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<TITLE>MH &amp; nmh: Changes to the Online Book</TITLE>
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<BODY BGCOLOR="#FFFFFF">
<H1>Changes to the Online Edition of `MH &amp; nmh'</H1>
<P>
[First, a brief request for your help on future updates.
This book is a volunteer project, and my time is very limited
now that I have a full-time job again.
<I>Want to help make this book better?</I>
See <A HREF="to-do.htm">Jerry's To-Do List</A>.
Thanks!]
<P>
This page is a detailed list of content changes between this book's
<I>original</I> Web version and the <I>updated</I> version.
The book's <I>updated</I> version has new information in existing chapters
and sections, as well as new sections (and, eventually, new chapters).
There are three major sections below:
<A HREF="#991009">the most recent update, 9 October 1999</A>,
and the previous updates,
<A HREF="#990413">13 April 1999</A>,
<A HREF="#970928">28 September 1997</A>
and <A HREF="#970530">30 May 1997</A>.
Each has two subsections: Major and Minor changes.
Links from these sections take you to (or close to) the changed text.
<P>
The text in the <I>original</I> Web version is almost identical to
the printed book, the third edition of
<I>MH &amp; xmh: Email for Users &amp; Programmers</I>,
ISBN 1-56592-093-7, by Jerry Peek, published by O'Reilly &amp; Associates, Inc.
Changes to the <I>original</I> edition were minor ones needed to make the
book work on the Web.
You can get the <I>original</I> Web version from the file
<A HREF="download/original.tar.gz">download/original.tar.gz</A>
or live from O'Reilly's server at
<A HREF="http://www.oreilly.com/freebooks/mh/">
http://www.oreilly.com/freebooks/mh/</A>.

<A NAME="991009"><H2>Latest Update, 9 October 1999</H2></A>
This update was mostly format conversion and small global edits.
There were very few content changes.
<H3>Major Changes</H3>
The background color of all pages is now white.
It used to be the browser's default, which was grey on Netscape.
Figures have a thin border so they all stand out from the background.
This really should be done with CSS (styles)... but CSS still doesn't seem
to work consistently, so I've hardcoded this stuff in the HTML files for now.
<P>
Unisys Corporation has a patent on the LZW algorithm used to encode
GIF files.
Only software licensed by Unisys creates legal GIFs using LZW.
I'm not sure of the license status of the software I used (or even
<EM>which</EM> software I used).
So, in this update, I replaced all original GIF files with other files.
(Brent Welch also put two new color screen shots, from the latest exmh
version 2.1.0, into his section
<A HREF="exmh/thexmdi.htm">The exmh Display</A>.)
There are two kinds of files now:
<UL>
<LI>
Where GIF figures were continuous-tone or looked okay after they'd been
converted, I used JPEG files instead.
I experimented with the JPEG quality to keep the image as clear and as
small as possible.
Some aren't quite as clear as the original GIFs, but I think they're
good enough.
<LI>
Some GIFs -- especially the xmh and exmh screen shots -- look lousy as
JPEGs.
For those, I used GIFs made with the
<A HREF="http://home.wxs.nl/~nijtmans/img.html">Tcl Img extension</A>,
version 1.2.1, from Jan Nijtmans.
<!-- Jan.Nijtmans@wxs.nl -->
Here's a quote from that Web page:
"Instead of LZW, the run-length encoding of Hutchison Avenue Software
Corporation is used, also known as miGIF compression. The miGIF
compression routines do not, strictly speaking, generate files
conforming to the GIF spec, since the image data is not LZW-compressed
(this is the point: in order to avoid transgression of the Unisys patent
on the LZW algorithm.) However, miGIF generates data streams that any
reasonably sane LZW decompresser will decompress to what we want."
</UL>
If you have any problems with these pseudo-GIFs, please click on my
email address at the bottom of the page and send me details!
PNG files would have been a good alternative if enough people had
PNG-capable browers... but I don't think that's happened yet.
Maybe on the next major revision I can re-convert the figures to PNG.
<H3>Minor Changes</H3>
Here are the specific changes.
All of them are minor; they don't change the meaning of the book text:
<UL>
<LI>
Replaced each &lt;LINK REV=MADE HREF=...&gt; tag with a
&lt;META NAME="Author" CONTENT=...&gt; tag.
<LI>
Edited the page footer at the bottom of all HTML files except the
<EM>mh-e</EM> section:
Changed "This file is freely-available" to
"This file is freely available"
Updated the URL for Jerry Peek from <EM>http://www.jpeek.com/~jpeek/</EM>
to <EM>http://www.jpeek.com/</EM> and broke that long line onto two
shorter lines.
<LI>
The files
<A HREF="exmh/figs/thpidi.gif"><EM>exmh/figs/thpidi.gif</EM></A> and
<A HREF="exmh/figs/buined.gif"><EM>exmh/figs/buined.gif</EM></A>
are slightly larger (have a few more pixels).
<LI>
The file <EM>exmh/figs/mpoted.gif</EM> was renamed to
<A HREF="exmh/figs/mpotedbw.gif"><EM>mpotedbw.gif</EM></A>;
now <EM>mpoted.gif</EM> is an updated full-color screen shot in JPEG
format, <A HREF="exmh/figs/mpoted.jpg"><EM>mpoted.jpg</EM></A>.
Also, <EM>exmh/figs/higkey.gif</EM> is now an updated full-color screen shot
in JPEG format, <A HREF="exmh/figs/higkey.jpg"><EM>higkey.jpg</EM></A>.
<LI>
The following files have been changed to JPEG format from GIF:
<A HREF="mh/figs/afscfwto.jpg"><EM>mh/figs/afscfwto.jpg</EM></A>,
<A HREF="mh/figs/aprottot.jpg"><EM>mh/figs/aprottot.jpg</EM></A>,
<A HREF="mh/figs/asubfold.jpg"><EM>mh/figs/asubfold.jpg</EM></A>,
<A HREF="mh/figs/cufoafos.jpg"><EM>mh/figs/cufoafos.jpg</EM></A>,
<A HREF="mh/figs/meliithf.jpg"><EM>mh/figs/meliithf.jpg</EM></A>,
<A HREF="mh/figs/s2dmbape.jpg"><EM>mh/figs/s2dmbape.jpg</EM></A>,
<A HREF="mh/figs/s56afcot.jpg"><EM>mh/figs/s56afcot.jpg</EM></A>,
<A HREF="mh/figs/sams1mdf.jpg"><EM>mh/figs/sams1mdf.jpg</EM></A>,
<A HREF="overall/figs/hammgfat.jpg"><EM>overall/figs/hammgfat.jpg</EM></A>,
<A HREF="overall/figs/impoaunf.jpg"><EM>overall/figs/impoaunf.jpg</EM></A>,
<A HREF="overall/figs/mhcover.jpg"><EM>overall/figs/mhcover.jpg</EM></A>,
<A HREF="overall/figs/mhfro-hi.jpg"><EM>overall/figs/mhfro-hi.jpg</EM></A>,
<A HREF="overall/figs/mhfroend.jpg"><EM>overall/figs/mhfroend.jpg</EM></A>,
<A HREF="overall/figs/twolinme.jpg"><EM>overall/figs/twolinme.jpg</EM></A>,
<A HREF="xmh/figs/xmfimawi.jpg"><EM>xmh/figs/xmfimawi.jpg</EM></A>,
<A HREF="xmh/figs/pickwind.jpg"><EM>xmh/figs/pickwind.jpg</EM></A>,
<A HREF="xmh/figs/fortwmes.jpg"><EM>xmh/figs/fortwmes.jpg</EM></A>,
<A HREF="xmh/figs/xmawiwpl.jpg"><EM>xmh/figs/xmawiwpl.jpg</EM></A>,
<A HREF="xmh/figs/woosedao.jpg"><EM>xmh/figs/woosedao.jpg</EM></A>,
<A HREF="xmh/figs/radfasmw.jpg"><EM>xmh/figs/radfasmw.jpg</EM></A>,
<A HREF="xmh/figs/rarmwuac.jpg"><EM>xmh/figs/rarmwuac.jpg</EM></A>,
<A HREF="xmh/figs/searpowi.jpg"><EM>xmh/figs/searpowi.jpg</EM></A>,
<A HREF="xmh/figs/aviewwin.jpg"><EM>xmh/figs/aviewwin.jpg</EM></A>,
<A HREF="xmh/figs/asubfold.jpg"><EM>xmh/figs/asubfold.jpg</EM></A>,
<A HREF="xmh/figs/maanpiwi.jpg"><EM>xmh/figs/maanpiwi.jpg</EM></A>,
<A HREF="xmh/figs/ormarwsr.jpg"><EM>xmh/figs/ormarwsr.jpg</EM></A>,
<A HREF="xmh/figs/swbogats.jpg"><EM>xmh/figs/swbogats.jpg</EM></A>,
<A HREF="xmh/figs/wimwancw.jpg"><EM>xmh/figs/wimwancw.jpg</EM></A>.
All other GIF files have been remade without LZW compression, as
explained <A HREF="#991009">above</A>.
</UL>

