I tried the new Bloglines Beta today. Two of the most obvious changes (changes that I noticed within 10 seconds of using it) are:
The "Keep New []" checkbox is gone. In its place as a "[] Read" checkbox, just like Google Reader.
Whin I click on an empty feed in the left nav, instead of getting a regular feed page (only with zero entries) on the right panel, I get a generic feed independent page.
These improvements break a couple of my blog reading habits, which I'll state as use cases:
Use Case 1: Marking a feed as read
Click on the feed in the left nav
Use Case 2: Visit the website of a feed
Click on the feed in the left nav
Click on the title link in the right panel
Granted, these two use cases must have not been the original use cases for the developers of Bloglines. Otherwise they won't be broken in a new version. However, these are implied use cases from the overall behavior of the current version of the software. I just happen to depend on these implied use cases.