Our goal is to make writing La Te X as easy and comfortable as possible.
The shortcuts for moving the cursor get messed up if you use txs 2.9.2 with a non-english language and change something in the options.
When the warnings cound stays the same it usually means you've hit the baseline where every intermediate output is updated with everything else.
Biber supports full UTF-8, can (re)-encode input and output, supports highly configurable sorting, dynamic bibliography sets and many other features.
The CTAN distribution offers a compressed tar archive of the sources, etc., together with “binary” distributions for a variety of platforms.
Note: on Source Forge biber is formally named “biblatex-biber”, to distinguish it from an earlier (now apparently moribund) project called “biber”.