<A NAME="990413"><H2>Previous Update, 13 April 1999</H2></A>
(This update was partly finished on 24 February 1999, and completed on
13 April.)
Many of the changes are to update the book for nmh-1.0.
The major differences are:
<UL>
<LI>
<I>mhn</I> has been cloned, and its clone has been split
into four pieces named <I>mhbuild</I>, <I>mhlist</I>, <I>mhshow</I> and
<I>mhstore</I>.
So, there are new profile entries, new reference guides, and 
lots of related changes all through the book.
<LI>
<I>flist</I> is quite different than it was in nmh-0.17.
</UL>
<H3>Major Changes</H3>
<UL>
<LI>
Read through server and index errors and reader comments, scanned whole book
for changes needed.
<LI>
Fixed and added index entries.
<LI>
Made MH-specific section titles (mostly, titles that mention <I>mhn</I>)
more generic:
  <UL>
  <LI>
  <I>1.7 Obtaining MH, xmh, exmh, and mh-e</I> became
  <A HREF="overall/obtxmh.htm">1.7 Obtaining MH, nmh, xmh, exmh, and mh-e</A>
  <LI>
  <I>5.9.5 mhn Can Also Do...</I> became
  <A HREF="mh/usimim.htm#mhCaAlDo">5.9.5 Other MIME Operations</A>
  <LI>
  <I>6.2.3 How mhn Shows a Message</I> became
  <A HREF="mh/remime.htm#HomhShMe">6.2.3 Showing MIME Messages</A>
  <LI>
  <I>6.2.11 Alternatives to mhn</I> became
  <A HREF="mh/remime.htm#Alttomhn">6.2.11 Other MIME Handlers</A>
  <LI>
  <I>7.5.8 Recovering Drafts Edited by mhn</I> became
  <A HREF="mh/wormes.htm#ReDrEdmh">7.5.8 Recovering MIME Drafts</A>
  <LI>
  <I>7.6.2 mhn Directives</I> became
  <A HREF="mh/cosemime.htm#mhnDirec">7.6.2 MIME Draft Directives</A>
  <LI>
  <I>7.6.5 How mhn Chooses Encoding</I> became
  <A HREF="mh/cosemime.htm#HomhChEn">7.6.5 Choosing MIME Encodings</A>
  <LI>
  <I>9.4 Configuring mhn</I> became
  <A HREF="mh/confmhn.htm">9.4 MIME Configuration</A>
  <LI>
  <I>9.4.1 Profiles that mhn Reads</I> became
  <A HREF="mh/confmhn.htm#PrthmhRe">9.4.1 MIME Profiles</A>
  <LI>
  <I>9.4.2 Making an MHN Profile</I> became
  <A HREF="mh/confmhn.htm#MaanMHPr">9.4.2 Making a MIME Profile</A>
  <LI>
  <I>9.4.4 Showing Contents: mhn-show-</I> became
  <A HREF="mh/confmhn.htm#ShComhsh">9.4.4 Showing MIME Contents</A>
  <LI>
  <I>9.4.5 Displaying Other Character Sets: mhn-charset-</I> became
  <A HREF="mh/confmhn.htm#DiOChSmc">9.4.5 Displaying Other Character Sets</A>
  <LI>
  <I>9.4.6 Composing Content: mhn-compose-</I> became
  <A HREF="mh/confmhn.htm#CoComhco">9.4.6 Composing MIME Content</A>
  <LI>
  <I>9.4.7 Storing Content: mhn-storage and mhn-store-</I> became
  <A HREF="mh/confmhn.htm#SoComsms">9.4.7 Storing Content</A>
  <LI>
  <I>9.4.8 Caching External Body Parts: mhn-cache and mhn-private-cache</I> became
  <A HREF="mh/confmhn.htm#CEBPmcmp">9.4.8 Caching External Body Parts</A>
  <LI>
  <I>9.4.9 Getting External Body Parts by FTP: mhn-access-ftp</I> became
  <A HREF="mh/confmhn.htm#GEBPFmaf">9.4.9 Getting External Body Parts by FTP</A>
  <LI>
  <I>E.5.2 Syntax of mhn Directives</I> became
  <A HREF="overall/mimerg.htm#SomD">E.5.2 Syntax of MIME Draft Directives</A>
  </UL>
and changed all cross-references in all files that used those section names.
<LI>
Made MH-specific table titles more generic:
  <UL>
  <LI>
  <I>5-1 Examples of mhn directives</I> became
  <A HREF="mh/usimim.htm#Exofmhdi">5-1 Examples of MIME draft directives</A>
  <LI>
  <I>9-3 mhn Storage Formatting Strings</I> became
  <A HREF="mh/confmhn.htm#mhStFoSt">9-3 MIME Storage Formatting Strings</A>
  <LI>
  <I>9-4 mhn Storage Escapes</I> became
  <A HREF="mh/confmhn.htm#mhStoEsc">9-4 MIME Storage Escapes</A>
  </UL>
<LI>
Added new reference guides:
  <UL>
  <LI><A HREF="mh/r-mhbuil.htm">E.1.12 mhbuild Reference Guide</A>
  <LI><A HREF="mh/r-mhlist.htm">E.1.14 mhlist Reference Guide</A>
  <LI><A HREF="mh/r-mhshow.htm">E.1.19 mhshow Reference Guide</A>
  <LI><A HREF="mh/r-mhstor.htm">E.1.20 mhstore Reference Guide</A>
  </UL>
<LI>
Many, many small changes to update for new command names in nmh.
(Sorry, I can't link to all of them from here!
Most are in sections about MIME.)
For instance, changed phrases like "use <I>mhn -list</I>" into something like
"use <I>mhn -list</I> or <I>mhlist</I>".
Edited descriptions of MIME profile entries like
<TT>mhn-store-text:</TT> to mention that,
for nmh-1.0+, you could use <TT>mhstore-store-text:</TT> instead.
</UL>
<H3>Minor Changes</H3>
<UL>
<LI>
On 5 May 1999, updated the
<A HREF="mh/morabo.htm">nmh and <EM>exmh</EM> mailing list addresses</A>
and <A HREF="mh/mh-2.htm">nmh distribution location</A>.
<LI>
On 22 April 1999, cleaned up the
<A HREF="structur.htm">description of the book's structure</A>.
<LI>
Added a paragraph about <I>procmail</I> to the section
<A HREF="mh/altmhpr.htm#ReAoYma">Replacing All of Your .maildelivery File</A>.
(This deserves a whole section of its own.)
<LI>
In the section <A HREF="mh/usimim.htm#ReMIMa">Reading MIME Mail</A>,
updated the sizes of the body parts in the sample MIME message and
showed parts of the revised message.
(I had revised the message a few years ago, when the online edition came out.)
<LI>
In the section <A HREF="mh/usimim.htm#SeMIMa">Sending MIME Mail</A>,
deleted mention of a bug in nmh-0.17 where it could abort during "mime"
