# Policy checklist for upgrading your packages

## About the checklist

The checklist below has been created to simplify the upgrading process of old packages. Note that this list is not `official'; it simply gives an indication of what has changed and whether you are likely to need to make changes to your package in light of this. If you have doubts about a certain topic, if you need more details, or if you think some other package does not comply with policy, please refer to the Policy Manual itself. All of the changes from version 3.0.0 onwards indicate which section of the Policy Manual discusses the issue: [3.4] means section 3.4. The section numbering changed when the packaging manual was incorporated into policy; the section numbers used below refer to the current version.

Here is how the check list works: Check which policy version your package complies with currently (indicated in the "Standards-Version" field of the source package). Then move upwards until the top and check which of the items on the list might concern your package. Note which sections of policy discuss this, and then check out the Policy Manual for details. If you are upgrading from Policy version < 2.5.0, it may be easier to check through the whole of policy instead of picking your way through this list.

## The checklist

    3.8.2.0                        Jun 2009

         * The list of archive sections has been significantly expanded.  See
           http://lists.debian.org/debian-devel-announce/2009/03/msg00010.html
           for the list of new sections and rules for how to categorize
           packages.                                                 [2.4]
         * All packages must use debconf or equivalent for user prompting,
           though essential packages or their dependencies may also fall
           back on other methods.                                    [3.9.1]
         * Legacy XFree86 servers no longer get a special exception from the
           FHS permitting /etc/X11/XF86Config-4.                     [9.1]
         * Removed obsolete dependency requirements for packages that use
           /var/mail.                                                [9.1.3]
         * Speedo fonts are now deprecated.  The X backend was disabled
           starting in lenny.                                        [11.8.5]
         * The GNU Free Documentation License version 1.3 is included in
           common-licenses and should be referenced from there.      [12.5]
         * The requirements for source package names are now explicitly
           spelled out.                                              [5.6.1]

    3.8.1.0                        Mar 2009

         * Care should be taken when adding functionality to essential and
           such additions create an obligation to support that functionality
           in essential forever unless significant work is done.     [3.8]
         * Changelog files must be encoded in UTF-8.                 [4.4]
         * Tighten some format requirements for changelog files from a should
           to a must.                                                [4.4]
         * Remove alternative changelog formats.  Debian only supports one
           changelog format for the Debian Archive.                  [4.4.1]
         * New nocheck option for DEB_BUILD_OPTIONS indicating any build-time
           test suite provided by the package should not be run.     [4.9.1]
         * All control files must be encoded in UTF-8.               [5.1]
         * debian/control allows comment lines starting with # with no
           preceding whitespace.                                     [5.2]
         * Init scripts ending in .sh are not handled specially.  They are not
           sourced and are not guaranteed to be run by /bin/sh regardless of
           the #! line.  This brings Policy in line with the long-standing
           behavior of the init system in Debian.                    [9.3]
         * The start action of an init script must exit successfully and not
           start the daemon again if it's already running.           [9.3.2]
         * /var/run and /var/lock may be mounted as temporary filesystems, and
           init scripts must therefore create any necessary subdirectories
           dynamically.                                              [9.3.2]
         * /bin/sh scripts may assume that local can take multiple variable
           arguments and supports assignment.                        [10.4]
         * User mailboxes may be mode 600 and owned by the user rather than
           mode 660, owned by user, and group mail.                  [11.6]

