Last few days I've been seeing this message at the end of planting:
Checking for updates (running auto_mushroom ver. 2.2)...
Server returned response code 404 (Not Found) for https://kolmafia.us/showthread.php
Unable to load current version info.
And the beginning of every day begins...
If it's helpful, here's from a user, not developer. I tried svn update using three different builds including r18485.
A sample (a few out of many) of messages:
svn: E175002: OPTIONS request failed on '/p/ccascend/code/snapshot'
wrldwzrd89-mafia-scripts-trunk-pandamonium-quest not checked -...