processing at a "What now?" prompt.
<LI>
In the section
<A HREF="mh/confmhn.htm#Theautmh">Building MIME Drafts Automatically</A>,
made small change in sample message body.
<LI>
In the section
<A HREF="mh/cosemime.htm#HomhChEn">Choosing MIME Encodings</A>,
added note about <I>mhbuild -ebcdicsafe</I>.
<LI>
Updated URLs and deleted mention of mail servers (not working anymore)
in the section <A HREF="mh/mh-2.htm">MH and nmh Source Code</A>.
<LI>
Updated the section
<A HREF="mh/sencom.htm#viamail">Send Files with MIME: viamail</A>
as well as the
<A HREF="mh/mhrg.htm">MH Reference Guide</A>
to mention nmh <I>sendfiles</I> command (which is basically just
<I>viamail</I> with a different name).
<LI>
Added a cross-reference link from the section
<A HREF="mh/sencom.htm#Addapp">Add Files to Your Drafts: append</A>.
<LI>
In the section
<A HREF="mh/senove.htm#WhaPro">What now? -- and the whatnow Program</A>   
documented the new nmh "What now? delete" feature.
<LI>
In the section
<A HREF="mh/shomes.htm#ChaPri">Changing Showproc for Viewing, Printing, and Editing</A>,
mentioned that <I>mhl</I> is the default showproc in nmh-0.21+.
<LI>
In the sections
<A HREF="mh/shomes.htm#ChaPri">Changing Showproc for Viewing, Printing, and Editing</A>
and
<A HREF="mh/shomes.htm#Usisho">Using mhl</A>,
added details about the moreproc.
<LI>
Covered <I>mhshow -nocheckmime</I>
in the section <A HREF="mh/shomes.htm#Witsho">Without a showproc</A>.
<LI>
In the section
<A HREF="mh/stormess.htm#DeStMIMe">Decoding and Storing MIME Messages</A>,
added info about storage with the <I>-type</I> and <I>-part</I> switches.
<LI>
Added a new part <I>Using Caches</I> to the end of the section
<A HREF="mh/stormess.htm#DeStMIMe">Decoding and Storing MIME Messages</A>.
<LI>
Updated Brent Welch's email address and Web page URL
in links at the ends of pages he wrote.
(All those pages are in the exmh Part.)
<LI>
Updated exmh contact info in the sections
<A HREF="exmh/morinf.htm">More Information</A>,
<A HREF="exmh/proexm.htm">Programming exmh</A>
and <A HREF="exmh/exmh-2.htm">exmh</A>.
<LI>
Updated the
<A HREF="xmh/chafor.htm#scxmfofi"><EM>scan.xmhwide</EM> format file</A>
to handle four-digit years.
<LI>
Tweaked the
<A HREF="overall/ch-itm.htm">Chapter Introduction</A> of the
<I>Introduction to MIME</I> to treat MIME as if it's not something new
(as it was when this chapter was written...).
<LI>
Mentioned nmh in the <A HREF="overall/ch-p.htm">Preface Introduction</A>.
<LI>
Added a new subsection <EM>nmh, the New MH</EM> to the section
<A HREF="overall/howwor.htm#EmaUsAge">Email User Agents</A>.
<LI>
Added info about nmh manpages to the section
<A HREF="overall/onmanpag.htm">Online Manual Pages</A>.
<LI>
Changed the sample MIME message header in
<A HREF="overall/ovofmime.htm#EncMIMes"><EM>Example: Encoded MIME message</EM></A>,
and the explanation after it, to show RFC 2047 encoding.
<LI>
Covered nmh <I>-nocheckmime</I> switch in the section
<A HREF="overall/ovofmime.htm#MIHeFi">MIME Header Fields</A>.
<LI>
Updated the section
<A HREF="overall/whamh.htm">What Computers Support MH?</A>
to mention nmh, plus other revisions.
<LI>
Small edit to sentence about Phil Karlton in the section
<A HREF="overall/xmh.htm">History of xmh</A>.
<LI>
Small tweaks to the section <A HREF="overall/whaema.htm">What is Email?</A>.
<LI>
Added note about versions of <I>fmt</I> to the introduction of the
Section about <A HREF="mh/hl.htm">mhl</A>.
<LI>
Ran <A HREF="ftp://ftp.cre.canon.co.uk/pub/weblint/">weblint</A>
on the book files and fixed most of its complaints.
</UL>
<A NAME="970928"><H2>Previous Update, 28 September 1997</H2></A>
<H3>Major Changes</H3>
<DL>
<DT>Overall
<DD><UL>
<LI>
Fixed and added index entries.
</UL>
<DT>28 September 1997
<DD><UL>
<LI>
Updated RFC numbers in all pages, especially the sections
<A HREF="overall/ap-rl.htm">Reference List</A> and
<A HREF="overall/rfcaid.htm">RFCs and Internet Drafts</A>.
<LI>
Changed book title to <I>MH &amp; nmh: Email for Users &amp; Programmers</I>.
<LI>
Released the updated version.
</UL>
<DT>25 September 1997
<DD><UL>
<LI>
Added the new sections
<A HREF="mh/rem.htm#drmm">Delayed Removal: drmm</A> and
<A HREF="mh/e-drmm.htm">Explanation of drmm</A>.
</UL>
<DT>24 September 1997 - UPDATES FOR nmh-0.17
<DD><UL>
<LI>
Added info about
<A HREF="mh/theswi.htm#index2">the <TT>profile:</TT> line</A> and
<A HREF="mh/theswi.htm#index4">the <I>-version</I> switch</A> to the
renamed section
<A HREF="mh/theswi.htm">The -help and -version Switches</A>.
<LI>
Documented <I>flist</I> in two places:
explanation and examples in the new section
<A HREF="mh/morseq.htm#flist">Searching for Sequences with flist</A>,
and a summary of the command and options in the new
<A HREF="mh/r-flist.htm">flist Reference Guide</A> (as well as a pointer
to the new reference page from the overall
<A HREF="mh/mhrg.htm">MH Reference Guide</A>).
<LI>
Mentioned that the <I>mhook</I> manual page has been split into three
pieces -- did it with notes in the
<A HREF="mh/ch-pnma.htm#index2">introduction to the chapter</A>
<I>Processing New Mail Automatically</I> and in the section
