	Only the last entry is complete, the others might have been condensed.

1990/12/07: v1.00
1990/12/12: v1.01
1991/02/04: v1.02
1991/02/13: v1.10
1991/02/21: v1.20
1991/02/22: v1.21
1991/03/01: v1.30
1991/03/15: v1.35
	    Started using RCS to manage the source
1991/06/04: v1.99
1991/06/10: v2.00
1991/06/11: v2.01
1991/06/12: v2.02
1991/06/20: v2.03
1991/07/04: v2.10
1991/07/12: v2.11
1991/10/02: v2.20 (never released)
1991/10/18: v2.30
	    Reached the doubtful milestone of having a source file (regexp.c)
	       which provokes a compiler error on an old compiler
	       (if using the optimiser)
1991/10/22: v2.31
1991/12/05: v2.40
1991/12/13: v2.50
1992/01/22: v2.60
1992/01/31: v2.61
1992/04/30: v2.70
1992/07/01: v2.71
	    Gave procmail, formail, lockfile and mailstat a more verbose
	       command line help (called up by -h or -?)
1993/02/04: v2.80
	    Started using CVS to manage the source (god's gift to programmers)
	    Changes to the installation scripts:
	       - the autoconf script now performs a reliability test on kernel
		 locking support
	       - reached the doubtful milestone of consistently crashing the
		 kernel on a Convex by running the locktst program
1993/02/19: v2.81
1993/06/02: v2.82 (never really released, was only available as prerelease 4)
	    Worked my way around the !@#$%^&*() POSIX setgid() semantics (if
	       your OS supports setrgid() or setregid())
1993/07/01: v2.90
	    Condition lines in recipes can now be started with a leading `*',
	       there is no longer a need to count condition lines, simply
	       set the number to zero, and let procmail find out by itself
1993/07/02: v2.91
	    Reached the doubtful milestone to sometimes crash an Ultrix
	       machine (due to the lockingtests, not procmail itself)
1994/06/14: v3.00
	    Changes to procmail:
	       - Changed the semantics of the TRAP keyword.  In order to
		 make procmail accept the exitcode it returns, you now have
		 to set EXITCODE=""
	       - It was still occasionally trying to lock /dev/null, which
		 is of course silly, fixed that
	       - Taught it about `nesting recipes'; they allow parts of
		 an rcfile to be grouped hierarchically
	       - Fixed a discrepancy with /bin/sh backquote expansion in
		 environment assignments (preserving all spaces)
	       - Logs its pid and a timestamp when VERBOSE=on
	       - Caused the regular TIMEOUT to break a `hanging' kernel lock
	       - SIGUSR1 and SIGUSR2 can be used to turn on and off verbose
		 logging
	       - Worked around a bug in the `ANSI'-compiler of Domain/OS
	       - Procmail and lockfile now inherit any ignore status of most
		 regular signals (fixes a problem with some buggy shells)
	       - Optionally reads in a global rcfile (/etc/procmailrc)
		 before doing regular delivery (which includes the new
		 keyword: DROPPRIVS)
	       - Can pipe the mail to stdout on request
	       - Moved the "Reiterating kernel lock" diagnostic into the
		 "extended" (i.e. VERBOSE=on) section
	       - Tightened the loop when skipping comments in rcfiles (for
		 a slight speedup)
	       - Added support for filesystems not capable of creating
		 hardlinks
	       - Tightened the security check on initial absolute rcfiles
		 (they sometimes can't be world writable)
	       - Weighted scoring on conditions
	       - Ability to inline parse ${var-text} and ${var:-text}
	       - Ability to inline parse ${var+text} and ${var:+text}
	       - Skipping spaces after "!" and "$" on condition lines
	       - Implicit delivery somehow got broken: fixed
	       - Default umask is always 077 now for deliverymode
	       - Extended ^FROM_DAEMON and ^FROM_MAILER macro regexps again
	       - The -f option became less strict, everyone can use it now,
		 except that unpriviliged users will get an additional >From_
		 they didn't bargain for (in order to make fakes identifiable)
	       - The date on the From_ line can now be refreshed with -f-
	       - Introduced new recipe flags: E and e (else and error)
	       - Nested blocks clone procmail on a 'c' flag
	       - Introduced the EXITCODE special variable
	       - Implicit delivery mode is now entered if argv[0] doesn't start
		 with the word `procmail'
	       - Fixed the BSD support for kernel-locking only operation
	       - Taught the regexp engine about \< and \>
	       - Fixed bug present on some systems; caused the body to be
		 munged when filtering headers only
	       - Added -o option (makes procmail override the From_ lines, like
		 it used to)
	       - -p and -m together shrink the set of preset variables to the
		 bare minimum
	       - -p is not supported alongside -d anymore
	       - /etc/procmailrcs/ is the place for optional privileged
		 rcfiles in -m mailfilter mode
	       - Switched the meanings of SIGUSR1 and SIGUSR2
	       - The 'a' flag didn't work correctly after filter recipes
