Sometimes it is necessary to update the Pi-hole software because the new version has been updated, and so on.
You will see this notification at the bottom of the Pi-hole management interface:
You can manually update it by logging into the Raspberry Pi using VNC or SSH, and then run
And this version will be updated:
You can set up a script to run
pihole -upUse cron jobs automatically from time to time.
crontab -eThen add at the bottom
0 6 * * * pihole -up
to run it every day at 6am.