Post-upgrade steps
Congratulations! You have completely upgraded your Drupal installation.
You should now go to your administer > site building > modules page and enable new modules from your upgrade. Be sure to then go to administer > user management > access control to get enable permissions to use that module for different roles.
The last step in an upgrade is to delete or move the following files from your site:
- install.php
- CHANGELOG.txt
- INSTALL.txt
- INSTALL.mysql.txt
- INSTALL.pgsql.txt
- LICENSE.txt
- MAINTAINERS.txt
- UPGRADE.txt
If you have upgraded a test site and are satisfied with the results, you will now need to copy the test site to a live site.
If you have more questions, please consult the Troubleshooting FAQ guide and please don't hesitate to Ask for Help in the Forums.
Another post-upgrade task -- re-index search!
After upgrading from 4.7 to 5.7, I found that several terms returned no search results, but I could confirm that the terms were present in nodes in the site.
I re-indexed the search by clicking the re-index button and changing the search settings to index 100 pages at a time, then clicked the run cron now link in status report several times until 100% of the site was indexed.