Last Modified Sidebar

You can configure your site to show list of last 10 modified or created pages. The date is taken from lastmod attribute of the the page, which represents last modification date of the given page. Hugo determines this value on its configuration (see Hugo Front Matter Dates). The default configuration of top 4 is (only top 4):

git information for given page - date of last revision (commit) in local repository (enableGitInfo muset be configured)
lastmod front matter attribute
modified front matter attribute
date front matter attribute

To switch the side bar on, extend configuration of your site (config.yaml in root folder of your site) of the parameter showLastModifiedSidebar and set it to yes:

params:
  author: Wanderer
  poweredBy: Powered by <a href='http://www.gohugo.io/'>Hugo</a>
  showLastModified: "yes"

If you want to use dates from github repository, add also this configuration:

enableGitInfo: true

Example

This is how to configure your site to take last modification time from lastmod attribute (if defined) with highest priority. Else use default hugo order.

Add this to your config.yaml:

frontmatter:
  lastmod:
    - lastmod
    - :default

Add attribute lastmod to the front matter of the specific page:

---
title: Some Page Title
date: "2021-01-02"
lastmod: "2028-05-22"
---
Page content

The last modification date will be set to 2028-05-22, no matter what git tracks for the file.