Just wondering if there was an elegant way to force WordPress to use the RSS 1.0 feed at all?

The reason I ask is that we have added some custom XML tags to a site's feed so that an accompanying iOS app can pull certain data from the feed - WordPress has recently deprecated RSS 1.0 in favour of RSS 2.0 and this is breaking the app, so reverting to RSS 1.0 as a short term fix would be ideal.

I will very much look forward to any thoughts you might have!

Alex