<A HREF="mh/ruyomfi.htm">Running Your .maildelivery File</A>.
<LI>
In the section <A HREF="mh/wormes.htm">Working with Draft Messages</A>,
added note about the new <I>mh-draft</I> manual page.
<LI>
In the section
<A HREF="mh/usilin.htm#UsiSymLi">Using Symbolic Links</A>,
added a warning about
<A HREF="mh/usilin.htm#index7">problems with <I>folder -recurse</I>
and <I>flist -recurse</I></A>.
<P>
Added a related note to the section
<A HREF="mh/rem.htm#BetWay">Improve rmm: use rmmer</A>
about
<A HREF="mh/rem.htm#index8">advantages of a central <I>+DELETE</I> folder</A>
with nmh.
<LI>
Covered the <TT>Delivery-Date:</TT> header field in the sections
<A HREF="mh/thmafid.htm">The .maildelivery File in Detail</A> (for
<I>slocal</I>) and a <A HREF="mh/othinc.htm#index13">new subsection of 
<I>Less-used inc Features</I></A>.
<LI>
Covered <I>mhn -build</I> in 
<A HREF="mh/confmhn.htm#index31">Composing Content: mhn-compose-</A> and
the <A HREF="mh/r-mhn.htm">mhn Reference Guide</A>.
<LI>
Retitled the section
<I>mhn Editing and automhnproc</I> to become
<A HREF="mh/wormes.htm#mhEdanau">Building MIME Drafts</A>,
and changed the section <I>The automhnproc</I> to its new name
<A HREF="mh/confmhn.htm#Theautmh">Building MIME Drafts Automatically</A>.
Reworked each of those sections to explain the <TT>automimeproc:</TT>
and <TT>buildmimeproc:</TT> MH profile entries.
Mentioned the
<A HREF="mh/wormes.htm#index1"><I>mh-draft</I>(1) manual page</A>.
<P>
Also, in quite a few files,
mentioned typing <I>mime</I> instead of <I>edit mhn</I> at the
<TT>What now?</TT> prompt.
<LI>
Added note to say that nmh doesn't have the
<A HREF="mh/thecom-2.htm#index2">998-message limit in <I>mhpath</I></A>.
<LI>
Retitled the sections on the MH <I>packf</I> and <I>packmbox</I>
commands to just
<A HREF="mh/pamiafwp.htm#packf">MMDF Format</A> and
<A HREF="mh/pamiafwp.htm#packmbox">UUCP Mailbox Format</A>.
Re-did those sections to explain nmh <I>packf</I>, which handles the
job of both MH commands.
Also fixed the sections
<A HREF="mh/r-packf.htm">packf Reference Guide</A> and
<A HREF="mh/r-packmb.htm">packmbox Reference Guide</A>.
<LI>
Updated the sections
<A HREF="mh/samimfr.htm">Storing in Mailbox Files: rcvpack</A>
and <A HREF="mh/r-rcvpac.htm"> rcvpack Reference Guide</A>
to cover the new <I>-mbox</I> and <I>-mmdf</I> options.
<LI>
Now the sections
<A HREF="mh/nmenorc.htm">New Message Notification: rcvtty</A> and
<A HREF="mh/r-rcvtty.htm">rcvtty Reference Guide</A>
document the nmh <I>-width</I> option.
<LI>
Documented nmh <I>folder</I>, <I>mbox</I> and <I>mmdf</I> actions in the section
<A HREF="mh/thmafid.htm#ThmArac">Third .maildelivery Argument: Action</A>.
<LI>
Covered the new
<A HREF="mh/ruyomfi.htm#index3"><I>slocal -suppressdup</I></A> switch.
<LI>
Mentioned improved <I>slocal</I> debugging in the section
<A HREF="mh/debugti.htm#index2">slocal Debugging Tips</A>.
<LI>
In the section
<A HREF="mh/morsca.htm#sca">scan Format Files</A>,
showed <I>scan.unseen</I>.
<LI>
Mentioned <I>show -checkmime</I> and <I>-nocheckmime</I>
in the sections
<A HREF="mh/remime.htm#index25">Alternatives to mhn</A>
and <A HREF="mh/r-show.htm">show Reference Guide</A>.
<LI>
Changed title of the section
<I>The mhnproc</I> to
<A HREF="mh/remime.htm#Themhnpr">The mhnproc or showmimeproc</A>
and mentioned <I>showmimeproc</I>.
<LI>
Retitled the section <I>MH Library Directory</I> to
<A HREF="overall/mhlibdir.htm">Library and Etcetera Directories</A>.
Explained the nmh <I>etc</I> directory, and
showed the almost-undocumented <I>mhparam etcdir</I> command.
Changed sections that point to it and would need nmh etcetera directory.
<LI>
Re-titled the section <I>MH</I> to
<A HREF="mh/mh-2.htm">MH and nmh Source Code</A>.
Added pointer to nmh source.
</UL>
<DT>22 September 1997
<DD><UL>
<LI>
Renamed <A HREF="mh/sencom.htm">the section</A>
<I>Sending Files; Using mhmail and viamail</I> to just
<I>Sending Files</I>.
Split section into three subsections for <I>mhmail</I>, <I>viamail</I>,
and <I>append</I>.
Also added a hint on making <I>append</I> create MIME messages.
</UL>
<DT>20 September 1997
<DD><UL>
<LI>
Added a sample Perl script named <I>automhn</I> to the section
<A HREF="mh/confmhn.htm#Theautmh">The automhnproc</A>.
It's explained in the new file <I>mh/e-automh.htm</I>,
<A HREF="mh/e-automh.htm">Explanation of automhn</A>.
<LI>
Added short sections about PGP support in MH 6.8.4 in the two new sections
<A HREF="mh/remime.htm#ReaPGP">Reading PGP Messages</A> and
<A HREF="mh/senove.htm#SenPGP">Sending PGP Messages</A>.
</UL>
<DT>11 September 1997
<DD><UL>
<LI>
By default, <I>slocal</I> only matches fixed strings in your
<I>.maildelivery</I> file.
I added a section that introduces the
<A HREF="mh/thmafid.htm#rcvsearch"><I>rcvsearch</I> script</A> and a new file
<A HREF="mh/e-rcvsea.htm">Explanation of rcvsearch</A> that shows
and explains the script.
<I>rcvsearch</I> allows full regular expression matching of message
headers and bodies.
<LI>
Explained how to
<A HREF="mh/altmhpr.htm#TvaMaHa">run the <I>vacation</I> mail handler
from the <I>.maildelivery</I> file</A>.
</UL>
</DL>
<H3>Minor Changes</H3>