	       - Changed the permissions on the lockfile, writing zero in it
	       - Check the permissions on the existing system mailbox, correct
		 them if necessary
	       - Clean up zombies more often
	    Changes to formail:
	       - Fixed a sender-determination-weight problem, it mixed up
		 the weights when autoreplying and when regenerating the From_
		 line (and thus didn't always pick the optimal field)
	       - Pays attention to the exitcode of the programs it started
	       - Accepts simultaneous -X and -k options
	       - Fixed a bug introduced in v2.82 in formail when using
		 the -x and the -k options simultaneously
	       - Rearranged the weights for "-rt" (made From: more important)
	       - Parsed return-addresses starting with a \ incorrectly
		 (causing it to coredump on occasion)
	       - Supports the -s option withouth a program argument
	       - Recognise extra UUCP >From_ lines
	       - Introduced the -B option to split up BABYL rmail files
	       - It regards and generates a FILENO variable (for easy
		 numbering)
	       - Moved the idcheck functionality into formail -D (due to
		 popular demand), for eliminating duplicate mails
	       - It terminates early now if it only needs the header
	       - The -n option can now sustain itself by reaping children
		 if it can't fork() immediately
	       - It supports incomplete field specifications which match
		 any field starting similarly
	       - Introduced the -u and -U options
	       - -a Message-ID: and -a Resent-Message-ID: to make it generate
		 new ones
	       - Keep the X-Loop: field when generating autoreplies
	       - Lowered the negative weight for .UUCP reply addresses
	       - Honour Content-Length: fields, also speeds up processing of
		 lengthy messages
	       - Clean up zombies more often
	       - Handle bangpath reconstruction
	       - Made -q the default, use -q- to disable
	    Miscellaneous changes:
	       - Detecting and dodging buggy zshs everywhere
	       - Slightly adjusted autoconf for the new non-standard 386BSD
		 and NeXTStep 3.1 environments
	       - Extended the FAQ
	       - Extended and fixed the procmailex man page
	       - Updated the crontab script recommendation in the procmail
		 man page
	       - Fixed the "procmail"-mailer definition in the procmail man
		 page
	       - Created a new procmailsc man page
	       - Fixed a bug in lockfile, the exitcode was not correct if
		 you used -! with more than one file
	       - Including <limits.h> now, some (old) architectures seem to
		 insist on this
	       - Revamped the library search code
	       - Provided a faster (than most libraries) strstr() routine
	       - Created the setid program (to be used by the SmartList
		 installation)
	       - Checking for fstat() in autoconf
	       - Avoiding i/o-redirection on subshells
	       - Provided for the ability to hotwire the lockingtests
	       - Autoconf asks if you'd like to use the existing autoconf.h
	       - Autoconf determines MAX_argc (for choplist)
1994/06/14: v3.01
	    No changes, version number bump to keep in sync with SmartList
1994/06/16: v3.02
	    Made formail quiet (by default) about Content-Length mismatches
	    The version number in patchlevel.h for this version was incorrect
	       and still displayed v3.01 (yes, silly, I know)
1994/06/30: v3.03
	    Limit the no. of retries on lockfiles if the recipient is over
	       quota (procmail & lockfile)
	    Removed some superfluous "procmail:" prefixes in the middle of
	       an error message
	    Utilise a syslog daemon (if present) to log some critical errors
	       (mostly attempted security violations and errors which are
	       fatal but can't occur (like an unwritable /dev/null))
	    Reconstruct and respect Content-Length: in procmail
	       (if you need the >From lines, you'll have to take any existing
	       Content-Lenght: field out of the header)
	    Reformatted the source code to match the changed conventions
	    Procmail always defaulting the umask to 077 for deliverymode broke
	       some systems, reverting back to the old method of allowing group
	       access on the system mailbox if necessary
1994/08/02: v3.04
	    Changes to procmail:
	       - Support some non-BSD compatible syslog() implementations
	       - Even if the Content-Length is zero, write it out (some
		 programs can't deal with the empty field)
	       - Drop the safety margin on Content-Length calculations, some
		 programs can't deal with those
	       - Truncate folders to their former length if delivery was not
		 successful
	       - Fine-tuned the ^FROM_MAILER and ^FROM_DAEMON macros again
	       - The -v option lists the locking strategies employed
	       - Will create the last member of the mail spool directory if
		 found missing
	    Forgot to define closelog() away if syslog support is missing
	    Worked around the old syslog() interface
