Yes, my upgrade worked but I have a few problems:

• Sorting works for me but it seems to be reversed - "least recent" shows most recent at the top
• The timestamps in the list of feeds now seem to be the timestamps of last update rather than the timestamps of the most recent article
• Hiding read feeds/articles has no effect
• The whole application feels much slower

I deleted ~/.feedingit and relaunched so I don't think that the above problems are due to upgrading from an older version.