PHP.netwill end support for PHP 8.2 on 31 December 2026. As a result, Acquia will end support for PHP 8.2 in favor of PHP 8.4 on 1 October 2026. At that time, we will remove PHP 8.2 and convert all remaining environments to PHP 8.4.. This deadline will not be extended as it is critical that your application is upgraded to ensure its continued security.
PHP 8.4 provides significant improvements in performance and security over previous versions. We strongly recommend that customers move to PHP 8.4 as soon as possible after appropriate testing.
Acquia Cloud Platform and Acquia Site Factory customers can perform self-service upgrades until 1 October 2026. This deadline is important because of several factors:
Many of our customers choose to allow us to perform their PHP upgrade rather than performing self-service upgrades. We do not advise this approach, but we will end up completing some of these changes as managed upgrades.
For customers who have compliance certifications with requirements related to privacy and data security, it is crucial that these upgrades are completed before PHP.net's end-of-life so that those customers meet their compliance deadlines.
Further, we want to ensure that all customers are upgraded to PHP 8.4 before PHP.net ends support for PHP 8.2, which in turn can leave customer's files and data insecure. We anticipate that security attacks will begin against PHP 8.2 immediately after security support from PHP.net ends. As a result, we are obligated to ensure that all customers and internal systems are updated and PHP 8.2 is removed from our platform prior to the PHP.net deadline.
Important
Any Acquia-hosted application that is not running at least PHP 8.3 will be upgraded.
Any application that is already using PHP 8.3 or newer will not be upgraded.
FAQs
Q: Why is Acquia reaching end-of-life for PHP 8.2 on 1 October 2026 if the PHP community is not ending security support until 31 December 2026?
Acquia needs to have all applications upgraded to PHP 8.3 or later on the platform prior to the PHP community ends support on 31 December 2026 for security purposes. Since many of our customers have high traffic events near the end of the year, such as financial closing, business/sales season spikes, holiday traffic, administrative end of year events, school registration or finals, we find that waiting to perform these events later in the year affects customers negatively. As a result, we recommend customers to perform these upgrades themselves on or before 1 October 2026. After that, we will move forward with managed upgrades. We are leaving time between the end of our self-upgrade window and the holidays so that we have plenty of time to assist customers who run into issues with their managed upgrades prior to their busy holiday period.
Q: Is there any action required on my part?
All environments currently on PHP 8.2 must be upgraded to PHP 8.3 or newer before 1 October 2026. Prior to that date, you should upgrade your non-production applications to test for any incompatibilities in your application. We recommend that you begin with your non-production upgrades as soon as possible so that you have time to test before upgrading your production application. Once you have resolved any incompatibilities, upgrade your production environment before the end-of-life deadline. For instructions on how to change your PHP version, see Configuring PHP settings.
Acquia Cloud applications that will be on PHP 8.2 after 1 October 2026 will be upgraded to PHP 8.4 automatically as part of the managed upgrade process.
Q: Can I upgrade to PHP 8.3 instead of PHP 8.4?
You can change the PHP version for your application(s) in the Cloud Platform user interface at any time by following the instructions on Configuring PHP settings. You can upgrade your application(s) to PHP 8.2 or later prior to 1 October 2026. After 1 October 2026, you cannot set PHP 8.2 as the PHP version for your application(s).
PHP 8.4 is currently the latest PHP version on the Acquia Cloud platform. We will perform managed upgrades for all applications remaining on PHP 8.2 on 1 October 2026 to PHP 8.4. You cannot choose the PHP version we manage upgrade your application(s) to on 1 October 2026.
Q: How would Acquia recommend I proceed with preparing for my PHP upgrade?
We advise upgrading your development environment first to detect any potential problems in your codebase, and then use your staging environment to test any changes that might need to be carried over before upgrading your production environment.
Q: I am using Acquia Site Factory. How do I upgrade?
All Cloud applications can manage their PHP versions directly in the Cloud Platform user interface, including Acquia Site Factory. For instructions, see Configuring PHP settings.
Q: Will there be any downtime for my non-production environments or production application?
Some connections will experience a brief service interruption as PHP restarts. Any content cached by Varnish will not be impacted. Code changes may be required to ensure that your production application operates as expected after you upgrade to PHP 8.4.
Q: Are there any tools that can assist with this migration from PHP 8.2 to PHP 8.4?
PHP_CodeSnifferand PHPCompatibility are the two external tools that can be used to audit codebases for migration from PHP 8.2 to PHP 8.4.
Q: Is the upgrade to PHP 8.4 available?
Yes, PHP 8.4 is currently available on the Acquia Cloud Platform as the latest available PHP version. Customers can upgrade their application(s) to PHP 8.4 at any time. For instructions on how to upgrade the PHP version for your application, see Configuring PHP settings.
Q: I have some additional questions and concerns. Who can I contact?
If you have any questions about this or any other maintenance, contact Acquia Support.