	    Worked around a compiler bug old HP compilers (pointer-unsigned),
	       caused the Content-Length: field to be mangled on some older
	       HP/UX systems (not on every mail)
	    Worked around compilation problems on SCO and old versions of IRIX
	    Some fixes to the man pages
	    Changes to formail:
	       - Mistakenly turned X-Loop: fields into Old-X-Loop: when
		 autoreplying
	       - Allow wildcard -i when autoreplying
	       - Renaming short fields to longer fields didn't always work
	       - Renaming with a wildcard source/destination is possible now
	       - -rk didn't behave correctly if a Content-Length: field was
		 present
	    Extended the sendmail directions in examples/advanced, it includes
	       a direct example on how to make use of the -a feature
	    Using EXIT_SUCCESS instead of EX_OK
	    Both procmail and formail take the -Y option, for traditional
	       Berkeley format mailboxes (ignoring Content-Length:)
	    Some NCR machines didn't have WNOHANG defined
1994/08/04: v3.05
	    Formail v3.04 didn't remove the From_ line if given the -I 'From '
	       option, changed that back, allowing for -a 'From '
	    Procmail sometimes didn't reliably count the number of matches on
	       a weighted recipe, fixed
	    Some minor manpage adaptations
1994/08/30: v3.06
	    Groff -mandoc macros managed to display the man pages incorrectly,
	       hacked my way around the .TH dependency to fix it
	    Split up string constant FM_HELP, it exceeded some compiler limits
	    Changes to procmail:
	       - Fixed a bug which was present since v2.30: 'z' was always
		 handled case sensitive (seems like not many people use
		 that letter :-) in regular expression conditions
	       - The ^^ anchor can now also be used to anchor the end of
		 a regular expression
	       - The -m flag will now unset ORGMAIL and will make
		 procmail omit the check for a system mailbox
	       - Allow easy reconfiguration of the default rcfile location
	       - Extend the list of internals displayed with -v
	       - The mail fed to the TRAP command contained some spurious
		 nul characters, fixed
	    Optionally allow the automatic installation of compressed man pages
	    Formail v3.00 and later occasionally seemed to hang if used in
	       a chain of pipes and fed with more text than it needed, fixed
	    Updated the FAQ
	    Updated the man pages (among others: vacation example changed)
	    Sharpened the autoconf const check, AIX 3.2.3 managed to slip past
	       it again
	    Made sure that "make -n" with any make works as expected
1994/10/31: v3.10
	    Changes to procmail:
	       - Minor corrections to the semantics of the 'a' and 'e' flags
	       - Minor correction to the semantics of the -o option
	       - Slight regular expression engine speedup
	       - Regexp matching of environment variables is possible now
	       - Due to popular demand: LOGABSTRACT=all logs *all* successful
		 delivering-recipes executed
	       - Enforce secure permissions on /etc/procmailrcs if used
	       - Take sgid bit in the system mail spool dir into account
		 even if it is world writable
	       - The regexp engine can return matches now (new token "\/",
		 new variable "MATCH")
	       - New recipe flag 'r', raw mode, so procmail doesn't try
		 to ensure the mail ends in an empty line
	       - Success and failure of a filter recipe is well defined now
	       - Procmail v3.06 prepended a bogus "." to explicit rcfile names
		 searched relative to the home directory, fixed
	       - Carved out two subroutines from main() to get it below the
		 optimisation threshold
	       - Eliminated duplicate error messages when procmailrcless
		 delivery fails
	       - Logging "Quota exceeded" messages when appropriate
	       - Truncate notification suppressed when logfile not opened
	       - Truncating didn't always work when delivering across NFS
	       - The $_ special variable was wrong when wasn't set
	    Changes to formail:
	       - New option: -z (zap whitespace and empty fields)
	       - Reading from stdin doesn't require the silly three EOFs
		 anymore
	       - -D with -r cache reply addresses now
	       - Carved out one subroutine from main() to get it below the
		 optimisation threshold
	       - -R with -x didn't work reliably
	       - -r with -i or -I sometimes had unexpected effects (in v3.06)
	       - The nil-Return-Path-override was broken, fixed
	    Updated the man pages, new subsection to procmailrc(5) summarising
	       procmail regexp syntax
	    Expanded on the sendmail.cf $#local example in the
	       examples/advanced file again
	    Revised detection of hard-link incapable filesystems during the
	       installation
	    Fixed bug in lockfile, the exitcode was not correct if
	       you used -! (I hope this finally fixes this -! problem)
	    Using execv() instead of execve()
