`write'++: !interactive: urlxenc() attachment paths (Ralph Corderoy)..

[s-mailx.git] / NEWS

S - n a i l / S - m a i l x  N e w s
====================================

v14.9.0 ("Crow"), 201?-??-??
----------------------------

This is a major feature release.
  Preview 1, 2016-09-16:
    IMAP gone, better don't ^C during macros.  Misses major
    components of the final release.

I didn't know where S-mailx will truly end up with, but only knew
i wanted to overcome the technical shortcomings, have a better user
experience (regarding the software) and that i wanted to have, e.g.,
NNTP support.

During development of this release it became clear that the general
usage will be changed in v15, backward incompatibly, and move towards
sh(1)ell style command line usage, that is to say, we will turn over and
will start parsing regular shell tokens, instead of comma-separated
lists, OR space-separated lists or whatever, and will expand _any_ value
content sh(1)ell-compatibly, instead of not at all in general and only
\t and \n in some specific others etc.:

  wysh set a='${TMPDIR}\t/' b="${TMPDIR}\t/" c=$'\${TMPDIR}\t/'
  echo a=$a b=$b c=$c
  a=${TMPDIR}\t/ b=/tmp\t/ c=/tmp /
..
  set a='${TMPDIR}\t/' b="${TMPDIR}\t/" c=$'\${TMPDIR}\t/'
  echo a=$a b=$b c=$c
  a=${TMPDIR}\t/ b=${TMPDIR}\t/ c=$\${TMPDIR}\t/

(But don't do that).  All this is documented in COMMANDS#?.
Today only new commands (like `bind', `customhdr' etc.), but also
attachment selection, `remove' and `write' use this, others, like `set',
can optionally support it with a new command prefix: `wysh'.

Credits, in order of commit appearance: Antonio Radici, Aharon Robbins,
Mike Frysinger, Predrag Punosevac, Michael Convey, Hariskar,
Rudolf Sykora, Martin Neitzel, Gavin Troy, Salvatore Bonaccorso,
Todd C. Miller, Sergey Matveev, Robert Elz, Mantas Mikulėnas,
Respiranto, Jens Schleusener, Walter Alejandro Iglesias, Ralph Corderoy,
Thomas Dickey, Afan, Justin Ellingwood, Ingo Schwarze, Viktor Szépe,
Gaetan Bisson, Juan RP, William Yodlowsky, Hilko Bengen, Matthew Dillon,
Colin Watson and Donald Mugnai.

We welcome Antonio Radici, Mike Frysinger, Predrag Punosevac,
Michael Convey, Rudolf Sykora, Todd C. Miller, Robert Elz,
Jens Schleusener, Walter Alejandro Iglesias, Thomas Dickey, Afan,
Justin Ellingwood, Viktor Szépe, Juan RP, Matthew Dillon, Colin Watson
and Donald Mugnai in THANKS.

Apologies: Sergey Matveev.  Members of the Roff community which await
progress.

  In the following numbers in [] reference a commit hash or a topic
  branch name.  mdocmx(7) anchors are denoted by a number-sign #:
  typing "^A ANCHOR" while reading the man(1)ual in a capable less(1)
  will scroll to the manual's Point-Of-Interest, and pointing a web-
  browser to the "#ANCHOR" of the online manual will do so, too.
  Commits can be browsed by appending the commit hash to
    https://git.sdaoden.eu/cgit/s-nail.git/commit/?id=

NOTES, ChangeLog (packager-affine)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

* This release brings backward incompatibilities, especially for
  packagers and interactive use cases!

  + Anything which was WANT_xy before is now OPT_xy, and
    compiled-in paths and values, like PREFIX or PAGER, have
    gained a VAL_ prefix (thus VAL_PREFIX and VAL_PAGER).

    This is _not_ true for non-persistent or environmental values,
    e.g., DESTDIR, CC, etc, and also not for the overwritable
    program variables during configuration, e.g., $awk.

