What's new in MT 4.0 Build 171??

 
What's new in MT 4.0 Build 171??
 
Available for download though not apparently yet on the auto-update mechanism.

I'd obviously be keen to know what's new and improved as the MetaQuotes guys are always improving a great product.

Any news on the implementation of the Strategy Tester ?

Any news on a release date on the great MT4 ? My broker FXDD are hot to trot in deploying it once it's ready to trade so I'm naturally also keen for a rough date for release.

Cheers
Martin