Many feeds are dead, or near dead, since yesterday night

Several feeds, particularly the automatically generated ones like those that pickup recently published online fiction, seem to be dead since yesterday night.

Software to generate these is authored & hosted by Yahoo, & the cause happens to be a recent software upgrade there. I'm talking to them, but tomorrow being a Sunday, I'm not sure the issue will be resolved before Monday. And probably US Monday, which means India's Tuesday.

Main Variety SF feed seems to be ok, but feed that picks up only good online fiction isn't.
Update 6 February 2010: I've patched code for feed that picks up only good online fiction to bypass the bug, so this feed now works. But most other feeds, including the ones that pick up recently published online fiction, are still dead.

I'll post a note when it's fixed.