any problems you find on the normal modpack issue tracker after making sure it has not already been reported. Include your daily version number in the "Your Pack Version" field (e.g. "Daily 572") and any relevant information such as logs or screenshots.

As of June 2025^[1], "Nightly Releases" have been split into Daily Releases and Experimental Releases.

Latest Daily Releases

• Created daily.
• Does not contain any unmerged pull requests (uses the latest non -pre release of a mod)
• Comparable to "alpha" releases for the next pack release
• More stable (than previous nightlies)
• Starting with Daily 501, no more double zips for dailies (exp builds need a new build by Dream before the double zip goes away there). In addition, archives were renamed to java versions 17-25. (May 2026)
• As of Daily 702, a dedicated repository has been created hosting mirrors for downloads, avoiding the need to create a Github account. It is still possible to view the Daily builds workflows with a Github account.

Latest Experimental Builds (requires GitHub account)

• Created manually by Dream
• Contains unmerged pull requests for purpose of testing them in the full pack
• Zeta server runs the latest experimental release

Going between Daily and Experimental releases is discouraged as any new stuff added will be removed when going back to dailies.

Command line interface tool for updating Daily or Experimental releases. Not compatible with worlds made from older Nightly builds (pre-June 2025). Tracks installed mods, downloads changes, and applies config updates using git to merge pack changes while preserving user edits. See the link below for full installation details and features. Available for Windows/Linux/MacOS.

• GTNH Daily Updater by Caedis - GitHub