Tixati version 2.28

   * category capture can now also compare file names and tracker URLs
   
What is 'category capture' and how is it used?

   * time span display formatting tweaks

Does this relate to the BW graph?  What's new/different/improved?

Category Capture is an option to automatically assign a category based on torrent name, file name or tracker URL. Tixati matches capture criteria on transfer load and completion, so you can automatically set different category when a torrent is starting and change category when it's complete. To use capture you have to enable Category Sidebar (Layout > Categories > Sidebar), capture settings are on each category Properties > Capture tab.

OP, on your second point, they are referring to the 'time left' type of display in many places... eg 3d 12:53:13

They added a space after the day and I think did something with the leading zeros.

Is it me or it's a bit buggy at the moment (v.2.28) ?
"Capture Trackers" deselects itself after you close and reopen the application (on Windows 7).

i can also confirm that "Capture Trackers" deselects itself after you close and reopen the application (on Windows 7 32bit os and app v2.28)

It happens on Ubuntu 15.10 with Tixati 2.28 64bit too.