blog_os/blog/templates/rss.xml

<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
    <channel>
        <title>{{ config.title }}</title>
        <link>{{ config.base_url | safe }}</link>
        <description>{{ config.description }}</description>
        <generator>Zola</generator>
        <language>{{ lang }}</language>
        <atom:link href="{{ feed_url | safe }}" rel="self" type="application/rss+xml"/>
        <lastBuildDate>{{ last_updated | date(format="%a, %d %b %Y %H:%M:%S %z") }}</lastBuildDate>
        {% for page in pages %}
            <item>
                <title>{{ page.title }}</title>
                <pubDate>{{ page.date | date(format="%a, %d %b %Y %H:%M:%S %z") }}</pubDate>
                <link>{{ page.permalink | safe }}</link>
                <guid>{{ page.permalink | safe }}</guid>
                <description>{{ page.content }}</description>
            </item>
        {% endfor %}
    </channel>
</rss>