Following the release on Steam, the new patch v1.05 for Trine is now available for manual download. The update is for the U.S. & EU retail editions of Trine for PC and adds European language support for those versions that didn't have them already. The patch also brings some technical improvements and bugfixes. Word is:

"This Universal patch file is for EU & US retail editions + Direct2Drive, GamersGate. Those with Steam and Impulse distributions should use the respective autoupdates."