[@casiepa Moderator 9 years, 6 months ago]

Hi,
bbPress translation is centralized here: https://translate.wordpress.org/projects/wp-plugins/bbpress/stable/ru/default

If you want to propose a new translation so everybody in the world that uses it in Russian gets your update (when it gets approved), then you can do that using the above link.

If you only want to change it on your local installation, you can read the codex on https://codex.bbpress.org/getting-started/bbpress-in-your-language/