End-of-life for PHP 8.2 in favor of PHP 8.4 FAQ
PHP.netwill end support for PHP 8.2 on 31 December 2026. As a result, Acquia will end support for PHP 8.2 in favor of PHP 8.4 on 1 October 2026. At that time, we will remove PHP 8.2 and convert all remaining environments to PHP 8.4.. This deadline will not be extended as it is critical that your application is upgraded to ensure its continued security.
PHP 8.4 provides significant improvements in performance and security over previous versions. We strongly recommend that customers move to PHP 8.4 as soon as possible after appropriate testing.
Acquia Cloud Platform and Acquia Site Factory customers can perform self-service upgrades until 1 October 2026. This deadline is important because of several factors:
Many of our customers choose to allow us to perform their PHP upgrade rather than performing self-service upgrades. We do not advise this approach, but we will end up completing some of these changes as managed upgrades.
For customers who have compliance certifications with requirements related to privacy and data security, it is crucial that these upgrades are completed before PHP.net's end-of-life so that those customers meet their compliance deadlines.
Further, we want to ensure that all customers are upgraded to PHP 8.4 before PHP.net ends support for PHP 8.2, which in turn can leave customer's files and data insecure. We anticipate that security attacks will begin against PHP 8.2 immediately after security support from PHP.net ends. As a result, we are obligated to ensure that all customers and internal systems are updated and PHP 8.2 is removed from our platform prior to the PHP.net deadline.
Important
Any Acquia-hosted application that is not running at least PHP 8.3 will be upgraded.
Any application that is already using PHP 8.3 or newer will not be upgraded.
FAQs
Q: Why is Acquia reaching end-of-life for PHP 8.2 on 1 October 2026 if the PHP community is not ending security support until 31 December 2026?
Acquia needs to have all applications upgraded to PHP 8.3 or later on the platform prior to the PHP community ends support on 31 December 2026 for security purposes. Since many of our customers have high traffic events near the end of the year, such as financial closing, business/sales season spikes, holiday traffic, administrative end of year events, school registration or finals, we find that waiting to perform these events later in the year affects customers negatively. As a result, we recommend customers to perform these upgrades themselves on or before 1 October 2026. After that, we will move forward with managed upgrades. We are leaving time between the end of our self-upgrade window and the holidays so that we have plenty of time to assist customers who run into issues with their managed upgrades prior to their busy holiday period.
Q: Is there any action required on my part?
All environments currently on PHP 8.2 must be upgraded to PHP 8.3 or newer before 1 October 2026. Prior to that date, you should upgrade your non-production applications to test for any incompatibilities in your application. We recommend that you begin with your non-production upgrades as soon as possible so that you have time to test before upgrading your production application. Once you have resolved any incompatibilities, upgrade your production environment before the end-of-life deadline. For instructions on how to change your PHP version, see Configuring PHP settings.
Acquia Cloud applications that will be on PHP 8.2 after 1 October 2026 will be upgraded to PHP 8.4 automatically as part of the managed upgrade process.
Q: Can I upgrade to PHP 8.3 instead of PHP 8.4?
You can change the PHP version for your application(s) in the Cloud Platform user interface at any time by following the instructions on Configuring PHP settings. You can upgrade your application(s) to PHP 8.2 or later prior to 1 October 2026. After 1 October 2026, you cannot set PHP 8.2 as the PHP version for your application(s).
PHP 8.4 is currently the latest PHP version on the Acquia Cloud platform. We will perform managed upgrades for all applications remaining on PHP 8.2 on 1 October 2026 to PHP 8.4. You cannot choose the PHP version we manage upgrade your application(s) to on 1 October 2026.
Q: How would Acquia recommend I proceed with preparing for my PHP upgrade?
We advise upgrading your development environment first to detect any potential problems in your codebase, and then use your staging environment to test any changes that might need to be carried over before upgrading your production environment.
Q: I am using Acquia Site Factory. How do I upgrade?
All Cloud applications can manage their PHP versions directly in the Cloud Platform user interface, including Acquia Site Factory. For instructions, see Configuring PHP settings.
Q: Will there be any downtime for my non-production environments or production application?
Some connections will experience a brief service interruption as PHP restarts. Any content cached by Varnish will not be impacted. Code changes may be required to ensure that your production application operates as expected after you upgrade to PHP 8.4.
Q: Are there any tools that can assist with this migration from PHP 8.2 to PHP 8.4?
PHP_CodeSnifferand PHPCompatibility are the two external tools that can be used to audit codebases for migration from PHP 8.2 to PHP 8.4.
Q: Is the upgrade to PHP 8.4 available?
Yes, PHP 8.4 is currently available on the Acquia Cloud Platform as the latest available PHP version. Customers can upgrade their application(s) to PHP 8.4 at any time. For instructions on how to upgrade the PHP version for your application, see Configuring PHP settings.
Q: I have some additional questions and concerns. Who can I contact?
If you have any questions about this or any other maintenance, contact Acquia Support.
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