Issues with 1.1 - I think

In two carving my Y axis moved from 0 to +4 cm. I would like to go back to the last revision - i believe it was 1.07.
How do I get 1.07?
With Joe’s help I found Gsender 1.06 in my recycle filer. and was able to reload it. will do the carving tomorrow and see what’s up.