    3.8.0.0                        Jun 2008

         * The base section has been removed.  contrib and non-free have been
           removed from the section list; they are only categories.  The base
           system is now defined by priority.                        [2.4, 3.7]
         * If dpkg-source -x doesn't provide the source that will be compiled,
           a debian/rules patch target is recommended and should do whatever
           else is necessary.                                        [4.9]
         * Standardized the format of DEB_BUILD_OPTIONS.  Specified permitted
           characters for tags, required that tags be whitespace-separated,
           allowed packages to assume non-conflicting tags, and required
           unknown flags be ignored.                                 [4.9.1, 10.1]
         * Added parallel=n to the standardized DEB_BUILD_OPTIONS tags,
           indicating that a package should be built using up to n parallel
           processes if the package supports it                      [4.9.1]
         * Debian packages should not use convenience copies of code from other
           packages unless the included package is explicitly intended to be
           used that way.                                            [4.13]
         * If dpkg-source -x doesn't produce source ready for editing and
           building with dpkg-buildpackage, packages should include a
           debian/README.source file explaining how to generate the patched
           source, add a new modification, and remove an existing
           modification.  This file may also be used to document packaging a
           new upstream release and any other complexity of the Debian build
           process.                                                  [4.14]
         * The Uploaders field in debian/control may be wrapped.     [5.6.3]
         * An empty Debian revision is equivalent to a Debian revision of 0 in
           a version number.                                         [5.6.12]
         * New Homepage field for upstream web sites.                [5.6.23]
         * The Breaks field declares that this package breaks another and
           prevents installation of the breaking package unless the package
           named in Breaks is deconfigured first.  This field should not be
           used until the dpkg in Debian stable supports it.         [6.5, 6.6, 7]
         * Clarify which files should go into a shared library package, into a
           separate package, or into the -dev package.  Suggest -tools instead
           of -runtime for runtime support programs, since that naming is more
           common in Debian.                                         [8.1, 8.2]
         * Files in /etc/cron.{hourly,daily,weekly,monthly} must be
           configuration files (upgraded from should).  Mention the hourly
           directory.                                                [9.5]
         * Packages providing /etc/X11/Xresources files need not conflict with
           xbase (<< 3.3.2.3a-2), which is long-obsolete.            [11.8.6]
         * Manual pages in locale-specific directories should use either the
           legacy encoding for that directory or UTF-8.  Country names should
           not be included in locale-specific manual page directories unless
           indicating a significant difference in the language.  All
           characters in the manual page source should be representable in the
           legacy encoding for a locale even if the man page is encoded in
           UTF-8.                                                    [12.1]
         * The Apache 2.0 license is now in common-licenses and should be
           referenced rather than quoted in debian/copyright.        [12.5]
         * Packages in contrib and non-free should state in the copyright file
           that the package is not part of Debian GNU/Linux and briefly
           explain why.                                              [12.5]
         * Underscore (_) is allowed in debconf template names.      [debconf]

    3.7.3.0                        Dec 2007

         * Package version numbers may contain tildes, which sort before
           anything, even the end of a part.                         [5.6.12]
         * Scripts may assume that /bin/sh supports local (at a basic level)
           and that its test builtin (if any) supports -a and -o binary
           logical operators.                                        [10.4]
         * The substitution variable ${binary:Version} should be used in place
           of ${Source-Version} for dependencies between packages of the same
           library.                                                  [8.5]
         * Substantial reorganization and renaming of sections in the Debian
           menu structure.  Packages with menu entries should be reviewed to
           see if the menu section has been renamed or if one of the new
           sections would be more appropriate.                       [menu policy]
         * The Source field in a .changes file may contain a version number
           in parentheses.                                           [5.6.1]
         * The acceptable values for the Urgency field are low, medium, high,
           critical, or emergency.                                   [5.6.17]
         * The shlibs file now allows an optional type field, indicating the
           type of package for which the line is valid.  The only currently
           supported type is udeb, used with packages for the Debian
           Installer.                                                [8.6]
         * Packages following the Debian Configuration management
           specification must allow for translation of their messages by using
           a gettext-based system such as po-debconf.                [3.9.1]
         * GFDL 1.2, GPL 3, and LGPL 3 are now in common-licenses and should
           be referenced rather than quoted in debian/copyright.     [12.5]

    3.7.2.2                        Oct 2006

         * Maintainer scripts must not be world writeable (up from a
           should to a must)                                         [6.1]

