OpenVMS Version 7.3

This manual provides comprehensive release notes for OpenVMS Version 7.3 for both Alpha and VAX platforms. It includes:

• Installation & Upgrade: Common and platform-specific procedures, including cluster rolling upgrades and networking options.
• Associated Products: Updates on PATHWORKS, Compaq C/C++, COBOL, and others.
• System Management: Information on ECP, Extended File Specifications, External Authentication, OpenVMS Galaxy, and Lock Manager enhancements.
• Programming Notes: Updates on Backup API, Run-Time Libraries (C, COBOL, Ada), and the Debugger.
• Hardware & Device Support: Details on AlphaServer GS Series, SCSI controllers, and device driver requirements.

The document also serves as a reference for retired products and provides hardware-specific release notes for various Alpha platforms.