How often should you perform website security updates?

You should check for website security updates at least once a week, apply critical security patches within 24 to 72 hours of their release, and handle major version upgrades on a planned monthly or quarterly cycle after testing them on staging. For most WordPress sites, that means letting minor core releases install automatically, reviewing plugin and theme updates weekly, and treating any update labelled as a security fix as urgent rather than routine.

The right rhythm depends on what you are updating, how risky the change is, and how much your site matters to your business. This article breaks down a sensible update schedule for each layer of a website, from the CMS and plugins down to PHP and the server operating system, and shows you how to automate the safe parts so the risky parts get the attention they deserve.

Why Update Frequency Matters

When a vulnerability is fixed in a popular plugin or framework, the fix itself tells attackers exactly where the weakness was. Automated scanners then start probing websites for the unpatched version, often within hours or days of public disclosure. The window between a patch being released and your site being targeted is short, and it keeps getting shorter.

Waiting until "the next maintenance day" a month from now leaves you exposed during the period when attacks are most likely. On the other hand, installing every update the moment it appears, without any testing, can break your site. A good schedule balances those two risks.

A Recommended Update Schedule at a Glance

Here is a baseline you can adapt:

• Critical security patches (actively exploited or rated high severity): Within 24 to 72 hours, or sooner if exploitation is widespread.
• Minor CMS releases (for example, WordPress 6.x.1 to 6.x.2): Automatically, as soon as they are released.
• Plugin and theme updates: Review and apply weekly.
• Major CMS releases (for example, WordPress 6.8 to 6.9): Within two to four weeks, after testing on staging.
• PHP or runtime version upgrades: Plan them before the current version reaches end of life, and test thoroughly.
• Server operating system security packages: Automatically for security updates, with a weekly or monthly check.
• Full update and compatibility review: Monthly.

Updating Each Layer of Your Website

A website is a stack of software, and each layer has its own release pattern.

CMS Core

For WordPress, the core team publishes two kinds of releases:

1. Minor releases: Maintenance and security fixes, such as 6.x.1. These are designed to be safe and are applied automatically by default on most installations.
2. Major releases: New features and larger changes, such as 6.9. These are more likely to affect themes and plugins.

Keep automatic minor updates enabled. If you want your site to also install major versions automatically, you can set this in wp-config.php, above the /* That's all, stop editing! */ line:

// Options: true (all updates), 'minor' (default), or false (none).
define( 'WP_AUTO_UPDATE_CORE', 'minor' );

Most sites should leave this at 'minor' and handle major releases manually after testing. Since WordPress 5.6, site owners can also opt into major core auto-updates from Dashboard > Updates.

Plugins and Themes

Plugins and themes are where most WordPress vulnerabilities are found, so they deserve the most attention. A weekly review works well for most sites:

• Check Dashboard > Updates or Plugins > Installed Plugins for available updates.
• Read the changelog, especially for anything mentioning "security", "fix", or "vulnerability".
• Apply security fixes immediately, and routine updates after a quick check.

WordPress supports per-plugin auto-updates. On the Plugins screen, click Enable auto-updates next to any plugin you trust to update safely. Good candidates are well-maintained plugins with a strong track record and a small footprint. Keep auto-updates off for complex plugins that deeply affect your site, such as page builders or e-commerce extensions, and update those on staging first.

If you manage sites in code, you can control auto-updates with a filter in a custom plugin or must-use plugin:

<?php
/**
 * Auto-update only specific, trusted plugins.
 */
function sajjad_auto_update_selected_plugins( $update, $item ) {
    $trusted = array(
        'wordfence',
        'wordpress-seo',
    );

    if ( isset( $item->slug ) && in_array( $item->slug, $trusted, true ) ) {
        return true;
    }

    return $update;
}
add_filter( 'auto_update_plugin', 'sajjad_auto_update_selected_plugins', 10, 2 );

Returning $update for everything else preserves whatever the site owner has chosen in the dashboard.

Premium Plugins and Themes

Commercial plugins often update through their own license system. If your license expires, updates silently stop, and you may be running a vulnerable version without realising it. Add license renewal dates to your calendar and check premium extensions manually each week.

PHP and Runtime Versions

PHP branches receive active support and then a period of security-only fixes before reaching end of life. Once a version is end of life, it receives no more security patches at all. Check the official PHP supported versions page, and plan your upgrade well before your current version drops off it.

Unlike plugin updates, PHP upgrades are a project rather than a routine task:

1. Check compatibility: Use a staging copy and a static analysis tool such as PHPCompatibility for PHP_CodeSniffer, or run your test suite on the new version.
2. Update plugins and themes first: Older extensions are the most common source of PHP upgrade problems.
3. Switch PHP on staging: Test key pages, forms, checkout, and admin screens.
4. Switch production: Most hosts let you change PHP versions from their control panel.
5. Monitor error logs: Watch for new warnings or fatal errors over the following days.

