<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.2912" name=GENERATOR></HEAD> <BODY> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006>Hello,</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006>I have developed an interface coded in version 209 of DrScheme (including MrEd) and it used to work fine. </SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006>Recently I downloaded the version 350 and I have errors when reading files from directories ( with "directory-list" ). It seems that the format of the output has changed, but I did not find any description of the changes. Instead, there seems to be a new function "path->string" that converts the paths to a string. </SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006>Is it normal that a newer version does not support previous-versions code?</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006>Thank you!</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=549194115-13072006>Ivanka</SPAN></FONT></DIV></BODY></HTML>