How to Safely Update WordPress (Core, Plugins, and Themes)

The safest way to update WordPress is to take a full backup before updating, apply updates one at a time (not all at once), test your site after each update, and have a rollback plan ready in case something breaks. Following this process consistently prevents the vast majority of update-related disasters — broken layouts, crashed sites, and lost functionality.

WordPress updates are essential. They patch security vulnerabilities, fix bugs, improve performance, and add features. But updates also carry risk. A plugin update can conflict with your theme. A theme update can break your page builder layouts. A WordPress core update can deprecate functions that your plugins depend on. And a WooCommerce update can silently break your checkout flow — costing you sales until someone notices.

This guide teaches you how to update safely, every time, so you get the security and performance benefits without the risks. For a broader view of all WordPress maintenance tasks, see our complete maintenance checklist.

Why Updates Matter — The Cost of Not Updating

Outdated WordPress plugins are the number one cause of hacked websites. When a vulnerability is discovered in a plugin, the developer releases a patch. Once that patch is public, the vulnerability is also public — and within days or hours, automated bots begin scanning millions of WordPress sites looking for the unpatched version. Every day you delay applying the update is a day your site is vulnerable to a known, documented, actively exploited security hole.

Beyond security, outdated plugins can cause compatibility issues with newer WordPress core versions, slower performance as older code lacks optimizations present in newer versions, and feature gaps that prevent you from taking advantage of improvements.

For a comprehensive understanding of WordPress security, read our ultimate WordPress security guide.

Step 1: Take a Full Backup

This is non-negotiable. Before updating anything, take a complete backup of your WordPress site — both files and database. If an update breaks your site, a backup lets you restore to the pre-update state within minutes.

Use your backup plugin (UpdraftPlus, BlogVault, BackupBuddy) to create an on-demand backup. Or if you are on a WP Ministry care plan, our daily automated backups already have you covered — and we take an additional backup before every update cycle.

Verify the backup completed successfully. Check that the backup file exists, that it includes both files and database, and that it is stored off-site (not just on the same server as your WordPress installation). A backup on the same server provides no protection against server failures. Read our guide on scheduling automatic WordPress backups.

Step 2: Check for Known Issues

Before applying a major update — especially WordPress core updates and WooCommerce updates — check for known issues.

For WordPress core updates: Check the release notes on wordpress.org/news. Major releases (6.x to 7.x) often include breaking changes. Minor releases (6.5.1 to 6.5.2) are typically security and bug fixes and are safer to apply immediately.

For plugin updates: Check the plugin’s changelog (usually on the plugin’s WordPress.org page under “Changelog” tab). Look for major version changes (e.g., 3.x to 4.x), which are more likely to introduce breaking changes or compatibility issues. Also check the support forum for recent reports of update-related problems from other users.

For WooCommerce updates: WooCommerce major updates (e.g., 8.x to 9.x) deserve extra caution. These often change database schemas, modify checkout behaviour, or alter API functionality. Check the WooCommerce developer blog for migration guides and known issues before applying.

Step 3: Use a Staging Environment (Recommended)

A staging environment is a private copy of your live site where you can test updates without affecting your actual visitors. If an update breaks something on staging, your live site is completely unaffected.

Many managed WordPress hosts (Kinsta, WP Engine, Cloudways, SiteGround) provide one-click staging environments. Some backup plugins (BlogVault, WP Staging) can also create staging copies. Read our detailed guide on setting up a WordPress staging site.

The staging workflow is straightforward. Create a fresh staging copy of your live site. Apply the update on staging. Test the updated staging site thoroughly — check the homepage, key pages, forms, checkout (if WooCommerce), and any functionality that depends on the updated plugin or theme. If everything works, apply the same update to your live site. If something breaks, investigate and resolve on staging before touching your live site.

Staging is especially valuable for WooCommerce stores where a broken checkout directly costs revenue, sites with custom functionality that may depend on specific plugin versions, and sites with complex plugin stacks where interaction effects are unpredictable.

Step 4: Update One at a Time

This is the most important discipline in safe updating. When your WordPress dashboard shows 12 available plugin updates, the temptation is to click “Update All.” Resist it.

If you update all 12 plugins at once and your site breaks, you have no idea which one caused the problem. You would need to deactivate and test all 12 to find the culprit — see our plugin conflict troubleshooting guide.

Instead, update one plugin at a time. After each update, reload your site and verify that everything looks and works correctly. Check the homepage. Check a few key pages. If you run WooCommerce, check the checkout. If everything is fine, proceed to the next update. If something breaks, you know exactly which update caused it.