    3.7.2.0                        Apr 2006

         * Revert the cgi-lib change.                                [11.5]

    3.7.1.0                        Apr 2006

         * It is now possible to create shared libraries without
           relocatable code (using -fPIC) in certain exceptional cases,
           provided some procedures are followed, and for creating static
           libraries with relocatable code (again, using -fPIC).
           Discussion on debian-devel@lists.debian.org, getting a rough
           consensus, and documenting it in README.Debian constitute most
           of the process.                                           [10.2]
         * Packages should install any relevant files into the directories
           /usr/include/X11/and /usr/lib/X11/, but if they do so, they
           must  pre-depend on x11-common (>= 1:7.0.0)              [11.8.7]

    3.7.0.0                        Apr 2006

         * Packages shipping web server CGI files are expected to install
           them in /usr/lib/cgi-lib/ directories.  This location change
           perhaps should be documented in NEWS                      [11.5]
         * Web server packages should include a standard scriptAlias of
           cgi-lib to /usr/lib/cgi-lib.                              [11.5]
         * The version of FHS mandated by policy has been upped to
           2.3. There should be no changes required for most packages,
           though new top level directories /media, /srv, etc may be of
           interest.                                                 [9.1.1]
         * All fields, apart from the Uploaders field, in the control file
           are supposed to be a single logical line, which may be spread
           over multiple physical  lines (newline followed by space is
           elided).  However, any parser for the control file must allow
           the Uploaders field to be spread over multiple physical lines
           as well, to prepare for future changes.                 [ 5.1, 5.6.3 ]
         * When scripts are installed into a directory in the system
           PATH, the script name should not include an extension that
           denotes the scripting language currently used to implement it.
                                                                  [ 10.4 ]
         * packages that invoke initscripts now must use invoke-rc.d to do
           so since it also pays attention to run levels and other local
           constraints.                                                [ 9.3.3.2 ]
         * We no longer use /usr/X11R6, since we have migrated away to
           using Xorg paths. This means, for one thing, fonts live in
           /usr/share/fonts/X11/ now, and /usr/X11R6 is gone.
                                                          [ 11.8.5.2, 11.8.7, etc]

    3.6.2.0                        2005

         * Recommend doc-base, and not menu, for registering package documentation.
         * Run time support programs should live in subdirectories of
           /usr/lib/ or /usr/share, and preferably the shared lib is named
           the same as the package name (to avoid name collisions). [8.1]
         * It is recommended that HTTP servers provide an alias /images to
           allow packages to share image files with the web server [11.5]

    3.6.1.0                    Aug 2003

         + Prompting the user should be done using debconf. Non debconf
           user prompts are now deprecated. [3.10.1]

    3.6.0                      Jul 2003

         - Restructuring causing shifts in section numbers and bumping of
           the minor version number:
         + Many packaging manual appendices that were integrated into policy
           sections are now empty, and replaced with links to the Policy.
           In particular, the appendices that included the list of control
           fields were updated (new fields like Closes, Changed-By were added)
           and the list of fields for each of control, .changes and .dsc files
           is now in Policy, and they're marked mandatory, recommended or
           optional based on the current practice and the behavior of the
           deb-building tool-chain.
         + Elimination of needlessly deep section levels, primarily in the
           chapter Debian Archive, from which two new chapters were split out,
           Binary packages and Source packages. What remained was reordered
           properly, that is, some sect1s became sects etc.
         + Several sections that were redundant, crufty or simply not designed
           with any sort of vision, were rearranged according to the formula that
           everything should be either in the same place or properly interlinked.
           Some things remained split up between different chapters when they
           talked about different aspects of files: their content, their syntax,
           and their placement in the file system. In particular, see the new
           sections about changelog files.
         - Added Games/Simulation and Apps/Education to menu sub-policy
           [menu policy]
         - Debian changelogs should be UTF-8 encoded. [C.2.2]
         - shared libraries must be linked against all libraries that they
           use symbols from in the same way that binaries are. [10.2]
         - build-depends-indep need not be satisfied during clean
           target. [7.6]

