diff --git a/CHANGELOG.md b/CHANGELOG.md
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+# Changelog
+
+All notable changes to **OrgExplorer** are documented in this file.
+
+This project follows a versioned release history. Features listed below describe the initial public release.
+
+## [1.0.0](https://github.com/AOSSIE-Org/OrgExplorer/releases/tag/v1.0.0) - 2026-10-25
+
+### Added
+- Organization overview with key GitHub organization and repository information.
+- Repository insights, including stars, forks, watchers, and activity metrics.
+- Contributor analytics to explore contributions across repositories.
+- Repository comparison and ranking using repository metrics.
+- Interactive charts and visualizations for exploring organization data.
+- GitHub REST API integration for public organization and repository data.
+- Optional GitHub Personal Access Token (PAT) support for authenticated, GraphQL-powered insights.
+- Organization and repository navigation for exploring related data.
+- Dark mode support.
+- Persistent organization selection.
+
+### Notes
+- This is the first public release of OrgExplorer.
+- Future releases may expand analytics, visualizations, and user-requested features.
+
+[1.0.0]: https://github.com/AOSSIE-Org/OrgExplorer/releases/tag/v1.0.0
diff --git a/README.md b/README.md
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 ---
 
+## 🚀 Latest Release
+
+**OrgExplorer v1.0.0 is here!**
+
+Explore GitHub organizations, analyze repositories, visualize contributor networks,
+and discover organization insights.
+
+[View Release Notes](https://github.com/AOSSIE-Org/OrgExplorer/releases/tag/v1.0.0)
+---
+
 **OrgExplorer** transforms GitHub organizations into interactive, visual intelligence dashboards. Explore repository relationships, contributor networks, activity trends, risk metrics, and organizational health—all without leaving your browser.
 
 ### Key Insights