  + SENDMAIL -> VAL_MTA, SENDMAIL_PROGNAME -> VAL_MTA_ARGV0,
    MAILSPOOL -> VAL_MAIL.

  + The make system now needs config..build..install or
    all..install or tangerine (config..build..test..install).

  + The `build' phase can be parallelized by setting the MAILJOBS
    environment variable, e.g., "make MAILJOBS='-j 4' build".

  + DESTDIR will no longer be tracked in the configuration.
    (Gaetan Bisson)

  + Set the new OPT_CROSS_BUILD to avoid feature runtime tests,
    only compile- and link-availability will be tested.  (Juan RP)

  + VERBOSE is implemented straight, but must be given at
    configuration time in order to become honoured.
    (William Yodlowsky)

  + ADDCFLAGS / ADDLDFLAGS -> EXTRA_CFLAGS / EXTRA_LDFLAGS

  + The LD_LIBRARY_PATH etc. building processes will skip any path
    which contains the string "fakeroot".  (Hilko Bengen)

  + We honour a set SOURCE_DATE_EPOCH environment variable.
    [df4954c]  (reproducible-builds.org; Colin Watson)

  + Packagers should have received diffs against v14.8.10
    packaging files.

  + These are upward compatible changes.

- To support RFC 1524 a.k.a. .mailcap files (see below) many
  "trigger"-characters have been added for *pipe-TYPE/SUBTYPE*#?,
  which may (rarely) affect existing values. [topic/mimepipe.2]

- *NAIL_{HEAD,TAIL}* have been obsoleted in favour of
  *message-inject-head*#? and *message-inject-tail*#?. [7064ef2]

- *NAIL_HIST{FILE,SIZE}* have been obsoleted in favour of
  *history-file*#? and *history-size*#?. [4fde608]

- -H#? and -L#? have been decoupled: it used to be -e#? -L#?
  instead! [5296040]

- Colour support has been changed backward in- and upward (from user
  interface side) compatibly, manual section "Coloured display"#?
  [topic/colour.2, topic/termcap.2, topic/wysh]:

  o New commands: `colour'#? and `uncolour'#?.
    You can define context-sensitive, terminal-capability-sensitive
    settings, e.g.:

      if terminal && $features @= +colour
        colour iso  view-header ft=bold,fg=magenta,bg=cyan
        colour 256  view-header ft=bold,fg=208,bg=230 subject,from
        colour mono view-header ft=bold
        colour mono view-header ft=bold,ft=reverse subject,from
      endif

  o The variable *colour-pager*#? defines whether colour and font
    attribute sequences should be generated when viewing something in
    $PAGER.

  o Set the variable *colour-disable*#? to turn colour off without
    affecting established settings.

  o It is deduced via termcap(5) (see below) a.k.a. *termcap*#?
    whether the terminal supports colors, e.g.,
    "s-nail -Stermcap=Co#256".

  o Support for 256-colour terminals. (Gavin Troy)

- `source'#? series support shell pipes if the last character of
   the "filename" ends with a vertical bar |, e.g. [c1c1ee5]

      source 'gpg -qd ~/.s-nailrc-private.gpg |'

- Shell pipes are also supported as targets for `move'#?,
  `copy'#? etc., e.g., [0d0c523]

      copy . '| cat; echo huhu'

- Support for custom headers via the new `customhdr'#? and
  `uncustomhdr'#? commands.  Because we don't have "scope-local"
  environments yet there temporarily is also *customhdr*#?,
  which can be covered by `localopts'#?. [topic/customhdr]
  (Sergey Matveev)

  o Support for *ORGANIZATION* has been dropped.
    This environment variable is a non-portable invention,
    a custom header.

  o In compose mode `~e'#? supports _any_ header.