<DL>
<DT>28 January 1999
<DD><UL>
<LI>
mh-e machinery put in place to replace former black magic used to
produce mh-e distributions from Texinfo source.
No user visible changes other than removing "Under development" from
<A HREF="mh-e/index.html">the mh-e section home page</A>.
</UL>
<DT>28 September 1997
<DD><UL>
<LI>
Added new section, 
<A HREF="mh/morabo.htm#Web">World Wide Web Pages</A>,
with pointers to Web pages about MH, nmh, <I>exmh</I> and <I>mh-e</I>.
</UL>
<DT>26 September 1997
<DD><UL>
<LI>
Documented
<A HREF="mh/reprep-2.htm#index14"><I>repl -mime</I></A> in the section
<I>Replying to Messages with MIME</I>
and in the <A HREF="mh/r-repl.htm">repl Reference Guide</A>.
Also documented the bug where the
<A HREF="mh/usimim.htm#index10"><TT>#forw</TT> directive ignores the
description field</A> that's added by <I>repl -mime</I> (or by hand).
<LI>
Split the <I>Acknowledgements</I> section into two parts.
The second part is for the
<A HREF="overall/ack.htm#online1">Online Edition</A>.
</UL>
<DT>25 September 1997
<DD><UL>
<LI>
Added more info to the introduction of the section
<A HREF="mh/cosemime.htm">Composing and Sending MIME Messages</A>.
</UL>
<DT>24 September 1997
<DD><UL>
<LI>
Mentioned <I>flist</I> in the section
<A HREF="mh/shomes.htm#MesRea">Messages You Haven't Read</A>.
</UL>
<DT>22 September 1997
<DD><UL>
<LI>
Added information about
<A HREF="mh/fol.htm#index46">transferring messages between hosts</A>.
</UL>
<DT>20 September 1997
<DD><UL>
<LI>
Explained
<A HREF="mh/mh-2.htm">where to get MH 6.8.4</A>
(it's a patch release, and not in the usual places).
<LI>
Updated the
<A HREF="mh/finpic.htm#fpick">section about <I>fpick</I></A>, and
<A HREF="download/split/mh/bin/fpick"><I>fpick</I> script</A> itself,
to version&nbsp;1.5.
<LI>
Put the latest addresses, and information on <I>nmh-workers</I>,
in the appendix section <A HREF="mh/morabo.htm#MaLi">Mailing Lists</A>.
</UL>
<DT>19 September 1997
<DD><UL>
<LI>
Made two changes in the subsection
<A HREF="mh/senove.htm#edit">
<TT>edit <I>editor</I></TT> (or <TT>e <I>editor</I></TT>)</A>:
(part of the section
<A HREF="mh/senove.htm#WhaPro">What now? -- and the whatnow Program</A>):
mentioned automhnprocs; added an example of <I>edit spell</I> and
<I>edit grep</I> to find and search for misspellings.
</UL>
<DT>14 September 1997
<DD><UL>
<LI>
Fixed two typos, and added one more example profile entry, to the section
<A HREF="mh/confmhn.htm#DiOChSmc">Displaying Other Character Sets: mhn-charset-</A>.
</UL>
<DT>13 September 1997
<DD><UL>
<LI>
In the <A HREF="mh/mhstr.htm#SumMFS">Summary of MH Format Strings</A>,
explained how to put a literal <TT>%</TT> or <TT>\</TT> in a format
string.
</UL>
<DT>12 September 1997
<DD><UL>
<LI>
Added a new number, and more information,
to the numbered list at the start of the section
<A HREF="mh/angen.htm#index4">An MH Profile, in General</A> --
about multiple MH profiles and MH profile conflicts.
Also added note, to second paragraph of section,
that only the first profile entry for a command is recognized.
<LI>
In the section
<A HREF="mh/redmerc.htm">Redistributing Messages: rcvdist</A>,
showed how to use MH aliases with <I>rcvdist</I>.
<LI>
Added an example of changing the <I>xmh</I> font to the end of the section
<A HREF="xmh/comliop.htm#TooOpt">Toolkit Options</A>.
<LI>
Documented the 998-message (MAXARGS) limit in the section
<A HREF="mh/thecom-2.htm">The mhpath Command</A>
and gave workarounds.
<LI>
In the section
<A HREF="mh/fol.htm#index45">Moving and Linking Messages: refile</A>,
showed how to use shells' curly brace operators
(<TT>{&nbsp;}</TT>) to make multiple folder names.
</UL>
<DT>11 September 1997
<DD><UL>
<LI>
Moved one sentence in the section
<A HREF="mh/fol.htm#Movref">Moving and Linking Messages: refile</A>.
<LI>
Added example MH sequences file lines to the
<A HREF="mh/morseq.htm#index14">
NOTE about Previous-Sequence: causing long lines</A>.
<LI>
The section <A HREF="mh/annann.htm">Annotating Headers with anno</A>
said, incorrectly, that <I>pick</I> will find only the first annotation
in a message.
Fixed.
<LI>
In the section
<A HREF="mh/othinc.htm#Newinc">If New Messages Arrive</A>,
noted that <I>inc</I>'s locking might not work.
<LI>
Added new short section to explain that <I>xmh</I> has a
<A HREF="xmh/reamai.htm#MeNuLi">limit of 9999 messages per folder</A>.
<LI>
Updated the explanation of the MH command version
<A HREF="mh/verfor.htm#fFfHur"><I>forwr</I></A>.
Now it shows how to use both the sender's name and subject in the 
subject of the forwarded message.
<LI>
Added a reminder to the introduction for
<A HREF="xmh/seapic.htm"><I>xmh</I>'s <TT>Pick</TT> command</A>
not to press RETURN after a search string.
<LI>
Added info to the programming section
<A HREF="mh/getmenu.htm">Getting Message Numbers</A>
about handling empty or undefined sequences.
</UL>
<DT>10 September 1997
<DD><UL>
<LI>
In the section
<A HREF="mh/e-distpr.htm">Explanation of distprompter</A>, changed
<TT>0&lt;&amp;-</TT> to <TT>0&lt;&amp;5</TT>.
<LI>
Removed a comma in the section
<A HREF="mh/shomes.htm">Showing and Printing Messages</A>.
</UL>
</DL>

