While developing OmniGraffle and OmniGraffle Professional 5.1, we wound up changing and adding quite a few strings and what-not, and as a result those corresponding localizations got broken in the process, this beta release has corrected foreign language translations for Chinese, Dutch, French, German, Italian, and Spanish. Japanese will be coming shortly in another beta release.
Also of note with this release is a fix to a memory leak related to some caching code; this repairs a common CGSWindow error that would lead to a string of constant crashes, so if you've run into a number of stability problems it's encouraged that you pick up this beta release.
As ever, the beta page awaits.