- New -:#? command line option can be used to more easily select
  which startup files should be loaded. [5d52578]
  (Robert Elz)

- `account's#? and *folder-hook*s#? now have `localopts'#?
   enabled by default. [3fd94e3]

   o Note: it is likely that in the future "scope-local" environments
     will be implemented, then also covering things like shortcuts etc.,
     and some thing like a "global" prefix to extend a setting to the
     global namespace.  Just to make you aware.  (Think TeX.)

- A first simple form of compose-mode hooks has been implemented:
  *on-compose-enter*#? and *on-compose-leave*#? can be set to
  macros which get invoked at appropriate times, with `localopts'
  enabled (which extend until the message is sent). [d6902e1,3fd1db4]
  (Jens Schleusener, Rudolf Sykora)

- "The .netrc file"#?

  o gained support for comments. [abf2e5d]
    (Walter Alejandro Iglesias, Ralph Corderoy)

  o `netrc'#? now has a "load" subcommand. [30d0bb7]

  o the new *netrc-pipe* obsoletes OPT_AGENT and
    *agent-shell-lookup* and can be used to load an encrypted
    .netrc file, e.g.:

      wysh set netrc-lookup netrc-pipe='gpg -qd ~/.netrc.gpg'

    E.g., this is in usual .netrc syntax and thus possibly much
    nicer than saying "source 'gpg -qd ~/.credentials.gpg |'".

- termcap(5) / terminfo(5) support has been changed backward in- and
  upward (from user interface side) compatibly, please read
  "On terminal control and line editor"#? [topic/termcap.2]

  o OPT_TERMCAP is by default enabled.
    The new, by default enabled, configuration option
    OPT_TERMCAP_VIA_TERMINFO can be used to (try to) use terminfo(5)
    instead.

  o The variable *termcap*#? can be used to freely define or override
    terminal capabilities, *termcap-disable*#? will disable
    interaction with the chosen library, leaving only *termcap* in
    charge.

  o The builtin command line editor has been rather completely rewritten
    to be the Mailx-Line-Editor (OPT_MLE, default yes), and supports
    wide glyphs (if possible), infinite line lengths (2 GB) and more.
    Tabulator expansion is no longer an option (but needs
    fnmatch(3)).

  o Optionally (OPT_KEY_BINDINGS, default yes) it has become possible
    to freely define key bindings for the MLE via the new `bind'#?
    and `unbind'#? commands.  These key bindings can make use
    of termcap(5) and/or terminfo(5) names.  The MLE will install
    a set of default bindings, more with OPT_TERMCAP: "bind*".

  o OPT_EDITLINE and OPT_READLINE support have been dropped.
    The new MLE should not miss anything.  Does it?
    Tip: in an UTF-8 locale try "touch /tmp/hall{,öchen}" and then
    autocomplete that: once, then ^Q, and again.

- `source'#? can be used in `call'ed#? macros.
  What sounds so innocent replaced an entire machinery and got rid of
  a brilliant idea of Kurt Shoens from the 70s, but which never worked
  with Nail/Heirloom extensions, namely macros, and in right order.

  Accompanying this -X#? can be used to define macros and run them
  etc.  We're still not there, S-nail v15 -- then S-mailx! -- will
  change the entire codebase to use SystemV signal handling, instead of
  going the BSD way that is, like used here, both, very expensive due to
  the immense amount of signal managing systemcalls and insecure due to
  almost uncontrollable longjmp()s.  This should work:

    s-nail -X'define x {' -Xversion -Xx -X'}' -X'call x'

- Internal and environment variables are now explicitly _defined_ and
  _tracked_ after variable handling has been rewritten completely.
  This results in standard-compatible behaviour.
  [topic/okeys-attr.2]

  o Notes:
    + This means that, e.g., "password=NOT_SECRET s-nail" will **NOT**
      work no more, since *password*#? is an internal variable!

    + But if you do, e.g., "set TMPDIR=~/tmp", then this will also be
      reflected in the program environment (it is an environment
      variable) and thus affects child processes.

    + Therefore we no longer have `setenv' and `unsetenv'.