    3.5.10                     May 2003

         - packages providing the x-terminal-emulator virtual package
           ought to ensure that they interpret the command line exactly
           like xterm does. [11.8.3]
         - Window managers compliant with the Window Manager Specification
           Project may add 40 points for ranking in the alternatives [11.8.4]

    3.5.9.0                    Mar 2003

         - The section describing the Description: package field once again has
           full details of the long description format. [3.4.2]
         - Clarified that if a package has non-build-essential
           build-dependencies, it should have them listed in the Build-Depends
           and related fields (i.e. it's not merely optional). [4.2]
         - When asked to restart a service that isn't already running,
           the init script should start the service. [9.3.2]
         - If the purpose of a package is to provide examples, then the
           example files can be installed into /usr/share/doc/package
           (rather than /usr/share/doc/package/examples). [12.6]

    3.5.8.0                    Nov 2002

         - It is no longer necessary to keep a log of changes to the upstream
           sources in the copyright file. Instead, all such changes should be
           documented in the changelog file. [12.7]
         - Build-Depends, 	Build-Conflicts,
           Build-Depends-Indep, and
           Build-Conflicts-Indep must also be satisfied when the
           clean target is called. [7.6]
         - A new Apps/Science menu section is available [menu policy]
         - debconf specification cleared up, various changes. [debconf
           policy]
         - It is no longer recommended to create symlinks from nonexistent
           manual pages to undocumented(7). Missing manual pages for programs
           are still a bug. [12.1]

    3.5.7.0                    Aug 2002

         - Packages no longer have to ask permission to call MAKEDEV in
           postinst, merely notifying the user ought to be enough. [10.6]
         - cryptographic software may now be included in the main
           archive. [2.2.4]
         - task packages are no longer permitted; tasks are now created by a
           special Tasks: field in the control file. [3.9]
         - window managers that support netwm can now add 20 points when
           they add themselves as an alternative for
           /usr/bin/x-window-manager [11.8.4]
         - The default compilation options have now changed, one should
           provide debugging symbols in all cases, and optionally step
           back optimization to -O0, depending on the DEB_BUILD_OPTIONS
           environment variable. [10.1]
         - Added mention of build-arch, build-indep, etc, in describing
           the relationships with `Build-Depends', `Build-Conflicts',
           `Build-Depends-Indep', and `Build-Conflicts-Indep'. May need to
           review the new rules.  [7.6, 4.8]
         - Changed rules on how, and when, to invoke ldconfig in maintainer
           scripts. Long rationale. [8]
         - [Added the last note in 3.5.6 upgrading checklist item regarding
           build rules, please see below]

    3.5.6.0                    Jul 2001

         - Emacs and TeX are no longer mandated by policy to be priority
           standard packages [2.5]
         - Programs that access docs need to do so via /usr/share/doc, and
           not via /usr/doc/ as was the policy previously [11.5]
         - Putting documentation in /usr/doc versus /usr/share/doc is now
           a ``serious'' policy violation. [12.3]
         - For web servers, one should not provide non-local access to the
           /usr/share/doc hierarchy. If one can't provide access controls for
           the http://localhost/doc/ directory, then it is preferred that one
           ask permission to expose that information during the install. [11.5]
         - There are new rules for build-indep/build-arch targets and
           there is a new Build-Depend-Indep semantic. [7]