<H2>Previous Update, 30 May 1997</H2>
<H3>Major Changes</H3>
<DL>
<DT>30 May 1997
<DD>
Changed the book title from
<I>MH &amp; xmh: Email for Users &amp; Programmers</I> to just
<I>MH &amp; nmh: Email for Users &amp; Programmers</I>.
The emphasis on <I>xmh</I> in the original book really wasn't right
because it has also covered <I>exmh</I> and mh-e since the third edition.

<DT>29 May 1997
<DD>
Updated <A HREF="copying.htm"><I>copying.htm</I></A>, the terms for using
and redistribting the book, to explain the terms for new pages that weren't
in the original print edition.

<DT>27 May 1997
<DD>
The book's example scripts used to be stored in HTML files named <I>s-*.htm</I>.
I moved them to a new subdirectory,
<A HREF="download/split/"><I>download/split/</I></A>,
and changed all the pages that pointed to the old locations.
This will let people download individual scripts instead of needing to get
the whole archive.
Doing this meant changes (mostly minor) to a lot of pages.
Made related changes, and updates for online version of book, to
<A HREF="mh/obtpro.htm">Obtaining Example Files From This Book</A> and
<A HREF="mh/pritba.htm">Programs in This Book's Archive</A>.

<DT>26 May 1997
<DD>
Added new section about
<A HREF="mh/pamiafwp.htm#rfl"><I>rfl</I></A>, a script for merging
messages into a storage digest.
Also added
<A HREF="mh/rfl_man.htm">an <I>rfl</I> manual page</A> and
<A HREF="mh/e-rfl.htm">installation instructions</A>.