    + To integrate other (unkown) environment variables transparently
      into our variable management, the new command `environ'#?
      needs to be used, e.g., "environ set NEWVAR=valye" or
      "environ link EXISTINGVAR".

  o -u#? / *LOGNAME*#? (*USER*) handling has been redefined, and
    "-u USER" is now exactly the same as "-f %USER", and *LOGNAME* (and
    *USER*) is actively set to the active user. [d8f7cd7]  (Afan)

   (*LOGNAME*#? is POSIX standardized and henceforth used and preferred
   over *USER*, which came from BSD. [e96baaa]  (Todd C. Miller))

  o *MAIL*#?, as the user's primary system mailbox, now supports the
    usual file name expansions. [e337e00]

- In the future (at least non-message-list) argument handling will be
  changed backward-incompatibly to be sh(1)ell compatible (and thus
  POSIX standardized).  New commands use it already today (`bind'#?,
  `colour'#?, `customhdr'#?), some others (most importantly,
  `set'#?) can be forced via the new `wysh' command prefix,
  as in: [topic/wysh]

    wysh set message-inject-tail=$'\n--steffen'
    bind base $'\cA,\x61' 'echo control-A and small a'

- We now actively manage *umask*#?: 0077 by default, but an empty
  string will use the setting that is active upon startup.
  Like any change to (known) environment variables this setting
  will also be inherited by any child process. [1bd8e48]
  (Walter Alejandro Iglesias)

- Anything SENDMAIL / *sendmail*-ish has been renamed to *mta*,
  e.g., *mta*#?, *mta-arguments*#?, *mta-no-default-arguments*#?,
  *mta-argv0*#?.

  The reason is that in v15 we won't even have *smtp*: it is just
  another form of MTA, and thus redundant.

  For now we support a hack that understands a file:// URL in
  *mta*, too, but that is the default if there is no protocol.
  E.g.: "set mta=smtp://a:b@xy.z"

- The "spamd" *spam-interface*#? is obsolete.  I haven't
  tested it since my main machine died, it is error prone since it
  assumes internals of the spamassassin interface, and there never
  was a speed improvement against "spamc".  (However it could react
  upon the current "is-spam" state of a message, which "spamc"
  doesn't allow.) [284db64]

- Some commands, like `set'#?, `list'#?, `mlist'#? etc.,
  now react upon the setting of *verbose*#? and *debug*#?.

ChangeLog
^^^^^^^^^

- The manual has seen another major overhaul, all the variables are now
  documented in a single, sorted list, and many clarifications should
  have been added. [topic/manual.10]
  (Predrag Punosevac, Michael Convey, Hariskar, Rudolf Sykora,
  Respiranto, Thomas Dickey, Donald Mugnai)

- *mime-counter-evidence*#? gained bit 4 (perform proper in-depth
  content inspection as necessary; set to 0xE for all bits).
  [topic/mimetype.2]  (Aharon Robbins)

- Maildir paths are now created recursively as necessary. [3c57c83]
  (Justin Ellingwood)

- -M#? and -m#? options have been added to enforce a special
  send mode that will flag standard input / the given file with the
  specified / detected MIME 'Content-Type:'.  This can be used to
  directly send, e.g., HTML log output.  Note that before v15 this
  is a bit restricted: you are not free to do anything. [f1a775b]
  (Viktro Szépe, Ralph Corderoy)

- Disallow symlinks on writable files (O_NOFOLLOW open(2)).
  [10990e4]  (Matthew Dillon)

- `retain'#?, `ignore'#? etc. now differentiate in between
  From (the From: header) and From_ (the MBOX ident).  [c83e153]

- `top'#? has been rewritten completely, `Top'#? is new.
  [1dc9bb6]

