Library /sys$common/syshlp/CMS$DW_HELP.HLB — Overview About Release Notes
You can find the release notes in
SYS$HELP:CMSvvu.RELEASE_NOTES, where vv is
the major version number, and u is the update number.
To list all the CMS release notes available, type:
$ DIRECTORY SYS$HELP:CMS*.RELEASE_NOTES.