<DT>25 May 1997
<DD><UL>
<LI>
Added new section
<A HREF="mh/verpic.htm">Versions of pick: Repeatable Custom Searches</A>.
It explains how to save <I>pick</I> commands that you run often -- as MH
command versions or shell aliases/functions.
<LI>
At the end of the section <I>Searching More Than One Folder</I>,
added a new section on
<A HREF="mh/finpic.htm#fpick">the <I>fpick</I> script</A>.
It searches for a message in many folders.
</UL>

<DT>24 May 1997
<DD>
Added information about formatting the headers of <I>forw</I> messages.
The section now called
<A HREF="mh/forfor-2.htm#NoNefofo">Formatting the Header</A>
used to be called <I>No Need for forwcomps</I>; I added a description of
the <I>forwedit</I> script and a paragraph about the <I>forwr</I> MH
command version.
Made new sections for those two changes:
<A HREF="mh/e-forwed.htm">Explanation of <I>forwedit</I></A> and
<A HREF="mh/verfor.htm#fFfHur">forwr: Format forw Headers using repl</A>.

<DT>21 May 1997
<DD><UL>
<LI>
Updated the section
<A HREF="mh/drafil.htm#TherepFi">The replcomps File</A>
(and its <A HREF="mh/drafil-o.htm">special subsection
for replcomps lines 1-2 before MH 6.8</A>).
Explained adding a <TT>References:</TT> field.
Did other small cleanup all through the section.
<LI>
Added a new section,
<A HREF="mh/hea.htm#ReMeTh">References: Message Threading</A>,
about the <TT>References:</TT> header field.
</UL>

<DT>19 May 1997
<DD><UL>
<LI>
Added <A HREF="mh/pamiafwp.htm#rfl">Joining Messages with rfl</A>,
about a Perl script for making message-storage digests.
<I>rfl</I> is an alternative to making new folders or adding sequences.
Renamed the section holding it (and <I>packf</I> and <I>packmbox</I>)
from <I>Pack Messages into a File</I> to
<I>Files with Multiple Messages</I>; changed its title in links from the
previous and next files.
Made a link to the new <I>rfl</I> section from the section
<A HREF="mh/stormess.htm">Storing Messages</A>.
<LI>
Added new section
<A HREF="mh/mhanthsh.htm#UsEnVawM">Using Environment Variables with MH</A>.
Shortened an existing part of the section
<A HREF="mh/atset.htm">A Test Mail Setup</A>
and made it point to the new section.
</UL>

<DT>18 May 1997
<DD><UL>
<LI>
Added an
<A HREF="mh/mh.htm#aligrep"><I>aligrep</I> script</A>
for searching alias file in the section
<I>Showing MH Aliases with ali</I>.
Changed the section title to just <I>Showing MH Aliases</I>.
Added another section explaining
<A HREF="mh/e-aligre.htm">how to set up <I>aligrep</I></A>.
<LI>
Added a new section called
<A HREF="mh/finpic.htm#FiMetoYo">Finding Messages to Yourself with pick2me</A>
about the <I>pick2me</I> script.
</UL>

<DT>16 May 1997
<DD><UL>
<LI>
In the section
<A HREF="mh/mh.htm#MakAli">Making MH Aliases</A>,
added these tips:
<A HREF="mh/mh.htm#index17">backwards recursion of aliases</A>,
<A HREF="mh/mh.htm#index5">using UNIX secondary groups in alias files</A>,
<A HREF="mh/mh.htm#index18">using RFC822 groups in alias files</A>,
and
<A HREF="mh/mh.htm#index16">editing the aliases file</A>.
<LI>
Added a new section,
<A HREF="mh/pccewca.htm#ChfoFoCh">Check for Folder Changes</A>,
that helps you notice when folders have changed.
<LI>
Added a new section,
<A HREF="mh/qufoac.htm">Quick Folder Access</A>,
that shows ways to access folders quickly: folder name completion and
abbreviations.
Also fixed links from the next and previous sections.
</UL>

<DT>15 May 1997
<DD>
Added a new section,
<A HREF="mh/senove.htm#SDSaBR">Message Transfer; Sighted and Blind Recipients</A>,
about message envelopes vs. header addresses and how MH handles
groups (distribution lists) and blind copies (<TT>bcc:</TT>).