- `features' has been dropped, `version'#? extended. [b9e4e61]

git(1) shortlog (edited)
''''''''''''''''''''''''

f01291d extract_date_from_from_(): dig more invalid MBOXes (Antonio Radici)..
662982e Add OF_REGISTER_UNLINK, allow usage in Ftmp()
69bf721 *pipe-TYPE/SUBTYPE*: add "@" triggers and $NAIL_FILENAME_TEMPORARY..
bb5d0e2 *pipe-TYPE/SUBTYPE*: add "!" trigger ("needsterminal")
df8768b Add *mime-counter-evidence* bit 4 (Aharon Robbins)..
d3fe980 Ftmp(): drop "mode" argument (not wrong: Mike Frysinger)..
7abc368 Print all MIME_RELATED subparts when quoting
f6fbcc4 Add *mime-alternative-favour-rich*..
86159db nail.1: we support searching, really (Predrag Punosevac)
5b61a08 nail.1: talk about address lists (again) (Michael Convey)..
0eeffc4 nail.1: try improve states / MBOX etc. relation (Michael Convey)
43ea039 nail.1: what is an environment variable (Michael Convey)
13e0804 nail.1: fix typo (Hariskar (archlinux Wiki))
03d6af5 nail.1: more on sortability (Rudolf Sykora)..
4da9043 Not "binary", but "boolean" variables! (Predrag Punosevac)..
7064ef2 Add *message-inject-{head,tail}*, obsolete *NAIL_{HEAD,TAIL}*
4fde608 Add *history-{file,size}*, obsolete *NAIL_HIST{FILE,SIZE}*
36578d1 Add PS_SETFILE_OPENED (affects hooks), *bsdcompat*<>*emptystart*..
600d449 Drop the `inc' alias of and for `newmail'
5296040 Decouple -H from -L: it used to be -eL instead!
dad4e94 Obsolete *SYSV3*
c85f56d Support :d specifier for at least `from' (Martin Neitzel)..
7b753a8 Support `help' docstrings for `#', `-', plus..
30d0bb7 `netrc': add "load" subcommand to only load, not also "show"
b12e1ed Be more friendly when composing mails (Martin Neitzel)..
b50eac0 nail.1: use display/show not type/print (Michael Convey)..
6feafaf Add `search' alias for `from' (Predrag Punosevac)
a4e2612 Support 256-colour terminals (Gavin Troy)
16b57ab Drop `mono'+, change `colour' and `uncolour' commands..
cedde28 Finally: drop IMAP support!..
d535db0 Implement `dotmove': move the "dot" up or down by one
87a72c7 Ooops, always include commands, as c_cmdnotsupp if disabled!
c1c1ee5 `source': support shell pipes (if filename ends with "|")
8655aff Error framework: print UAGENT prefix (ident in pipes; Salvatore
        Bonaccorso)
e96baaa Introduce $LOGNAME, the POSIX equivalent of $USER (Todd C. Miller)
0d0c523 Support |PIPE targets for `move', `copy' ++..
76e6364 Add `customhdr' (Sergey Matveev)..
ad58c91 Support *customhdr*, too (Sergey Matveev)..
6322e0a Support _any_ user header via ~e (Sergey Matveev)..
19b3afb Drop support for $ORGANIZATION in favour of `customhdr'
77d4f5c Fix SSL init order, change *ssl-rand-file* behaviour..
8daeda9 send.c:sendpart(): "support" malformed messages..
eddf684 Drop *print-all-chars*
f733f61 Don't set *dot* in -# batch mode
5d52578 Add -: command line option (Robert Elz)..
53b5f07 README: use git(1) --single-branch (Mantas Mikulėnas)
8d0c7dd Allow "-q -" in non-interactive mode; -q and -t are mutual exclusive
420131f Fix mispelling: can|to be send->sent (Respiranto (archlinux Wiki))
7f3c11f `echo': don't expand via sh(1) no more, use internal mechanism
ddece18 main(): verify *expandargv* value content in case of OPT_D_V
