RSX-11M-PLUS

This document is the RSX-11M-PLUS Release Notes, Version 4.2, published by Digital Equipment Corporation (DEC).

Its primary purpose is to provide critical information for users of the RSX-11M-PLUS Version 4.2 operating system. The document covers:

1. New Features, Restrictions, and Supplementary Information: Detailed descriptions of software enhancements, hardware support (e.g., VT300 terminals, large disks), modifications to system components like the Backup and Restore Utility, I/O device drivers, error logging, data caching, and executive functions.
2. Corrections to Documentation: A comprehensive list of corrections, clarifications, and updates to various existing RSX-11M-PLUS and related manuals (e.g., Debugging Reference, Command Language, Error Logging, System Management Guides), ensuring users have the most accurate information.
3. RMS-11 Version 2.0 Details: Specific modifications, restrictions, and supplementary information pertaining to the RMS-11 file management system, including installation procedures and utility configurations.
4. Layered Product Support: References and instructions for applying correction files to other DEC layered software products that run on RSX-11M-PLUS Version 4.2.

Additionally, the document includes appendices that provide information on the Digital Equipment Computer Users Society (DECUS), guidelines for reporting software problems, and technical procedures for applying source code corrections to various system modules (Executive, MCR, DCL, File System).

First printed in October 1979 and revised multiple times through April 1989, it serves as an essential guide for system administrators and users transitioning to or managing RSX-11M-PLUS Version 4.2.