Recommended Update Order

When multiple updates are available, apply them in this order. First, WordPress core (if a core update is available — apply this before plugin and theme updates to ensure plugins update for the latest core). Second, plugins (one at a time, starting with security-critical updates). Third, your theme (theme updates can affect layout and visual presentation, so apply last and check carefully).

Step 5: Verify After Each Update

After each individual update, verify your site is working correctly. At minimum, check that the homepage loads without errors or visual issues, your primary navigation works, contact forms submit successfully, your site’s most important pages display correctly, and if applicable, your WooCommerce checkout processes test orders.

For more thorough verification, use visual validation — automated before-and-after screenshots that compare your pages pixel-by-pixel before and after the update. This catches subtle issues that manual checking might miss: a widget that shifted 20 pixels, a font that changed weight, a colour that shifted slightly. Our update service includes visual validation on every update cycle for Pro plans and above.

Step 6: Know How to Roll Back

If an update breaks your site and you need to undo it, you have several options.

Restore from backup. The fastest and most reliable rollback. Use your backup from Step 1 to restore your entire site to its pre-update state. This undoes all changes — which means you will need to reapply any other updates you applied after the backup.

Rollback individual plugins. The WP Rollback plugin allows you to revert a specific plugin to a previous version without restoring your entire site. This is useful when you know exactly which plugin caused the problem and want to keep other updates.

Replace via FTP. If you cannot access the admin dashboard because the update crashed your site, connect via FTP and either delete the problematic plugin folder (in /wp-content/plugins/) or rename it (e.g., rename “problematic-plugin” to “problematic-plugin-disabled”). This deactivates the plugin without requiring admin access.

WordPress Auto-Updates: When to Use Them and When Not To

WordPress supports automatic updates for plugins, themes, and core. You can enable auto-updates for individual plugins from the Plugins page in your admin dashboard. WordPress minor core updates (security releases) are auto-updated by default.

When Auto-Updates Are Acceptable

For low-risk sites — personal blogs, portfolio sites, hobby projects — where a temporary breakage is not catastrophic, auto-updates for minor plugin updates can save time. Always keep auto-updates enabled for WordPress core security releases.

When Auto-Updates Are Risky

For business-critical sites, WooCommerce stores, membership sites, and any site where downtime costs money or trust, auto-updates are risky. Auto-updates do not take backups before updating. They do not check for visual regressions. They cannot resolve conflicts. And they apply at whatever time WordPress schedules them — which might be during your peak traffic hours.

For these sites, the disciplined manual process described in this guide — or a professional update service that handles it daily with backups and visual validation — is the safer approach.

How Often Should You Update?

Security patches: Immediately. When a plugin releases a security update, apply it as soon as possible — ideally within 24 hours.

Regular plugin and theme updates: Weekly at minimum. Our Starter care plans update weekly. Our Pro, Business, and WooCommerce plans update daily.

WordPress core major updates: Within a week of release, after checking for known compatibility issues. Let the WordPress community surface any problems for a day or two before applying to production sites.

Frequently Asked Questions

Should I update WordPress core or plugins first?

WordPress core first. Core updates may introduce changes that plugins need to adapt to. If you update plugins first, you might apply a plugin version that expects the new core version — only to find it conflicts with your old core. Update core, then plugins, then theme.

An update broke my site. What do I do?

If you followed this guide and have a backup, restore from the backup. This brings your site back to working order within minutes. If you did not take a backup, try deactivating the recently updated plugin via your admin dashboard (if accessible) or via FTP (if the admin is broken). See our guides on fixing the white screen of death and 500 internal server error for step-by-step recovery instructions.

Can I skip updates and just update every few months?

We strongly advise against this. The longer you delay updates, the higher the risk — security vulnerabilities compound, and major version jumps (applying 6 months of updates at once) are far more likely to cause conflicts than incremental updates. Regular, frequent updates are paradoxically safer than infrequent bulk updates.

How do I update premium plugins that are not on WordPress.org?

Premium plugins typically provide updates through their own license system. Ensure your license key is active and entered in the plugin settings. Updates should then appear in your WordPress dashboard alongside regular plugins. If a license has expired, you will not receive updates — renew it or risk running an outdated, potentially vulnerable version.

Need Expert Help? Let WP Ministry Handle It

Managing WordPress updates is one of the most important — and most time-consuming — maintenance tasks. Doing it properly requires a backup before every cycle, individual testing after each update, visual validation to catch subtle issues, and the expertise to resolve conflicts when they arise.

Our WordPress update service handles all of this, every single day, for every site on a care plan. Daily updates with pre-update backups and visual validation — starting at $79/month on the Pro plan. Our 24/7 team resolves any conflicts before your visitors see a problem.

View our care plans → or call (901) 249-0909.

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