OpenSHA Beta Testing

This page provides experimental versions of OpenSHA applications for beta testing. Stable production versions of OpenSHA are released on the GitHub releases page

OpenSHA January 2026 Release

Unlike previous releases, there are two variants for this OpenSHA beta release. This release coincides with the OpenSHA server migration. Detailed instructions for beta testing, release notes, and tutorials for new applications are available in the README found in beta archives. See the Downloads table below.

OpenSHA April 2025 Release

Resources

Please refer to the following resources for the release schedule and instructions on how to engage with OpenSHA software and provide feedback.

• Release Overview
• Beta Testing Instructions
• Feedback Form
• Introduction to OpenSHA (2018)

Downloads

URL	Size	MD5	Release Date
(latest) opensha/release/opensha-26.1.0-beta.zip	x MB	MD5: x	Released December 17, 2025
opensha/release/opensha-25.4.1-beta.zip	459 MB	MD5: 4b4a66a24bd04553bd438c3bf7fc3253	Released March 25, 2025
opensha/release/opensha-25.4.0-beta.zip	562 MB	MD5: 941ac69c08fed8b5966a788c955d1f78	Released March 17, 2025