I can’t enter Russian letters into text object. Blender just ignores them. Why?
Also Russian filenames etc are displayed incorrectly.
Is this a bug?
In theory, you should be able to do it directly if you have a russian keyboard.
If not, type whatever you want in the Text Editor and create a new text from there. (I just tested, it works.)
You can also press [TAB] to edit the text and import a file from there.
BUT the font must support cyrillic characters first! Something that the default font in Blender doesn’t. It is very limited. Change it for something a little more… advanced. 