4 min read Mar 1, 2026

How to Safely Update WordPress Core, Themes, and Plugins

Keeping your WordPress website up to date is essential for performance, security, and compatibility with plugins and themes. This guide explains what…

FimuroHost Team

FimuroHost Team

Technical Writer

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Keeping your WordPress website up to date is essential for performance, security, and compatibility with plugins and themes. This guide explains what updates are, why they matter, and the safest way to update WordPress core, themes, and plugins.


What Is WordPress Update?

WordPress updates include improvements to the core system, security patches, and new features. There are three main types of updates:

✔ Core Updates – Updates to the WordPress software itself
✔ Theme Updates – Updates to your site’s design and layout
✔ Plugin Updates – Updates to added functionality (contact forms, SEO tools, etc.)

Regularly updating ensures your site runs smoothly and stays secure.


Why Updating WordPress Matters

Here’s why you should update regularly:

🔒 Security

New vulnerabilities are discovered all the time. Updates patch these holes before hackers exploit them.

⚡ Performance

Updates often improve speed and efficiency.

📦 Compatibility

Themes and plugins are updated to work with the latest WordPress version.

🛡 Bug Fixes

Updates fix software bugs and improve stability.


Before You Update

Before updating WordPress, take these precautions:

✔ Create a Full Backup

Backup your files and database. If something goes wrong, you can restore your site easily.

✔ Check Plugin and Theme Compatibility

Some themes and plugins may not work with new WordPress versions. Make sure they are compatible or updated.

✔ Enable Maintenance Mode (Optional)

If your site gets traffic during updates, consider a maintenance mode plugin to show a temporary notice.


How to Update WordPress Core

Updating WordPress itself is simple.

Step 1 — Login to WordPress Dashboard

Visit:

https://yourdomain.com/wp-admin

Log in with your admin credentials.


Step 2 — Go to Updates

In the dashboard menu, click:

Dashboard → Updates

Here you’ll see if a new version of WordPress is available.


Step 3 — Click “Update Now”

If there’s a new version, click the Update Now button. The system will download and install the new WordPress release.

After updating, your site will automatically use the latest core version.


How to Update Themes

Keeping themes updated ensures design compatibility and security.

  1. Go to Appearance → Themes

  2. Look for update notifications

  3. Click Update on available themes


How to Update Plugins

Plugins add extra features to your site, and they must stay compatible with WordPress.

  1. Go to Plugins → Installed Plugins

  2. See plugins with update notifications

  3. Click Update Now on each

Alternatively, update all plugins in bulk.


Automatic vs Manual Updates

✔ Automatic Updates

WordPress can automatically update minor releases such as maintenance or security fixes.

Add this to wp-config.php to enable automatic updates:

define('WP_AUTO_UPDATE_CORE', true);

✋ Manual Updates

Major releases and some plugins should be updated manually after testing compatibility.


After Updating WordPress

After updating, check:

✔ Your homepage loads correctly

✔ Pages and posts show without errors

✔ Contact forms and plugins work as expected

✔ Mobile and desktop views look good

If something breaks, restore your backup and troubleshoot.


What If an Update Breaks Your Site?

Here’s how to fix common post-update issues:

⚠ White Screen or Errors

✔ Restore backup

✔ Disable plugins one by one

✔ Activate default theme like Twenty Twenty-Three

✔ Contact support if needed

⚠ Plugin Compatibility Problems

✔ Roll back to a previous version

✔ Check plugin documentation

✔ Replace with alternative plugin


Tips for Smooth Updates

✔ Backup before every update

✔ Update during low traffic periods

✔ Test on staging sites if available

✔ Use a child theme for custom modifications

Keeping your site updated protects it from future issues.


For Support

For any questions or technical assistance, contact our 24/7 support through Live Chat, support tickets, or our official social media pages.


Frequently Asked Questions

Q1. How often should I update WordPress?

You should update WordPress core, themes, and plugins as soon as new versions are available, especially if they relate to security.


Q2. Can updates break my website?

Yes — if plugins or themes aren’t compatible with the new WordPress version. Always backup before updating.


Q3. What happens if I don’t update WordPress?

Outdated WordPress can be vulnerable to hacks, performance issues, and compatibility problems.


Q4. Does FimuroHost provide backup before updates?

Check your hosting plan — many plans include daily backups. If unsure, contact support.


Q5. Can I test updates before applying them on the live site?

Yes — use a staging site to safely test updates before applying them to your live website.

FimuroHost Team

Written by

FimuroHost Team

Technical Writer