This release fixes a firmware bug that prevented xlink from working properly with C64C boards (Assy. 250469 and later). On these boards an additional 470pf capacitor has been added to the /FLAG line on the userport, which requires increasing the time that the line is held low in order to assert it.

Also version 1.2 introduced a bug in the win32 client, resulting in a double free() on exit, which causes windows to display a message among the lines of “The program has stopped working…”, although the program has worked properly up to that point.

Thus updating is only required if you’re using xlink from windows or with a later C64 board revision.