From the announcement at
Minis and Mainframes | Vintage Computer Federation Forums :
"This new version, as well as fixing some long-standing bugs in the user interface, has updated demos to include an alternate IBSYS (“KSYS61”), whose FORTRAN II processor can do chaining and run binaries. Canned demos now include execution of relocatable object programs as well as compile-and-go from source. . .
Many bugs in the emulator have been fixed, enabling successful running of the diagnostics. The demonstration scripts have been very substantially extended, providing more detail and background information, and allowing new modes of operation enabled by the KSYS61 system tapes. Last but not least, the documentation has been greatly expanded."