Version 6 pre-stable
This version of Silverstripe CMS has not yet been given a stable release. See the release roadmap for more information. Go to documentation for the most recent stable version.

Silverstripe CMS 6 fixed dependencies

Silverstripe CMS relies on third party packages. Silverstripe CMS projects may interact directly or indirectly with those dependencies.

We've defined a list of fixed dependencies for the lifetime of Silverstripe CMS 6. These dependencies will not be upgraded to new major version within the Silverstripe CMS 6 release line.

Dependencies not in this list may be changed or removed altogether within the lifetime of Silverstripe CMS 6.

DependencyFixed major release line
composer-plugin-api2
composer/installers2
guzzlehttp/guzzle7
guzzlehttp/psr72
intervention/image3
league/flysystem3
monolog/monolog3
phpunit/phpunit11
symfony/*7

Symfony dependencies

Silverstripe CMS relies on many Symfony packages. Silverstripe CMS 6 tracks the Symfony 7 release. If your Silverstripe CMS project uses Symfony packages, install packages version compatible with Symfony 6 or you may encounter dependency conflicts.

Related information

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