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I sometimes modify old articles to add new information and I was looking for a simple way to make them appear on the site and the RSS feed, without modifying my theme:

All you have to do is add a lastmod attribute with the update date to the article metadata:

``yaml lastmod: “2023-08-22

Then modify the site's frontmatter conf, in the _.toml_ or _.yml_ at the root, to give this **lastmod** attribute priority over the **date** attribute:

yaml
frontmatter:
  date:
  - lastmod
  - date

[frontmatter]
  date = ['lastmod', 'date']

Some sources:

• Modifying your front matter: https://gohugo.io/getting-started/configuration/#configure-front-matter
• Articles that go much further in their modifications, using the git update date, etc. (and modify their theme to do so):
  • https://makewithhugo.com/add-a-last-edited-date/
  • https://mertbakir.gitlab.io/hugo/last-modified-date-in-hugo/