    3.5.5.0                    May 2001

         - Manpages should not rely on header information to have
           alternative manpage names available; it should only use
           symlinks or .so pages to do this [12.1]
         - [Clarified note in 3.5.3.0 upgrading checklist regarding
            examples and templates: this refers only to those examples used
            by scripts; see section 10.7.3 for the whole story]
         - Included a new section 10.9.1 describing the use of
           dpkg-statoverride; this does not have the weight of policy
         - Clarify Standards-Version: you don't need to rebuild your
           packages just to change the Standards-Version!
         - Plugins are no longer bound by all the rules of shared
           libraries [10.2]
         - X Windows related things:
           * Clarification of priority levels of X Window System related
             packages [11.8.1]
           * Rules for defining x-terminal-emulator improved [11.8.3]
           * X Font policy rewritten: you must read this if you provide
             fonts for the X Window System [11.8.5]
           * Packages must not ship /usr/X11R6/lib/X11/app-defaults/ [11.8.6]
           * X-related packages should usually use the regular FHS
             locations; imake-using packages are exempted from this [11.8.7]
           * OpenMotif linked binaries have the same rules as
             OSF/Motif-linked ones [11.8.8]

    3.5.4.0                    Apr 2001

         - The system-wide mail directory is now /var/mail, no longer
           /var/spool/mail.  Any packages accessing the mail spool should
           access it via /var/mail and include a suitable Depends field;
           details in [11.6]
         - The perl policy is now part of Debian policy proper. Perl
           programs and modules should follow the current Perl policy
           [11.9; perl-policy]

    3.5.3.0                    Apr 2001

         - Build-Depends arch syntax has been changed to be less
           ambiguous. This should not affect any current packages [7.1]
         - Examples and templates files for use by scripts should now live
           in /usr/share/<package> or /usr/lib/<package>, with
           symbolic links from /usr/share/doc/<package>/examples as
           needed [10.7.3]

    3.5.2.0                    Feb 2001

         - X app-defaults directory has moved from
           /usr/X11R6/lib/X11/app-defaults to /etc/X11/app-defaults [11.8.6]

    3.5.1.0                    Feb 2001

         - dpkg-shlibdeps now uses objdump, so shared libraries have to be
           run through dpkg-shlibdeps as well as executables [8.1]

    3.5.0.0                    Jan 2001

         - Font packages for the X Window System must now declare a
           dependency on xutils (>= 4.0.2) [11.8.5]

    3.2.1.1                    Jan 2001

         - Daemon startup scripts in /etc/init.d/ should not contain
           modifiable parameters; these should be moved to a file in
           /etc/default/; see [9.3.2] for details
         - Files in /usr/share/doc must not be referenced by any
           program.  If such files are needed, they must be placed in
           /usr/share/<package>/, and symbolic links created as required
           in /usr/share/doc/<package>/ [12.3]
         - Much of the packaging manual has now been imported into the
           policy document

    3.2.1.0                    Aug 00

         - A package of priority standard or higher may provide two
           binaries, one compiled with support for the X Window System,
           and the other without [11.8.1]

    3.2.0.0                    Aug 00

         - By default executables should not be built with the debugging
           option -g. Instead, it is recommended to support building the
           package with debugging information optionally.  Details in [10.1]
         - Policy for packages where the upstream uses HTML changelog
           files has been expanded.  In short, a plain text changelog file
           should always be generated for the upstream changes [12.8]
         - Please note that the new release of the X window system (3.2)
           shall probably need sweeping changes in policy
         - Policy for packages providing the following X-based features
           has been codified:
           - X server (virtual package xserver) [11.8.2]
           - X terminal emulator (virtual package x-terminal-emulator) [11.8.3]
           - X window manager (virtual package x-window-manager, and
             /usr/bin/x-window-manager alternative, with priority
             calculation guidelines) [11.8.4]
           - X fonts (this section has been written from scratch) [12.8.5]
           - X application defaults [11.8.6]
         - Policy for packages using the X Window System and FHS issues
           has been clarified; see [11.8.7]
         - No package may contain or make hard links to conffiles [11.7.3]
         - Noted that newer dpkg versions do not require extreme care in
           always creating the shared lib before the symlink, so the unpack
           order be correct [8]

    3.1.1.0                    Nov 1999

         - Correction to semantics of architecture lists in Build-Depends
           etc.  Should not affect many packages [7.1]