8d5f709 mk-conf.sh: dump final summary into config.log, too
0dd85b1 n_iconv_open(): use *charset-unknown-8bit* also for "binary"..
d5a9c17 page_or_print(): never use $PAGER unless startup complete
bf889e4 (Shell) Variable expansion: support hyphens in names..
3fd94e3 Default `localopts' to YES for `account' and *folder-hook*s!
983d22f `if'+: allow "if ${VARNAME}" in addition to "if $VARNAME"..
d6902e1 Add *on-compose-{enter,leave}* hooks (Jens Schleusener, Rudolf
        Sykora)..
abf2e5d .netrc: support comments (Walter Alejandro Iglesias, Ralph Corderoy)..
37e0c26 nail.1: .netrc comma separator was in original Berknet parser! (Ralph
        Corderoy)
7e85aa9 Drop WANT_EDITLINE support..
3e6aa24 make.rc: enable WANT_TERMCAP by default
512069b Rewrite for a generic termcap(5) interface..
40522c3 nail.1: use -v option to cat(1) if available (Thomas Dickey)
cf3ccfe Deduce colours via *termcap* instead!; support all/*..
64eabef Turn NCL into M(ailx) L(ine) E(ditor)..
adb29c3 MLE: add "mle-position" and "mle-prompt" colour mappings
27f3e9d Add terminfo(5) support (via WANT_TERMCAP_PREFER_TERMINFO)..
  Note: later renamed to OPT_TERMCAP_VIA_TERMINFO
1aa64b6 Add WANT_KEY_BINDINGS..
ad61278 Add n_pager_{open,close}() -- _always_ termios(4) for $PAGER!
d935e65 (BWDIC!) Allow `source' in `call'ed macros..
c8c1393 n_lex_input(): truly support line continuation via backslash..
7f52ae7 make.rc+: add WANT_NOMEMDBG to allow valgrind(1)+ with DEBUG/DEVEL
2497240 homedir: if not $HOME, use pw_dir (of $LOGNAME or getpwuid())
d05aed4 mk-conf.sh: require one of (un)?setenv(3) and putenv(3)
94b3635 (BWDIC!) make.rc: add defaults _here_ (as VAL_xy, e.g., VAL_SENDMAIL!)
f0ac705 (BWDIC!) Rewrite variable handling..
724751e nail.1: drop `(un)?setenv' and *bsdset*; add `environ'
3fd1db4 Improve compose-hooks via new macro hooks..
f4577e6 FIX (fix?) `localopts'..
d8f7cd7 (BWDIC!) Redefine -u / $LOGNAME / $USER (Afan)..
e337e00 Support expansions in $MAIL!; more on `account's (Afan)..
d596d74 Compare *newfolders* case-insensitively (Justin Ellingwood)..
57744f9 Redefine *folder* / getfold->folder_query() / *HOME* (Justin
        Ellingwood)..
3c57c83 n_path_mkdir(): create recursively as necessary (Justin Ellingwood)
66553bc `list': with non-WS argument, don't sort alphabetically
b95e6be Introduce `wysh' command prefix to change argument parser..
08b8f48 Only support sh(1)-style quoting for some new commands..
665c6f8 `customhdr': disallow using control characters in bodies
67c2acb (BWDIC!) Only use new sh(1)-style quoting for attachments!
f4b0153 (BWDIC!) Only use new sh(1)-style quoting for `write'
a89e1e3 `remove': use sh(1)ell-style quoting
858374b Drop wordexp(3), instead unroll via fnmatch(3)..
0945726 MLE: change HT expansion..
0bbe981 nail.1: fix spelling errors as by igor(1) (Ingo Schwarze)
f1a775b Add -M and -m options (Viktor Szépe, Ralph Corderoy)..
42b42da `list': include argument-type etc. if *verbose*
79f2053 `if'+: support sh(1)-style comments on the line..
1bd8e48 Add *umask*, and set actively (Walter Alejandro Iglesias)..
6b1cd93 Now with *umask*, just drop fchmod(2)++ calls (Walter Alejandro
        Iglesias)
