Upgrading Zend Server on Windows
The procedures on this page describe the upgrade procedures for a single Zend Server and a Zend Server cluster on a Windows operating system.
Please read the following restrictions carefully before proceeding.
Upgrade Restrictions
Upgrading Zend Server can only be performed when upgrading from Zend Server 6.x and older to Zend Server 8.x, or when upgrading between Zend Server 8.x versions.
Direct upgrades from Zend Server 5.6 or older can only be performed using a clean installation of Zend Server 8.x. If a clean installation is not possible, you will need to complete a two-step upgrade procedure. For more information, please contact the Zend Support Center.
For a list of limitations and known upgrade issues, see the Zend Server Release Notes.
Note:
When upgrading from a PHP version lower than PHP 5.5, the Optimizer component will be replaced by the OPcache (Optimizer Plus Cache) component.
Using the Zend Repository Installer
The upgrade procedures use the Linux Zend Repository Installer program which includes a simple shell script that automates the process of upgrading Zend Server through Zend's DEB repository.
The script upgrades your Zend Server and PHP versions, according to your current configurations and target version passed. The script will notify you when an upgrade cannot be performed. This occurs in the following scenarios:
- When attempting to upgrade from Zend Server 5.x and below
- When attempting to downgrade a PHP version
- When attempting to upgrade a Web server (e.g., from Apache to nginx)
Zend Server Versions/PHP Versions Support
This table specifies the PHP versions supported by the latest versions of Zend Server.
| Zend Server 6.0 | Zend Server 6.1 | Zend Server 6.2 | Zend Server 6.3 | Zend Server 7.0 | Zend Server 8.x* |
| PHP 5.3 | PHP 5.3 | PHP 5.3 | PHP 5.3 | - | - |
| PHP 5.4 | PHP 5.4 | PHP 5.4 | PHP 5.4 | PHP 5.4 | - |
| PHP 5.5 | PHP 5.5 | PHP 5.5 | |||
| PHP 5.6 |
* Current version
Upgrading a Single Zend Server
This section describes the procedure for upgrading a single Zend Server.
Example Scenarios:
- Upgrading from Zend Server 7.x to 8.x
- Upgrading between 8.x versions
- Upgrading a PHP Version on Zend Server 8.x
Important!
When changing a major PHP version, some PHP and Zend Server configuration settings may be lost. For post-upgrade reference, we recommend making a backup of the 'etc' folder located in the Zend Server installation files (C:\Program Files\Zend\ZendServer\etc-x.x.x OR C:\Program Files (x86)\Zend\ZendServer\etc-x.x.x).
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To upgrade Zend Server:
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Upgrading a Zend Server Cluster
This procedure explains how to upgrade a Zend Server cluster using the Zend Repository Installer program.
Example scenarios:
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Upgrading a Zend Server cluster to a cluster with the same major PHP version (Example: Zend Server 7.0.0 with PHP 5.5 to Zend Server 8.0.0 with PHP 5.5).
- Upgrading a Zend Server cluster to a cluster with a different major PHP version (Example: Zend Server 6.3.0 with PHP 5.4 to Zend Server 8.0.0 with PHP 5.5 OR Zend Server 7.0.0 with PHP 5.5 to Zend Server 8.0.0 with PHP 5.6).
Important!
When changing a major PHP version, some PHP and Zend Server configuration settings may be lost. For post-upgrade reference, we recommend making a backup of the 'etc' folder located in the Zend Server installation files (/usr/local/zend/etc-x.x.x).
Important!
This procedure does not require disabling the servers in the cluster before upgrading. Servers which are disabled during the upgrade process may fail to run properly when re-enabled.
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To upgrade a Zend Server cluster, perform the following procedure for each server in the cluster:
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