The same principle applies to Node.js, Python, Ruby, or any other runtime your site uses: stay on a supported release line and upgrade before the end-of-life date.

Server Operating System

If you run your own VPS or dedicated server, the operating system needs security updates too. On Ubuntu and Debian, unattended-upgrades can install security updates automatically:

sudo apt update
sudo apt install unattended-upgrades
sudo dpkg-reconfigure --priority=low unattended-upgrades

This enables automatic installation of packages from the security repository. Some updates, such as kernel patches, require a reboot to take effect. You can check whether one is pending:

[ -f /var/run/reboot-required ] && cat /var/run/reboot-required

On RHEL, Rocky Linux, or AlmaLinux, the equivalent is dnf-automatic:

sudo dnf install dnf-automatic
sudo systemctl enable --now dnf-automatic-install.timer

On managed WordPress hosting, the provider usually handles OS and server software updates for you. Confirm this in writing so you know exactly which layers are your responsibility.

JavaScript and Application Dependencies

For custom-built sites and headless front ends, dependencies in package.json, composer.json, or requirements.txt need regular attention too. Run audits weekly or on every build:

npm audit
composer audit

Tools like GitHub Dependabot or Renovate can open pull requests automatically when dependency updates are available, which fits neatly into a weekly review.

How to Know When a Critical Update Is Released

Waiting for your weekly review is fine for routine updates, but you want to hear about critical ones immediately. Some ways to stay informed:

• Security plugin alerts: Wordfence, Solid Security, and similar plugins can email you when an installed plugin has a known vulnerability.
• Vulnerability databases: Services such as WPScan and Patchstack track WordPress plugin and theme vulnerabilities, and some offer alerts for the extensions you use.
• Your host: Many managed WordPress hosts notify customers about serious vulnerabilities and sometimes patch them at the server level.
• Vendor newsletters and changelogs: Subscribe to updates for your most important plugins.
• Dependency tools: Dependabot and similar tools flag vulnerable packages in code repositories.

When an alert arrives, check whether you use the affected version, read the advisory, and apply the fix or a temporary mitigation, such as deactivating the plugin, as quickly as possible.

A Safe Update Routine

Frequent updates are only sustainable if they are safe. A simple routine reduces the risk of breaking your site:

1. Take a backup: Make sure you have a fresh backup of files and database before updating anything.
2. Read the changelog: Look for security fixes, breaking changes, and new requirements.
3. Test on staging: For major releases and complex plugins, apply updates to a staging copy first.
4. Update in small batches: Updating one or a few items at a time makes it easy to identify the cause of any problem.
5. Check key pages: Load the homepage, a post, forms, the checkout, and the admin area.
6. Monitor afterwards: Watch your error logs and uptime monitoring for the next day.
7. Record what you did: A short log of dates and versions helps with troubleshooting and audits.

With WP-CLI, you can check and update from the command line:

wp core check-update
wp plugin list --update=available
wp plugin update --all --dry-run
wp plugin update wordfence

Adjusting the Schedule to Your Site

The baseline schedule fits most small and medium websites, but you should adjust it for your circumstances.

Higher-risk sites need faster updates: Online stores, membership sites, and anything handling personal or payment data should apply security patches within a day where possible and review updates more than once a week.

Simple brochure sites can rely more on automation: A small site with few plugins can safely use auto-updates for most extensions and a lighter monthly review.

Large or complex sites need more testing: Sites with custom code, many integrations, or high traffic should route all non-critical updates through staging and automated tests.

Compliance requirements may set the pace: Standards such as PCI DSS expect critical patches to be applied promptly and other patches on a documented, risk-based schedule.

Signs You Are Not Updating Often Enough

• You regularly see a long list of pending updates in the dashboard.
• Some plugins have not been updated in months because "they might break something".
• Premium plugin licenses have lapsed.
• Your PHP version is close to or past end of life.
• You only find out about vulnerabilities when your host or a scanner tells you.

If any of these sound familiar, schedule a catch-up session, take a full backup, and work through the backlog on staging before returning to a regular weekly routine.

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FAQ: Website Security Update Frequency

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Conclusion

A practical rule of thumb is to check for updates weekly, apply critical security patches within a day or two, let minor core releases install automatically, and plan major upgrades after testing on staging. Each layer of your website, from plugins to PHP to the server operating system, has its own rhythm, and your schedule should reflect all of them.

Automate the safe, routine parts so your attention is free for the updates that carry real risk. With backups before every change, a staging site for bigger upgrades, and alerts for critical vulnerabilities, frequent updates become a quick, low-stress habit instead of something you put off until a problem forces your hand.