One question that is comming back frequently is: What happened to the language files in Phoenix? Why are there only translations for French, German and Japanese?
Actually all previous translations are still there in CVS. However we haven't shipped them with the release because they haven't been updated yet, i-e they do not contain translations for many many strings in Phoenix. Using the old files would only partially localize Phoenix to the desired language.
To update 0.9.x languages files to Phoenix, you need to merge them with the new .POT file found in Phoenix as described in the online manual.
Also, we're planning to only ship a limited number of localizations by default in future releases, in order to keep the main download file small. All other languages will be provided separately in their own language packs.