We just got a complaint that the current Zorro version 1.01 calculates the rollover fee in a wrong way. That's indeed the case, due to a misleading documentation by the broker. Zorro multiplies the rollover fee with the number of lots, however it has to be multiplied with the number of contracts divided by 100,000 instead.

This causes a 100 times too high roll value on FXCM microlot accounts. It unfortunately not only affects the performance report, but also the trading with Z1 and Z2 because it distorts the estimated profit per trade.

Thus better don't trade life with the current Zorro version, but wait for the next release that will come out soon.

Is it necessary to close all open position, before using a n new version?

Normally not, as the new version can resume the positions. But in this case it's recommended, as the stored positions contained wrong rollover data. This reduces the possible profit with Z1, and to a lesser amount, also with Z2.

When will you rollout a new version ?

I hope this week. But it has to go through a beta test before release.