    3.1.0.0                    Oct 1999

         - /usr/doc/<package> has to be a symlink pointing to
           /usr/share/doc/<package>, to be maintained by postinst
           and prerm scripts.  Details are in [defunct]
         - Introduced source dependencies (Build-Depends, etc.) [7.1, 7.6]
         - /etc/rc.boot has been deprecated in favour of /etc/rcS.d.
           (Packages should not be touching this directory, but should use
           update-rc.d instead) [9.3.4]
         - update-rc.d is now the *only* allowable way of accessing the
           /etc/rc?.d/[SK]??* links.  Any scripts which manipulate them
           directly must be changed to use update-rc.d instead.  (This is
           because the file-rc package handles this information in an
           incompatible way.) [9.3.3]
         - Architecture-specific examples go in /usr/lib/<package>/examples
           with symlinks from /usr/share/doc/<package>/examples/* or from
           /usr/share/doc/<package>/examples itself [12.7]
         - Updated FHS to a 2.1 draft; this reverts /var/state to
           /var/lib [9.1.1]
         - Added MIME sub-policy document [9.7; mime-policy]
         - VISUAL is allowed as a (higher priority) alternative to EDITOR [12.4]
         - Modified liblockfile description, which affects
           mailbox-accessing programs.  Please see the policy document for
           details [11.6]
         - If a package provides a changelog in HTML format, a text-only
           version should also be included.  (Such a version may be prepared
           using lynx -dump -nolist.) [12.7]
         - Description of how to handle version numbers based on dates
           added [3.2.1]

    3.0.1.0                    Jul 1999

        -  Added the clarification that the .la files are essential for the
           packages using libtool's libltdl library, in which case the
           .la files must go in the run-time library package [10.2]

    3.0.0.0                    Jun 1999

        - Debian formally moves from the FSSTND to the FHS. This is a
          major change, and the implications of this move are probably
          not all known. [9.1]
        - Only 3 digits of the Standards version need be included in
          control files, though all four digits are still permitted. [4.1]
        - The location of the GPL has changed to
          /usr/share/common-licenses. This may require changing the
          copyright files to point to the correct location of the GPL and
          other major licenses [12.6]
        - Packages that use libtool to create shared libraries must
          include the .la files in the -dev packages [10.2]
        - Use logrotate to rotate log files [10.8]
        - section 5.8 has been rewritten (Programs for the X Window
          System) [now 11.8]
        - There is now an associated menu policy, in a separate document,
          that carries the full weight of Debian policy [9.6; menu-policy]
        - Programs which need to modify the files /var/run/utmp,
          /var/log/wtmp and /var/log/lastlog must be installed setgid utmp [11.3]

    ** Please note that section numbers below this point may not be up to date **

    2.5.0.0                         Oct 1998

      Policy Manual:
        - Rearranged the manual to create a new Section 4, Files
          + Section 3.3 ("Files") was moved to Section 4. The Sections
            that  were Section 4 and Section 5 were  moved down to become
            Section 5 and Section 6.
          + What was Section 5.5 ("Log files") is now a subsection of the
            new Section 4 ("Files"), becoming section 4.8, placed after
            "Configuration files", moving the Section 4.8 ("Permissions
            and owners") to Section 4.9.  All subsections of the old
            Section 5 after 5.5  were moved down to fill in the number
            gap.
        - Modified the section about changelog files to accommodate
          upstream changelogs which were formatted as HTML/ These
          upstream changelog files should now be accessible as
          /usr/doc/package/changelog.html.gz
          + Symlinks are permissible to link the real, or upstream,
            changelog name to the Debian mandated name.
        - Clarified that HTML documentation should be present in some
          package, though not necessarily the main binary package.
        - Corrected all references to the location of the copyright
          files. The correct location is /usr/doc/package/copyright
        - Ratified the architecture specification strings to cater to the
          HURD.

