# Ghost v4.36.1 — Release & Upgrade Intelligence
- **Product:** Ghost (https://ghost.org)
- **Version:** v4.36.1
- **Released:** Feb 16, 2022
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/ghost/updates/v4.36.1/

## Executive Summary (TL;DR)
Ghost v4.36.1. Source highlight: 🐛 Fixed "Invalid mobiledoc structure" errors that could occur when saving posts with header cards - Kevin Ansfield

## Bug Fixes
- 🐛 Fixed "Invalid mobiledoc structure" errors that could occur when saving posts with header cards - Kevin Ansfield