# Ghost v6.0.3 — Release & Upgrade Intelligence
- **Product:** Ghost (https://ghost.org)
- **Version:** v6.0.3
- **Released:** Aug 13, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/ghost/updates/v6.0.3/

## Executive Summary (TL;DR)
Ghost v6.0.3. Source highlight: 🐛 Fixed ActivityPub `/ghost/api/admin/site/` access with separated admin setup (#24630) - Kevin Ansfield

## Bug Fixes
- 🐛 Fixed ActivityPub `/ghost/api/admin/site/` access with separated admin setup (#24630) - Kevin Ansfield
- 🐛 Fixed Instagram username validation logic to accept usernames that end with underscore ("_") (#24541) - Mike Bifulco