PHP 8.5 was released recently, on November 20, 2025. For WordPress users, jumping into a newer PHP version means improvements in performance and security — and of course, new PHP versions bring forth new tools and features for developers to play with.
As the engine behind WordPress, keeping your PHP version current is vital. While the latest WP version, WordPress 6.9, fully supports PHP 8.3, the latest PHP versions (PHP 8.4 and PHP 8.5) only have a beta support status. You can always head over to WordPress.org to double-check compatibility for the WordPress version you’re using.
Seravo is also bringing PHP 8.5 to our platform, so that developers can dive in and start testing in staging environments (shadows). Using PHP 8.5 on live (production) websites is not yet recommended due to the aforementioned beta status. However, now is a great time to explore what’s new in PHP 8.5 and ensure your code is ready for the upgrade!
When will PHP 8.5 become available at Seravo?
At Seravo, we are committed to ensuring that the tools available to our customers are fast, secure, and cutting-edge.
Starting in January 2026, PHP 8.5 will become available for testing across all sites hosted on our managed WordPress hosting platform.
While PHP 8.5 is ready for exploration, it is not yet recommended for production use. We encourage developers to test the update in a shadow environment first. By trying out a newer PHP version in a shadow, you can make sure all your site functionalities – forms, plugins, webstore or site layout for example – function perfectly, prior to upgrading your live site.
For a full list of supported PHP versions at Seravo, please visit our knowledge base. If you’re looking for step-by-step instructions on how to perform the PHP update yourself, you’ll find instructions for that too. Alternatively, if you’d prefer a hands-off approach, you can order the PHP upgrade from Seravo, and our WordPress experts will take care of it for you! See our prices for additional services.
PHP 8.5 – New Features
PHP 8.5 introduces several improvements that WordPress developers should keep on their radar. Here are the most significant new features:
- New URI Extension: A built-in tool for handling, parsing, and normalizing URLs securely (compliant with RFC 3986 and WHATWG standards).
- Pipe Operator (
|>): Allows for chaining functions from left to right without the need for temporary variables, significantly improving code readability. - “Clone With” Syntax: Simplifies cloning objects and updating their properties simultaneously (e.g.,
clone $obj with { prop: 'value' }). This is particularly useful when working withreadonlyclasses. - The
#[\NoDiscard]Attribute: Helps prevent bugs by triggering a warning if a function’s return value is ignored (especially useful for methods like those inDateTimeImmutable). - Closures and First-class Callables in Constant Expressions: Enables the use of static closures and functions as attribute parameters or default values for class properties.
- New Array Functions:
array_first()andarray_last()provide a direct, native way to retrieve the first and last elements of an array. - Persistent cURL Share Handles: Reduces the overhead of initializing cURL connections by persisting handles across multiple PHP requests.
- Asymmetric Visibility for Static Properties: Extends the feature introduced in PHP 8.4 (allowing different visibility levels for reading and writing) to include static properties.
- Stack Traces for Fatal Errors: Fatal errors now include a full stack trace, which makes debugging easier and faster.
What else is new in PHP 8.5? For a comprehensive breakdown of all new features and updates, visit the official PHP website.
How to Upgrade PHP at Seravo
Changing the PHP version has been made easy in Seravo’s premium hosting for WordPress:
- Log in to your WordPress site.
- Navigate to the Seravo Plugin settings (Tools > Upkeep).
- Select and activate the desired PHP version.
- Test your site thoroughly.
If you need assistance or prefer not to make the update yourself, Seravo’s WordPress experts are here to help you out. We can check the site’s compatibility and carry out the PHP upgrade for you as an additional service. Order the PHP upgrade with this form or get in touch with us!
Do you have any questions about updating, or would you like to order expert work for your WordPress site? You can always contact our customer service by email at help@seravo.com.