The development of update7 started today.
* re-assigns some map characters (pre-existing maps need to be adapted accordingly);
* fixes some minor graphical glitches in the themes "C64", "default" and "vectors";
* applies some other changes.
It will also introduce one-way passages. Other changes/additions are under evaluation.
The re-assignment of map characters has been made in preparation of the addition of one-way passages and possibly of other kinds of passages. The developer's manual and the demos* have been updated to reflect the rearrangement.
*The MacOS version has not been updated yet.