2b45cd0 Add *netrc-pipe*: allows e.g. encrypted .netrc files
af8261e Obsolete WANT_AGENT / *agent-shell-lookup* (Sorry!)
05f7743 Generate lowercase MIME charset=/RFC 2231 charset strings
ba22166 Change make targets; add $MAILJOBS; don't track $DESTDIR (Gaetan
        Bisson)..
cd244b1 Add WANT_CROSS_BUILD make.rc option (Juan RP)..
95141f6 Tweak VERBOSE handling (William Yodlowsky)..
73545ad Rename ADD(C|LD)LAGS to EXTRA_(C|LD)FLAGS..
ca81646 make.rc, mk-conf.sh: allow y/n booleans
d74a18a mk-conf.sh:path_check(): skip any "fakeroot" path (Hilko Bengen)
7ce6a17 (BWDIC!) nail.rc: nodot, emptystart, fullnames, m-c-e=0xE; pimp PDF
        handler
09912fa n_file_lock(): do not retry for EBADF / EINVAL
44a3be6 sendout.c:__savemail(): try to file_lock() *record*
5ef5261 cmd2.c:save1(): try to file_lock() target of `save'/`move'/etc.
10990e4 Add n_O_NOFOLLOW, disallow symlinks for writable files (Matthew
        Dillon)..
c83e153 (BWDIC!) Require explicit "from_" to `retain' etc. From_ lines!
d7a15e4 page_or_print(): query $PAGER environment, use it
481c687 Allow WANT_QUOTE_FOLD to be "require"d
1dc9bb6 (BWDIC!) Make `top' real-life capable!  Add `Top', *topsqueeze*..
df4954c Add $SOURCE_DATE_EPOCH (reproducible-builds.org; Colin Watson)
b412ea8 mime.types: add x-lzma, x-lz4 and x-lzip MIME type extensions
dc92f2c savedeadletter()->sendout.c; tweak POSIX compliance (Ralph Corderoy)
8a3638c MLE: add `bind' and `unbind' etc...
4c93f66 (BWDIC!) Obsolete *sendmail*++ in favour of *mta*++; obsolete *smtp*..
284db64 Obsolete *spam-interface*=spamd..
83a24a0 boolify(): allow y/n booleans
61aac0f All: OPT_ not WANT_, VAL_XY not XY..
45d488d README: add The Mail Archive -- Gmane.org reduced to NNTP
48eb7da SEND_TODISP(_ALL)?: append newline if message does have no final one
63bf464 (BWDIC!) Drop readline(3) support..
863f1e8 tty.c,MLE: gracefully honour *line-editor-disable*++..
ae4f2df nail.1: talk on `localopts' in macros which change `account's
844bedb Support LEXINPUT, thus `bind', contexts..
b9e4e61 Drop `features', change `version', adjust make system..
20f3cd2 nail.1: more explicit `set' references instead of saying 'Set' (Donald
        Mugnai)..

Appendix
^^^^^^^^

The complete changelog of commits in between two versions OLD and
NEW can be inspected by using the git(1) `log' command:

  $ git log --reverse --topo-order --abbrev-commit OLD..NEW
  # Only topic branch headers (--no-merges for content commits only):
  $ git log --oneline --reverse --topo-order --merges OLD..NEW
  # Same, but truly accessible:
  $ git log --oneline --reverse --topo-order --merges --parents OLD..NEW |
    while read c1 c2 c3 c4 c5 c6; do
      printf "%-24s: \$ git log --oneline --no-merges %s ^%s\n" \
        "${c6}" "${c1}" "${c2}";
    done

NEWS entries for the S-nail releases before v14.9.0 have been cut off
before release v14.9.0 and can be found in the git(1) repository:

  v14.8.0 - v14.8.10: $ git show v14.8.10:NEWS
  v13     -  v14.8.5: $ git show v14.8.5:NEWS
  9.0     - 12.5    : $ git show heirloom:ChangeLog

For even older releases you need to look into the [timeline] branch, but
no changelog has been administrated for them.

# s-ts-mode