We released jDiction 1.1.0 for Joomla! 2.5 - 3.2. For more information check the Downloadpage. Anyway installing jDiction should not lead to data loss, but can temporally damage your Joomla! installation like any other extension, so make always backups before upgrading.

If you have a stackexchange account please consider to support the Joomla section at area51.stackexchange.com.