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This version of Zend Server ships with a certified and secure PHP 7.3 stack, which also includes the largest amount of tested PHP extensions and libraries. All of Zend Server features and components have been fine-tuned to make sure you can easily test your PHP 7.3 code.
Still on PHP 5.6? You should upgrade to a newer PHP, to benefit from extraordinary performance improvements. Or consider Zend Server 9.1 for an extended long-term support with security fixes for PHP 5.6.
For the first time, Zend Server includes more than one version of PHP that you can choose from – and even change as needed. This allows you to take advantage of the latest version of Zend Server – with the newest features, while at the same deciding when to upgrade your apps to the latest version of PHP on your own terms. In addition, this allows for a simpler, smoother PHP upgrade process – with the ability to roll back if things go wrong. Lastly – developers can now experiment with the latest version of PHP, while still being able to develop and test against the version of PHP that’s deployed in their production environment.
The Page Cache subsystem was both made easier to use and at the same time more powerful. The rule engine was modernized and is now simpler and more intuitive to use. It’s now possible to add conditions based on the response headers – allowing apps to signal to Page Cache whether or not the response should be cached. Finally, new APIs were introduced to allow for cross-cluster invalidation of cached copies.
The URL Insight dashboard has been redesigned, with clearer visualizations, separate Requests Per Second and Response Time measurements, and a distribution of events over time. It’s now also easily possible to obtain the list of critical events associated with any of the URLs displayed in the URL Insight pane.