How to upgrade from version 0.52

- Replace the *.EXE and *.HLP files in your YARN directory with the ones
  from the new distribution.

- Mail aliases are now specified in the <home>\YARN\ALIASES file.
  This file contains statements in the form

        <name>=<addresses>

  where <name> is the alias name and <addresses> is a list of one or
  more mail addresses.  You can specify an alternate aliases file
  by setting

	aliases=<file>

  in the CONFIG file where <file> is the full path of the aliases file.


How to upgrade from version 0.47 or earlier

- Older versions of Yarn stored your incoming mail in the file
  <home>\YARN\INBOX.  If you want to keep the messages in this file,
  move it to the <home>\MAIL directory.  For example, if the user's
  home directory is C:\JIM, type at the DOS prompt

        COPY C:\JIM\YARN\INBOX C:\JIM\MAIL\INBOX
