.. include:: ../Includes.txt



.. _typo3_console-command-reference-upgrade-checkextensionconstraints:

The following reference was automatically generated from code.


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upgrade:checkextensionconstraints
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**Check TYPO3 version constraints of extensions**

This command is especially useful **before** switching sources to a new TYPO3 version.
It checks the version constraints of all third party extensions against a given TYPO3 version.
It therefore relies on the constraints to be correct.

Arguments
~~~~~~~~~

`extensionKeys`
   Extension keys to check. Separate multiple extension keys with comma



Options
~~~~~~~

`--typo3-version`
   TYPO3 version to check against. Defaults to current TYPO3 version

- Accept value: yes
- Is value required: yes
- Is multiple: no
- Default: '<Current-TYPO3-Version>'