<DT>21 December 1996
<DD>
Revised index entries.
Added lots of index entries, especially in the sections:
<UL>
<LI>
<A HREF="mh/hl.htm"><I>mhl</I></A>
<LI>
<A HREF="mh/mhstr.htm">MH format</A>
</UL>
Made small changes in the text of some files so index entries would
work better.

</DL>

<H3>Minor Changes</H3>
<DL>
<DT>25 May 1997
<DD><UL>
<LI>
Renamed the section <I>Storing Sequence Name in Your MH Profile</I> to 
<A HREF="mh/finpic.htm#StoPro">Saving Time with Your MH Profile</A>.
Added a link from it to the new <I>Versions of pick</I> section.
<LI>
Fixed very small typo (deleted a single space) in
<A HREF="mh/usimim.htm#index9">Sending MIME Mail</A>.
<LI>
Mentioned using <I>send -mime</I> when sending MIME messages in
<A HREF="mh/hea.htm#index21">Bcc: Blind Carbon Copies</A>.
<LI>
Added missing <TT>%</TT> and <TT>\</TT> characters to
<A HREF="mh/hea.htm#index24">a <I>vi</I> command that runs <I>scan</I></A>.
<LI>
Changed last sentence in the section
<A HREF="mh/fol.htm#RenFol">Renumbering Messages in a Folder</A>
to say <I>folder -pack</I> instead of <I>folder</I>.
<LI>
Added a cross-reference about shell loops to the section
<A HREF="mh/fol.htm#WiaMD">Working in an MH Directory</A>.
</UL>

<DT>22 May 1997
<DD><UL>
<LI>
Added
<A HREF="mh/autmes.htm#index2">a paragraph about standard signature syntax</A>
(starting them with two dashes and a space).
<LI>
In the sections
<A HREF="mh/reprep-2.htm#Selque">Selective Replies with -query</A> and
<A HREF="mh/mhstr.htm#MfFuEs3">
Table: MH-format Function Escapes (3 of 3)</A>,
mentioned that the <I>repl -query</I> switch works with the
<I>(formataddr)</I> MH-format function escape.
</UL>

<DT>21 May 1997
<DD>
Added an example to the section
<A HREF="mh/finpic.htm#picCom">picking Miscellaneous Fields</A>
to show how to follow message threads.

<DT>20 May 1997
<DD><UL>
<LI>
Added
<A HREF="mh/mhstr.htm#index39">a few paragraphs</A> to 
the description of the <I>scan.more</I> format file.
They clarify what happens in a control escape that has multiple
function escapes after a single condition.
<LI>
Fixed two bugs in
<A HREF="mh/mhstr.htm#TreadFF">the replcomps.addrfix format file</A>:
the <TT>%(void(width))</TT> escape was in the wrong place, and
the address in the <TT>In-reply-to:</TT> field needed to be commented
(with parentheses) so it wouldn't cause an illegal/confusing format in
that field.
<LI>
Fixed two places in
<A HREF="mh/chanam.htm#index2">Changing MH Directory Name</A>
that talked about a <I>shell's</I> "folder stack"; they should have
said "directory stack".
</UL>

<DT>19 May 1997
<DD><UL>
<LI>
Added an <I>mscan</I> shell function, for running <I>scan</I> and then
<I>mhn -list</I>, to the section
<A HREF="mh/limimepa.htm">Listing MIME Message Parts</A>.
<LI>
Fixed bug in
<A HREF="mh/setacc.htm#index3">a <I>find</I> command
for setting directory permissions</A>.
<LI>
Added index entries and cross-references to info about shell loops for
the sections
<A HREF="mh/finpic.htm">Finding Messages with pick</A>,
<A HREF="mh/fol.htm">Folders</A>,
<A HREF="mh/remime.htm">Reading MIME Messages</A>,
and
<A HREF="mh/usilin.htm">Using Links</A>.
</UL>

<DT>16 May 1997
<DD><UL>
<LI>
Added a few cross-references pointing to other sections from
<A HREF="mh/hea.htm#ComHea">Fields You Add to a Header</A>.
Also added a paragraph about
<A HREF="mh/hea.htm#index22">creating folders from an fcc: header field</A>.
<LI>
A few tweaks to the section
<A HREF="mh/forfor-2.htm#CreDig">Creating Digests</A>.
<LI>
Fixed error in "Previous" page links in the chapter introduction to
<A HREF="mh/ch-nvomc.htm">New Versions of MH Commands</A>
(and then changed the link again -- to point to the new
"Quick Folder Access" section).
</UL>

<DT>15 May 1997
<DD><UL>
<LI>
Expanded the
<A HREF="mh/ch-rymwm.htm">chapter introduction, Reading Your Mail with MH</A>.
<LI>
Added a note about <I>mhn</I> drafts to the end of the section
<A HREF="mh/rem.htm#RecMes">Recovering a Removed Message</A>.
</UL>

<DT>21 December 1996
<DD>
Added links, and removed comments to the author (oops!), in
<A HREF="overall/ap-rg.htm">Reference Guide home page</A>
(<I>overall/ap-rg.htm</I>).

</DL>

<P ALIGN=CENTER>
[<A HREF="index.htm">return-to: This Book's Home Page</A>]
[<A HREF="toc-jump.htm">Table of Contents</A>]
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</P>
<HR>
<EM>Last change $Date: 1999/10/10 05:14:05 $</EM>
<P>
This file first appeared in the updated online edition of the book
<I>MH &amp; nmh: Email for Users &amp; Programmers</I>, by Jerry Peek.
Copyright &copy; 1997 by the author.
This file is freely available; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation.  For more information, see
<A HREF="copying.htm">the file <I>copying.htm</I></A>.
<P>
<ADDRESS>
Suggestions are welcome:
<A HREF="http://www.jpeek.com/">Jerry Peek</A>
<A HREF="mailto:jpeek@jpeek.com">&lt;jpeek@jpeek.com&gt;</A>
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