at 3.0:
	at now has a lex/yacc grammer, which is an extension of POSIX.2 to
	something more sensible.  There's an atd, which can still simulate
	atrun with the -s option.

at 3.1:
	Tried to fix some races in the atd code by renaming
	running jobs to "=" (thanks to aj@arthur.pfalz.de for
	pointing out the bug).

at 3.1.1:
	The last fix didn't work.  New locking scheme: as soon as
	a job starts, the file a00beef is hardlinked to =00beef.
	a00beef is unlinked as soon as actual shell execution
	starts.  "=" - files are deleted as soon as their job
	ends, or an hour after they should have run.

at 3.1.2:
	cleanups:  indent the source with OTBS
	remove output file if it already exists, with a warning.
	log attempts to run job twice
	added -b option to atd
	removed -b option from at (now batch calls "at -qb now")
	revamp run_loop so -b works correctly

at 3.1.3:
	Fixed "at 07:30" functionality for implicit tomorrow
	Include yywrap if none can be found

at 3.1.4:
	Set default batch maximum to 0.8
	Changed install group to 'root'

at 3.1.5:
	Merged Bjorn Helgaas' (helgaas@tomahawk.rsn.hp.com) patches:
		* Use setresuid(2) if setreuid(2) is not available
		  (HP-UX 10)
		* Use "chown user:group" instead of "chown user.group" for
		  HP-UX compatibility
		* RELINQUISH_PRIVS slightly earlier in at.c,
		  since it doesn't depend on
		* Change "volatile static" to "static volatile"
		* Test for HAVE_ATTRIBUTE_NORETURN instead of __GNUC__
		  in daemon.h
	Don't export SHELLOPTS (read-only variable in bash)

at 3.1.6:
	Made 'noon', 'teatime' and 'midnight' work.
	Reran autoheader so HP-UX compilation works.

at 3.1.7:
	Made parser case-independent by specifying -i to flex

at 3.1.8:
	Fixed spelling mistake in manpage
	Created at_allow(5) and at_deny(5) manpages
	Fixed bug where 'next monday' could be a synonym for today
	Fixed spelling bug in parser (misspelled February)
	Removed obsolete '-v' flag from atq

at 3.1.11:

  Ansgar Burchardt (15):
      correct comment in atd.c
      rc: do not set -e
      panic.c: switch permissions before unlink
      update configure script
      update config.guess and config.sub
      Makefile.in: do not remove debian/tmp
      at.c: add -t option
      document new -t option
      remove unused function parsetimespec
      at.c: exit successfully when -V is given
      fix some typos
      update contact address
      update copyright information
      set version to 3.1.11
      remove $Id$ tags

  Cyril Brulebois (7):
      Make Copyright a regular file.
      Copy debian/rc to rc, it's not Debian-specific.
      Copy debian/pam to pam.conf, it's not Debian-specific.
      Remove the debian/ directory.
      Fix LFILE/ATJOB_DIR usage in nextjob().
      Fix missing panic.h include.
      Remove unused "static const char *svnid"

at 3.1.12:

  Ansgar Burchardt (18):
      do not increment year twice
      do not increment day of month twice
      update documentation on removed environment variables
      add -f option to stay in foreground
      error when day of month is 0
      make less assumptations on open file descriptors
      use common-session-noninteractive
      make parsetest buildable
      pass -i option to sendmail
      use pid file in init script
      add status action to init script
      make stdout, stderr available to sendmail process
      default queues are no longer configurable
      document -b option
      pass current time as a parameter to parsetime()
      document 4-digit years and ISO date format
      add test suite
      update copyright information

at 3.1.13:

  Ansgar Burchardt (18):
        parsetime.pl: add test case
        correct error message when initgroups fails
        change owner of output file
        do not open output file twice
        use strdup()
        at.1.in: Add references to at.allow(5), at.deny(5)
        Sort references in SEE ALSO section.
        man page for atrun is in section 8
        at.1.in: Document -M option.
        at.1.in: Remove a dot from mid-sentence.
        Rename at_allow.5.in to at.allow.5.in
        Remove useless chdir()
        Create hardlink as priviledged user
        Update my email address.
        atd.c: variable "rc" is always used
        No longer mention atrun in documentation.
        do not abort when job is removed just before we run it
        do not strip binaries on install

  Mike Miller (1):
        Add support for -r option required by POSIX.

  Reuben Thomas (2):
        De-duplicate and improve documentation of /etc/at.{deny,allow}.
        Clarify an error message.

at 3.1.14:

  Ansgar Burchardt (5):
        Add systemd service file.
        Initialize jobno before using it.
        No longer try to compile and run a trivial C program.
        Add -M option to usage message.
        Use LDFLAGS when linking programs.

at 3.1.15 (2014-08-10):

  Ansgar Burchardt (3):
        pam.conf: require pam_loginuid.so
        atd.service.in: Add Documentation field.
        atd.service.in: Set IgnoreSIGPIPE=false

at 3.1.16 (2014-09-30):

  Ansgar Burchardt (1):
        at: only retain variables whose name consists of alphanumerics and underscores
