10.10-beta-1 is out now with the following:
New Feature: Background blurring can now be fine tuned to any amount (or easily turned off) under Tools > Options > Visuals > Backgrounds. Background blurring options are also now available for all themes, including the old default theme.
Improvement: Performance for the new default theme is now on par with the old default theme. We're using a completely new method to blur the backgrounds, since the old method was causing performance degradation.
Improvement: Box shadows for the new default theme can be disabled under Tools > Options > Visuals > Boxes in order to improve performance on lowend systems
Improvement: Numbers sections of titles will now be sorted numerically by default, instead of alphabetically. For example, the new logic will sort 1, 2, and 11 as 1, 2, 11 instead of the 1, 11, 2 order that was used previously.
Fixed: In Big Box, the retro achievements game details web view can now be zoomed in and out with the proper bindings
We've also added the manifest to supposedly support long path names, but we haven't been able to test and confirm that it's working. If anyone can confirm either way on this, please let us know.