TYPO3 Core

There isn't any option to disable the dependency check for the Extension Manager.

There is no option in general, but every time you install an extension the requirements of which cannot be met a dialog appears where you can disable the system dependency check.

You can only disable it for one installation request.

And this mechanism is not explained good enough - or I have not found the documentation yet ;)

How do you come up with such a thought?

To realize a dependency management that checks and assists every change of extension states the dependency graph has to be evaluated with every install and uninstall in the extension manager. If you allow to install one extension with "invalid dependencies" the dependency manager could possibly not create a valid state with the next install/uninstall. So you have some special rules to handle this case which needs some state / storage, right?

Consequence: extensions ignored by/overriding the dependency management should be marked in the extension manager.

Can you describe your case a bit more?

I am sorry for my bad explanation, but it's nearly 5 months ago and this how I understood my explanation today (not sure anymore, really sorry):

• There were two extensions A and B
• Extension A had been installed
• Extension A had been set to excludeFromUpdates
• Extension B was dependend on A (B->A)
• Extension B has been installed freshly
• Extension A has been updated automatically to meet the dependencies although updates were forbidden

This must have happened in a TYPO3 6.2.x.