The anticipated new release of the NOS/VE operating system for the Cyber family of Control Data mainframes enables up to eight machines – which can be up to 16 processors all told – to be clustered, sharing permanent files, co-ordinating user services and conferring a degree of fault-tolerance. The 1.3.1 release is also claimed to improve Fortran VE performance by up to 15%, with vectorised code compilation on all NOS/VE systems. Improvements have also been made to the Lisp compiler and communications are enhanced with asynchronous terminal pass-through and TCP/IP file transfer.