Looking in to this now. From what I can tell so far the public server files have yet to be released.
**EDIT**
Spoken to my server provider. They say they will get the server files for release tomorrow after testing them on their system. From the beta I can confirm (as I have already stated many times!) that FS is compatible with 1.51 and will require only a minor update to do so. Once I can update my server I will switch it to testing files and remedy the required files for the rest of the team to test out. We should have the patch ready to run with 1.51 within a couple days.