Version: (using KDE 4.2.4) Installed from: Ubuntu Packages editors like emacs provide a facility, saving each open file after a few minutes or after a number of edits. atm kdevelop4 doesn't seem to provide any kind of auto-save option, which would be quite handy, though ...
this should be done in katepart.
*** This bug has been marked as a duplicate of bug 103234 ***