TYPO3 Core

For extension development, it would be helpful if we had an event for reacting to changes in the extension configuration (in ext_conf_template.txt).

To be specific, I have two cases where changing a setting requires an immediate action from my extension.

1. I have a setting that sets a token. It's required that my extension looks for new data immediately when the token changes. Since there's no event, I had to settle for a workaround where I keep another copy of the token in the system registry and perform an update when my controller is called and there's a difference between the registry and the configuration.

2. I have a setting that causes a change to my setup.typoscript. It determines, among other things, whether some additional css is loaded. I've noticed that the css load changes only take effect after the frontend cache is flushed. It would be nice if my extension could take care of flushing the cache in a "settingsChangedEvent" of some kind.