WordPress is continuously evolving. New features, security patches, and technical improvements are part of the system's normal lifecycle.
Nevertheless, WordPress updates are postponed or completely ignored by many website operators. The most common reason is understandable: The website works – and after an update, something might no longer work.
However, permanently avoiding updates is not a solution. The longer WordPress, plugins, or themes are not updated, the greater the security risks and potential compatibility issues become.
This guide explains why regular WordPress updates are necessary, which components need to be updated, and how to perform updates in a controlled manner without taking unnecessary risks.
What actually needs to be updated in WordPress?
A WordPress website consists of several components that are developed independently of each other.
Essentially, this concerns three areas:
- WordPress Core
- Plugins
- Themes
WordPress Core Updates
The WordPress core is the actual basic system. Updates fix bugs, close known security vulnerabilities, improve the technical foundation, and occasionally introduce new features.
A distinction is made between minor maintenance and security updates and major version updates.
Security updates in particular should not be postponed unnecessarily.
Plugin updates
Plugins extend WordPress with features such as contact forms, SEO functions, online stores, backups, or security features.
Because plugins come from different developers, they are updated independently of WordPress core.
Outdated plugins can become a significant security risk, especially if known vulnerabilities are not patched.
At the same time, a plugin update should not be carried out completely blindly: For important websites, it is recommended to consider backup and compatibility beforehand.
Theme Updates
The WordPress theme being used also needs updates. These can fix bugs, ensure compatibility with new WordPress or PHP versions, and resolve security issues.
Particularly important: If changes were made directly in the main theme, these can be overwritten during an update. Individual customizations should therefore be implemented cleanly, for example via a child theme.
Why are WordPress updates so important?
1. Safety
The most important reason for regular updates is security.
If vulnerabilities are discovered in WordPress, a plugin, or a theme, developers frequently provide corresponding security updates.
The problem: As soon as a vulnerability is known, it can also be systematically exploited by automated attacks.
An outdated website can therefore be vulnerable, even though it continues to function completely normally on the outside.
2. Compatibility
WordPress does not run in isolation. The system works together with PHP, a database, themes, and various plugins.
If you do not update individual components over the years, you increase the risk that they are no longer compatible with newer versions of other components.
This can happen, for example, if an older extension requires a PHP version that should no longer be used on modern server environments.
3. Stability and bug fixes
Updates do not only contain new features. Developers also use them to fix bugs discovered during operation.
Therefore, a current version can run more stable than an installation that is several years old.
4. New and Improved Features
WordPress, themes, and plugins are continually being developed. Updates can improve usability, performance, and features.
However, new features are not the most important reason for updates. For a corporate website, Security, compatibility, and stability clearly in the foreground.
What happens if WordPress is not updated?
A website doesn't go down automatically just because it's missing a few updates. That is precisely why the problem is often underestimated.
An outdated WordPress installation can appear to run smoothly for months. In the background, however, the technical gap between the deployed components and current versions is growing.
Possible consequences include:
- unpatched vulnerabilities
- Issues with newer PHP versions
- Plugin and theme incompatibilities
- Errors after later major update jumps
- increasing maintenance effort
Postponing updates for one or two years may require handling several major version jumps at once later. This is usually riskier than a continuously maintained installation.
How often should WordPress be updated?
A rigid rule like „update WordPress every Tuesday“ is not necessary. However, updates should be checked regularly and not ignored for months.
How quickly an update should be installed also depends on its importance.
- Security updates: Review and install as soon as possible
- minor maintenance updates: perform regularly
- major version updates: perform in a controlled manner with a prior backup
- critical plugins: Pay special attention to impacts and compatibility
With a WooCommerce store or a mission-critical website, you should proceed with more caution than with a small personal website.
Do automatic WordPress updates make sense?
WordPress can install various updates automatically. This can be useful, but it is not the best solution for every website and every component.
For smaller security and maintenance updates, automatic updates can reduce the risk of important patches being forgotten.
For more complex websites, WooCommerce stores, or extensive plugin setups, larger updates should instead be carried out in a controlled manner.
The decisive point is not whether updates are carried out automatically or manually, but whether it is checked afterwards that the website continues to function correctly.
Before the WordPress update: Check backup
Before a major update, a current backup should be available.
This should take into account both the website files and the database.
However, a backup is only truly useful if it is known how to restore a functioning website from it.
Find out more in our guide Backup strategies for SMEs .
How to properly perform WordPress updates
For a typical corporate website, a structured approach is recommended.
1. Check backup
Make sure a current backup is available before making major changes.
2. Check for available updates
Do not blindly update everything at once. First, check which components are affected and whether major version jumps are pending.
Perform updates in a controlled manner
With several critical components, it can be useful to perform updates incrementally. This makes it easier to trace a potential error back to a specific change.
4. Test website afterwards
After the updates, you should not only check whether the homepage is still displayed.
Check in particular:
- Navigation and important subpages
- Contact forms
- Mobile view
- Login and Backend
- WooCommerce cart and checkout, if present
- mission-critical functions
What to do if a WordPress update fails?
Even with a careful approach, an update can cause problems. For example, a plugin can conflict with a new WordPress version or another extension.
It is then important not to make further changes indiscriminately.
We explain in detail which steps are useful in the event of a white screen, an HTTP 500 error, a hanging maintenance mode, or a backend that is no longer accessible at:
WordPress update failed? Causes & Solutions
What role does hosting play in WordPress updates?
Good hosting doesn't prevent every plugin or theme conflict. However, the hosting environment creates the technical foundation on which WordPress is run and updated.
This includes, for example:
- current PHP versions
- sufficient resources
- high-performance memory
- regular backups
- Error logs for analysis
At CURIAWEB, WordPress websites are provided with flexible PHP versions, NVMe storage, CloudLinux, and daily backups, among other features.
More information: WordPress Hosting at CURIAWEB .
Updates are only one part of WordPress maintenance
Maintaining a WordPress website means more than occasionally clicking „Update“.
Backups, functional checks, security measures, and website monitoring are also part of proper operation.
We have summarized what SMEs actually need here:
WordPress Maintenance & Support for SMEs
Conclusion: Update WordPress regularly and in a controlled manner
Regular WordPress updates are not an annoying extra task, but a fundamental part of secure and stable website operations.
Postponing updates indefinitely just because the website is currently working simply shifts the problem to the future. As the distance between versions grows, security and compatibility risks increase.
The better strategy is therefore: update regularly, back up beforehand, and then test.
This is how WordPress, plugins, and themes stay up to date without unnecessarily turning updates into a risk.
