!:!£st Edition (March 1979)
This edition, GC2o-1834-0, corresponds to 1 (Prograa Level
Change) of the IS! Virtual Machine Faci1ity/370, and to all subsequent
aodifications unless otherwise indicated in new editions or Technical
Newsletters.
Changes are periodically .ade to the inforaation herein; before using this publication in connection with the operation of IB! systeas, consult the latest IB! Bibliography, Order Bo. GC20-0001, for
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1974, 1975, 1976, 1977, 1979

This publication reflects the content and
status of the IBM Virtual Machine Facility/370 (VM/370) Release 6. It
provides installation managers, system programmers, and IBM hardware and software
support personnel with information useful
for planning and implementing the release. In order to maintain a concurrent history
of the VM/370 endeavor, retain all previous
editions of the Release This publication has eight sections: • Section 1 is a summary of changes to the VM/370 system for this release. • Section 2 contains a module directory
and status lists of all modules in the
system. • Section 3 contains charts showing
changes and additions to the VM/370 commands, macro instructions, and
service programs as well as cbanges to ABEID codes and WAIT states. • Section 4 lists the deletions and
additions to the VM/370 library. It
also contains a chart that lists the
base publications and the corresponding TILs and/or supplements to those
publications. Another chart shows the
deletion or addition of duplicate
information within each publication.
This chart shows the publications where
this information is deleted and the
publications where this information has
been retained or added. • • Preface
Section 5 contains ordering and
distribution procedures for the program lIaterial shipped with the release and
for the available optional Section 6 contains
list of VM/370 allendments and
significance are
section.
modifications to the
restri ctions '. On ly changes of major
included in this • section 7 lists the APARs (Authorized Program Analysis Reports) that this
release corrects and integrates. • Section 8 discusses changes that must be made to the system to maintain
ccmpatibility with hardware and software
this release supports. I Information on the Directory Maintenance I prcgram prod uct (Program No. 5748-XE4) I is for planning purposes only until I the availability of that I PREREQUISITE PUBLICATIONS IBM Virtual Order No. GC2Q-1800 Preface iii