Now I have the feeling that for one of my (relatively) high-frequency strategies the backtest produces much better results than in the previous version of Zorro. Even with the EXTRADATA flag set. For example Sharpe Ratio has almost doubled in one year compared with the old results I saved while the volume and transaction costs remained almost the same.

Unfortunately I don't have the old version anymore. Can anyone please share an old version of Zorro (1.4X) so I can find out if there's really a difference or whether it was my fault? Or is there an official place to download previous releases?