def METHOD_NAME(release_info):
    """Flattens version table"""
    flattened = []
    for release in release_info:
        isPreview = release.get("isPreview", False)
        for k, v in release.get("patchVersions", {}).items():
            item = {"version": k, "upgrades": v.get("upgrades", []), "isPreview": isPreview}
            flattened.append(item)
    return flattened