3.5.0 is out.
The big changes are rewritten sash code, the ability to add as many panels as you want (well, up to 100 in each direction), Top and Bottom Panels, a much faster OpenFile function, faster Indentation type code for the status bar, rewritten prefs code (drPreferences.py, drPrefsFile.py), and a mess of bugfixes.
Encoding support is now a plugin.
Oh yeah, and Text Splitting. That too.