RSX-11M-PLUS

This document, the "RSX-11M-PLUS Release Notes Version 4.0," provides essential information for users of the RSX-11M-PLUS operating system.

Key areas covered include:

• New Features & Device Support: Introduction of support for various new hardware devices (processors, disk/tape drives, modems, multiplexers) and software enhancements like new error logging modules, an Executive directive (GIN$), and improvements to the Indirect Command Processor (performance and new directives). The Executive Debugging Tool (XDT) is now loadable on all systems, and data caching has been enhanced with deferred write requests and larger extent sizes.
• System & Utility Updates: Details on new DCL and MCR commands/keywords, streamlined system generation procedures (including vectored privileged tasks that no longer require rebuilding), and updated utilities like the Backup and Restore Utility (BRU), Data Terminal Emulation (DTE), and File Transfer Utility (MFT). MACRO-11 also receives logical name support and assembler corrections.
• Restrictions & Incompatibilities: Important limitations are noted, such as large disk support still capping files at 65,500, VT300 terminals only functioning in VT200 mode, and various restrictions and known issues for RMS-11 Version 2.0 utilities (e.g., RMSBCK date switches, RMSDES default device handling).
• Documentation & Installation: Provides corrections and supplementary information for other RSX-11M-PLUS and RMS-11 manuals, outlines changes to distribution media and file locations, and describes a new source kit restore procedure.
• Support Information: Includes a list of updated layered products with their correction files and instructions for reporting software problems (Software Performance Reports - SPRs) and applying source file corrections.