Updates patch security holes and bugs, but a careless update can break a live site. A safe routine means backing up first, updating in the right order, and verifying afterwards.
Prepare Before Updating
- Take a full backup of files and the database.
- Note your current PHP version and confirm the new release supports it.
- Read the changelog for major plugin or theme updates to spot breaking changes.
- Update during low-traffic hours so any downtime affects fewer visitors.
Update in the Right Order
Apply updates one layer at a time and check the site between each:
- Update plugins first, ideally one at a time for critical ones.
- Update the theme next, but only after backing up any customizations.
- Update WordPress core last.
If you use a child theme, your customizations survive the parent theme update; if you edited the theme directly, those changes will be lost.
Verify Afterwards
- Load the home page and several inner pages.
- Test forms, checkout, and the login flow.
- Check the browser console for new JavaScript errors.
- Clear any caching plugin so visitors see the updated site.
| Layer | Risk | Action if it breaks | |---|---|---| | Plugin | Medium | Roll back that plugin | | Theme | Medium | Restore theme from backup | | Core | Low to medium | Restore full backup |
Enabling automatic updates for minor core releases is safe and keeps security patches current without manual effort.