I noticed there are files now on SourceForge, although the release was not
announced yet. I also found a few possible errors, although it is possible
that the uploads are simply not finished yet:

   Csound5.01b-win32.exe   10302094  993  i386  .exe (32-bit Windows)
   Csound5.01_OSX10.2.tar.gz   5792367  20  PPC  .gz
   Csound5.01_OSX10.3.tar.gz   6009246  35  PPC  .gz
   Csound5.01_OSX10.4.tar.gz   6890732  76  PPC  .gz

these are apparently old beta packages, and should probably be removed, or,
in the case of the OS X files, replaced with the new ones uploaded to the
Bath server.

   Csound5.01_manual_chm.zip   2396129  0  Platform-Independent  Source .zip
   Csound5.01_manual_html_single_file.zip   1994736  0  Platform-Independent  Source .zip

I think these are really “html” (is there also a separate “chm” file type
available for SF uploads ?), and not “Source .zip”, but this is a minor issue.