Sixth paragraph. Thanks anyway :) (Besides, it's good to remind people that emulators are getting updated.)

In general, if there's an update dated before the current month, check the news roundup that includes that day (in this case, it's in the roundup for January 5 - February 6). If it's not in there, I probably missed it.
2 months later
Virtual C64 has been updated to 0.9.5.1:
http://www.dirkwhoffmann.de/virtualc64/
Bug fixes and enhancements

1. VirtualC64 supports OS X Lion
2. Preference panels are now tight to their individual virtual machines
3. CIA debug panel has been redesigned
4. Deprecated CoreAudio API calls have been removed
5. Fixed a bug in the BCD to binary conversion routine
6. Fixed a bug that caused the TOD to wake up too early after reading the tenth of a second register
7. Thumbnail images are now rendered properly when switching from PAL to NTSC and vice versa (issue #107)
8. Fixed a bug that caused keyboard events to be rejected when the main window got focus (issue #110)
9. Fixed a bug that caused a discolored line to appear at the right border of the screen texture
10. Yet another startup animation
17 days later
There's an update of Virtual C64 to 0.9.5.2:
* Fixed another bug that caused the emulator to crash on some lion machines