If the site config.toml file sets generate_feed = true, then Zola will
generate a feed file for the site, named according to the feed_filename
setting in config.toml, which defaults to atom.xml. Given the feed filename
atom.xml, the generated file will live at base_url/atom.xml, based upon the
atom.xml file in the templates directory, or the built-in Atom template.
feed_filename can be set to any value, but built-in templates are provided
for atom.xml (in the preferred Atom 1.0 format), and rss.xml (in the RSS
2.0 format). If you choose a different filename (e.g. feed.xml), you will
need to provide a template yourself.
Only pages with a date will be available.
The feed template gets five variables:
config: the site configfeed_url: the full url to that specific feedlast_updated: the most recentupdatedordatefield of any postpages: see page variables for a detailed description of what this containslang: the language code that applies to all of the pages in the feed, if the site is multilingual, orconfig.default_languageif it is not
Feeds for taxonomy terms get two more variables, using types from the taxonomies templates:
taxonomy: of typeTaxonomyConfigterm: of typeTaxonomyTerm, but withoutterm.pages(usepagesinstead)
You can also enable separate feeds for each section by setting the
generate_feed variable to true in the respective section's front matter.
Section feeds will use the same template as indicated in the config.toml file.
Section feeds, in addition to the five feed template variables, get the
section variable from the section template.
Enable feed autodiscovery allows feed readers and browsers to notify user about a RSS or Atom feed available on your web site. So it is easier for user to subscribe. As an example this is how it looks like using Firefox Livemarks addon.

You can enable posts autodiscovery modifying your blog base.html template adding the following code in between the <head> tags.
{% block rss %}
<link rel="alternate" type="application/rss+xml" title="RSS" href="{{ get_url(path="rss.xml", trailing_slash=false) }}">
{% endblock %}
You can as well use an Atom feed using type="application/atom+xml" and path="atom.xml".
All pages on your site will refer to your post feed.
In order to enable the tag feeds as well, you can overload the block rss using the following code in your tags/single.html template.
{% block rss %}
{% set rss_path = "tags/" ~ term.name ~ "/rss.xml" %}
<link rel="alternate" type="application/rss+xml" title="RSS" href="{{/* get_url(path=rss_path, trailing_slash=false) */}}">
{% endblock rss %}
Each tag page will refer to it's dedicated feed.