Verified and tested on 8.4.x-dev, checked with the latest patch change-links-2545520-94.patch in #101 comment.
Here are the test observations:
Before applying the patch:
- The message shows for available updates on /admin/reports/status
"There is a security update available for your version of Drupal. To ensure the security of your server, you should update immediately! See the available updates page for more information and to install missing updates."
- The hyperlink present only on "Available updates"
After applying patch in #101:
- The message appears as:
"There is a security update available for your version of Drupal. To ensure the security of your server, you should update immediately! See the update page for more information and to install manual updates."
- The hyperlink present only on "Manual updates"
- When user click the link 'manual updates', the end-user is taken to a page titled Update.
Screenshots attached