If you’re receiving a message about version 4.30 data being converted to 4.4 (which has not yet been released) after you’ve loaded the latest Sage tax table update (TTU) – it’s safe to ignore the message.
According to Sage this is a cautionary message and your data will only be updated for the latest tax table update and no conversion to 4.40 will occur.
The message occurs because during conversion the highest module level is shown (as stored in SY_Module.M4T) and the 2010 Tax Table Update is 4.40 – therefore producing the somewhat confusing “The data for company XXX will be converted to version 4.40”.