A minor issue:
The setup folder was moved in SVN revision 5053; however, update.bat at the latest revision (5070) still contains the following.
echo Copying external exception handler
copy /y setup\exchndl.dll output > nul
copy /y setup\exchndl.dll devel > nul
Should these go away?
Would it be possible to modify update.bat, similar to patch 2452, to eliminate unnecessary copying of unchanged files?