the new MyDAC version 8.4.13 is available for download now.
In this version:
- Lazarus 1.2.6 is supported
 - Support for fraction seconds of datatime fields is added
 - The TMyDataSetOptions.SaveBlobsAsHex property is added
 - Getting datetime precision of table columns via TMyMetaData for MySQL server 5.6 and higher is added
 - Performance of backup data using TMyDump is improved
 - Bug with the "Input\Output error(5)" error on Connect for non-Windows platforms is fixed
 - Bug with losing data after VirtualTable closing on SaveToStream is fixed
 - Bug with RestoreUpdates in CachedUpdates mode is fixed
 - Bug with processing FarEast symbols in WideString fields is fixed
 - Bug in TMyLoader with loading Extended fields is fixed
 - Bug in TMyDump with backup Unicode text fields is fixed
 - Bug on using the AssignConnect method in Dll is fixed
 
http://www.devart.com/mydac