[TYPO3-english] Upgrade from 6.2 LTS to 7 LTS

[Dennis Hoffland]

Hello,

As step 2 of the upgrade routine (see https://wiki.typo3.org/TYPO3_CMS_7.6.0#Upgrading) is listed:

"Then uninstall any extension, that is not shipped with the core"

What is meant here?

Should the extensions just be deactivated in the Extension Manager or should they be completely removed from the server?

Kind regards,

Dennis