Pyramid Technology Corp, under the direction of its new chairman and president Richard Lussier, has announced version 4.0 of its OSx operating system which it claims is a dualport implementation of AT&T’s Unix System V and the Berkeley 4.3BSD. But although Pyramid claims it to be a Unix System V Release 3 implementation, it does not yet include the RFS, Remote File Sharing; streams; shared libraries; or the COFF Common Object File Format. The company, headquartered in Mountain View, California, says that it is currently working on some of the additional V.3 features and utilities for the next release of OSx. No plans have been made for the inclusion of RFS, the company is waiting to see how it develops. The new version of OSx includes a facility called Virtual Disk, which allows users to create logical disk volumes that span multiple physical disks – disk striping, as a first step towards mirror disks. OSx Release 4 has been tested using Issue 2 of the SVID and includes Release of the System V Documenter’s Workbench Software: it will be available in February on the Workcentre, 98xe, 98x and Series 9000 systems. As evidence of recovery, Pyramid points to the bounce in its share price but after two years of doldrums, anything with Technology in its name has been a buoyant market on Wall Street since the first of the year.