[Typo3-dev] How to create an UPDATE-Option in my plugin ?

[Stefan Geith]

Ries van Twisk schrieb:
> Stefan,
> can you explain a little more about this???
> 
>> could someone give me a hint, how I can create
>> an update-option in the extensions-menu for my plugin ?
>> Where do I register the function, that does the update ?

When a new Version of my Plugin uses some db-field in
another way than before, then I must have an Update-Function,
when updating to the new Version - like in tt_news, where
the category-filed was changed.

I have seen, that I must create a class-file named
"class.ext_update.php", but I can't find information
about the contents of this file an how it is
integrated in typo3.

-

Stefan