    2.4.1.0                         Apr 1998

      Policy Manual:
        - Updated section 3.3.5 Symbolic links:
          + symbolic links within a toplevel directory should be relative,
            symbolic links between toplevel directories should be absolute
            (cf., Policy Weekly Issue#6, topic 2)

        - Updated section 4.9 Games:
          + manpages for games should be installed in /usr/man/man6
            (cf., Policy Weekly Issue#6, topic 3)

      Packaging Manual:
        - Updated prefix of chapter 12, Shared Libraries:
          ldconfig must be called in the postinst script if the package
          installs shared libraries
          (cf., Policy Weekly Issue #6, fixes:bug#20515)

    2.4.0.0                         Jan 1998

        - Updated section 3.3.4 Scripts:
          + /bin/sh may be any POSIX compatible shell
          + scripts including bashisms have to specify /bin/bash as
            interpreter
          + scripts which create files in world-writable directories
            (e.g., in /tmp) should use tempfile or mktemp for creating
            the directory

        - Updated section 3.3.5 Symbolic Links:
          + symbolic links referencing compressed files must have the same
            file extension as the referenced file

        - Updated section 3.3.6 Device files:
          + /dev/tty* serial devices should be used instead of /dev/cu*

        - Updated section 3.4.2 Writing the scripts [in /etc/init.d]:
          + all /etc/init.d scripts have to provide the following options:
            start, stop, restart, force-reload
          + the reload option is optional and must never stop and restart
            the service

        - Updated section 3.5 Cron jobs:
          + cron jobs that need to be executed more often than daily should
            be installed into /etc/cron.d

        - Updated section 3.7 Menus:
          + removed section about how to register HTML docs to `menu'
            (the corresponding section in 4.4, Web servers and applications,
            has been removed in policy 2.2.0.0 already, so this one was
            obsolete)

        - New section 3.8 Keyboard configuration:
          + details about how the backspace and delete keys should be
            handled

        - New section 3.9 Environment variables:
          + no program must depend on environment variables to get a
            reasonable default configuration

        - New section 4.6 News system configuration:
          + /etc/news/organization and /etc/news/server should be supported
            by all news servers and clients

        - Updated section 4.7 Programs for the X Window System:
          + programs requiring a non-free Motif library should be provided
            as foo-smotif and foo-dmotif package
          + if lesstif works reliably for such program, it should be linked
            against lesstif and not against a non-free Motif library

        - Updated section 4.9 Games:
          + games for X Windows have to be installed in /usr/games, just as
            non-X games

    2.3.0.1, 2.3.0.0		Sep 1997

    	* new section `4.2 Daemons' including rules for
    	  /etc/services, /etc/protocols, /etc/rpc, and /etc/inetd.conf

    	* updated section about `Configuration files':
    	  packages may not touch other packages' configuration files

    	* MUAs and MTAs have to use liblockfile

    2.2.0.0				Jul 1997

    	* added section 4.1 `Architecture specification strings':
              use
    	       <arch>-linux
              where <arch> is one of the following:
                   i386, alpha, arm, m68k, powerpc, sparc.

    	* detailed rules for /usr/local

    	* user ID's

    	* editor/pager policy

    	* cron jobs

    	* device files

    	* don't install shared libraries as executable

    	* app-defaults files may not be conffiles

    2.1.3.2, 2.1.3.1, 2.1.3.0	Mar 1997

    	* two programs with different functionality must not have the
    	  same name

    	* "Webstandard 3.0"

    	* "Standard for Console Messages"

    	* Libraries should be compiled with `-D_REENTRANT'

    	* Libraries should be stripped with "strip --strip-unneeded"

    2.1.2.2, 2.1.2.1, 2.1.2.0	Nov 1996

    	* Some changes WRT shared libraries

    2.1.1.0				Sep 1996

    	* No hard links in source packages

    	* Do not use dpkg-divert or update-alternatives without consultation

    	* Shared libraries must be installed stripped

    2.1.0.0				Aug 1996

    	* Upstream changelog must be installed too