the new MyDAC build 8.6.20 is available for download now.
In this version:
- Performance of TDALoader on loading data from TDataSet is improved
 - Several bugs in the SmartFetch mode are fixed
 - Bug with processing the cached data in the ApplyUpdates method is fixed
 - Bug with RecNo in the Unidirectional mode is fixed
 - Bug with storing some numbers with floating point is fixed
 - Bug with 'Thread Error' when connecting on OS X via HTTP tunnel is fixed
 
http://www.devart.com/mydac