It should still work since it has not been changed.
When you have updated Joomla to v2.5 then the Autocompleter might be broken and will be fixed with the next release.
You can update to the development version if you like. It already contains the new Autocompleter. Please check the FAQ from the trunk because it contains some important information.
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer