0.7.2 - 2010-06-22
  - new API call aug_setm to set/create multiple nodes simultaneously
  - record expression used in a defvar underneath /augeas/variables
  - Lens changes/additions
    * Group: add test for disabled account (Raphael Pinson)
    * Grub: handle comments within a boot stanza
    * Iptables: also look for /etc/iptables-save (Nicolas Valcarcel)
    * Modules_conf: new lens for /etc/modules.conf (Matt Booth)
    * Securetty: added handling of emtpy lines/comments (Frederik Wagner)
    * Shellvars: added SuSE sysconfig puppet files (Frederik Wagner),
      process /etc/environment (seph)
    * Shellvars_list: Shellvars-like lens that treats strings of
      space-separated words as lists (Frederik Wagner)

0.7.1 - 2010-04-21
  - new primitive lens 'value' to set value of a node to a constant,
    similar to 'label' for the key (see http://augeas.net/docs/lenses.html)
  - new builtins for printing and getting the types of a lens (see
    http://augeas.net/docs/builtins.html)
  - add unit type to lens language; allow '_' as an identifier in let's to
    force evaluation for side effect only
  - Various fixes for Solaris. Augeas now builds cleanly on Solaris 5.10,
    and most of the tests pass. The three tests that fail all fail because
    the test scripts have Linux idiosyncrasies. This needs to be addressed
    in a future release. Much thanks to Dagobert Michelsen and the OpenCSW
    project (http://www.opencsw.org/) for providing me with access to their
    build farm.
  - fix crash when recursive lens was used in a nonrecursive lens (bug #100)
  - context free parser/recursive lenses: handle 'l?' properly (bug #119);
    distinguish between successful parse and parse with an error at end of
    input; do caller filtering to avoid spurious ambiguous parses with
    grammars containing epsilon productions
  - aug_get: return -1 when multiple nodes match (bug #121)
  - much better error message when iteration stops prematurely during
    put/create than the dreaded 'Short iteration'
  - augtool: ignore empty lines from stdin; report error when get fails
  - fix memory leak in file_info (transform.c); this was leaking a file
    name every time we loaded a file (Laine Stump)
  - nicer error message when typechecker spots ambiguity in atype
  - libfa: handle '(a|)' and 'r{min,}' properly
  - locale independence: handle a literal '|' properly on systems that lack
    use_locale
  - bootstrap: pull in isblank explicitly (needed on Solaris)
  - src/lens.c (lns_check_rec): fix refcounting mistake on error path (bug #120)
  - fix SEGV when loading empty files
  - improvements in handling some OOM's
  - Lens changes/additions
    * Approx: lens and test for the approx proxy server (Tim Stoop)
    * Cgconfig: lens and tests for libcgroup config (Ivana Hutarova Varekova)
    * Cgrules: new lens and test (Ivana Hutarova Varekova)
    * Cobblermodules: lens + tests for cobbler's modules.conf (Shannon Hughes)
    * Debctrl: new lens and test (Dominique Dumont)
    * Dput: add 'allow_dcut' parameter (bug #105) (Raphael Pinson)
    * Dhclient: add rfc code parsing (bug #107) (Raphael Pinson)
    * Group: handle disabled passwords
    * Grub: support empty kernel parameters, Suse incl.s (Frederik Wagner)
    * Inittab: allow ':' in the process field (bug #109)
    * Logrotate: tolerate whitespace at the end of a line (bug #101); files
      can be separated by newlines (bug #104) (Raphael Pinson)
    * Modprobe: Suse includes (Frederik Wagner)
    * Nagisocfg: lens and test for /etc/nagios3/nagios.cfg (Tim Stoop)
    * Ntp: add 'tinker' directive (bug #103)
    * Passwd: parse NIS entries on Solaris
    * Securetty: new lens and test for /etc/securetty (Simon Josi)
    * Shellvars: handle a bare 'export VAR'; Suse includes (Frederik
      Wagner); allow spaces after/before opening/closing parens for array
    * Sshd: allow optional arguments in subsystem commands (Matt Palmer)
    * Sudoers: allow del_negate even if no negate_node is found (bug #106)
               (Raphael Pinson); accept 'secure_path' (BZ 566134) (Stuart
               Sears)

0.7.0 - 2010-01-14
  - Support for context-free lenses via the 'let rec' keyword. The syntax
    is experimental, though the feature is here to stay. See
    lenses/json.aug for an example of what's possible with that.
  - Support for case-insensitive regular expressions. Simply append 'i' to
    a regexp literal to make it case-insensitive, e.g. /hello/i will match
    all variations of hello, regardless of case.
  - Major revamp of augtool. In particular, path expressions don't need to
    be quoted anymore. The online help has been greatly improved.
  - Check during load/save that each file is only matched by one transform
    under /augeas/load. If there are multiple transforms for a file, the
    file is skipped.
  - New error codes AUG_ENOLENS and AUG_EMXFM
  - Do not choke on non-existing lens during save
  - Change the metadata for files under /augeas/files slightly: the node
    /augeas/files/$PATH/lens now has the name of the lens used to load the
    file; the source location of that lens has moved to
    /augeas/files/$PATH/lens/info
  - New public functions fa_nocase, fa_is_nocase, and fa_expand_nocase in
    libfa
  - Various smaller bug fixes, performance improvements and improved error
    messages
  - Lens changes/additions
    * Cobblersettings: new lens and test (Bryan Kearney)
    * Iptables: allow quoted strings as arguments; handle both negation
      syntaxes
    * Json: lens and tests for generic Json files
    * Lokkit: allow '-' in arguments
    * Samba: accept entry keys with ':' (Partha Aji)
    * Shellvars: allow arrays that span multiple lines
    * Xinetd (name): fix bad '-' in character class

0.6.0 - 2009-11-30
  - Add error reporting API (aug_error and related calls); use to report
    error details in a variety of places
  - Path expressions: add regexp matching; add operator '|' to form union
    of nodesets (ticket #89)
  - Tolerate non-C locales from the environment (ticket #35); it is no
    longer necessary to set the locale to C from the outside
  - use stpcpy/stpncpy from gnulib (needed for building on Solaris)
  - Properly check regexp literals for syntax errors (ticket #93)
  - Distribute and install vim syntax files (ticket #97)
  - many more bugfixes
  - Lens changes/additions
    * Apt_preferences: support version pin; filter out empty lines (Matt
      Palmer)
    * Cron: variables can contain '_' etc. (ticket #94)
    * Ethers: new lens for /etc/ethers (Satoru SATOH)
    * Fstab: allow '#' in spec (ticket #95)
    * Group: allow empty password field (ticket #95)
    * Inittab: parse end-of-line comments into a #comment
    * Krb5: support kdc section; add v4_name_convert subsection to
      libdefaults (ticket #95)
    * Lokkit: add mising eol to forward_port; make argument for --trust
      more permissive
    * Pam: allow '-' before type
    * Postfix_access: new lens for /etc/postfix/access (Partha Aji)
    * Rx: allow '!' in device_name
    * Sudoers: allow certain backslash-quoted characters in a command (Matt
      Palmer)
    * Wine: new lens to read Windows registry files

0.5.3 - 2009-09-14
  - Match trees on label + value, not just label; see
    tests/modules/pass_strip_quotes.aug for how that enables stripping
    quotes
  - Do not trip over symlinks to files on a different device during save;
    fixes problems with writing to /etc/grub.conf on Fedora/RHEL
  - API (defnode): always add the newly created node into the resulting
    nodeset
  - Add preceding-sibling and following-sibling axes to path expressions
  - augtool, augparse: add --version option (bug #88)
  - Change file info recorded under /augeas/files/FILE/*: remove lens/id
    and move lens/info to lens
  - Properly record new files under /augeas/files (bug #78)
  - aug_load: clean up variables to avoid dangling references (bug #79)
  - Make Augeas work on AIX
  - Ignore anything but regular files when globbing
  - Add 'clear' function to language for use in unit tests
  - typechecker: print example trees in tree format
  - libfa: properly support regexps with embedded NUL's
  - Lens changes/additions
    * Xorg: revamped, fixes various parse failures (Matt Booth)
    * Inetd: new lens and test (Matt Palmer)
    * Multipath: new lens and test
    * Slapd: also read /etc/openldap.slapd.conf (bug #85)

0.5.2 - 2009-07-13
  - Make Augeas work on Mac OS/X (bug #66) (Anders Bjoerklund)
  - reduce symbols exported from libfa with linker script
  - add --echo option to augtool
  - require Automake 1.11 (Jim Meyering)
  - avoid spurious save attempts for freshly read files
  - Lens changes/additions
    * Inittab: schema change: use 'id' field as name of subtree for a line,
      instead of a generated number. Map comments as '#comment' (Matt Palmer)
    * Logrotate: make owner/group in create statement optional, allow
      filenames to be indented
    * Ntp: allow additional options for server etc. (bug #72)
    * Shellvars: allow backticks as quote characters (bug #74)
    * Yum: also read files in /etc/yum/pluginconf.d (Marc Fournier)

0.5.1 - 2009-06-09
  - augeas.h: flag AUG_NO_MODL_AUTOLOAD suppresses initial loading
              of modules; exposed as --noautoload in augtool
  - augtool: don't prompt when input is not from tty (Raphael Pinson)
  - augparse: add --notypecheck option
  - path expressions: allow things like '/foo and /bar[3]' in predicates
  - Lens changes/additions
    * Aliases: map comments as #comment (Raphael Pinson)
    * Build, Rx, Sep: new utility modules (Raphael Pinson)
    * Cron: new lens (Raphael Pinson)
    * Dnsmasq: process files in /etc/dnsmasq.d/* (ticket #65)
    * Grub: parse kernel and module args into separate nodes; parse
            arguments for 'serial', 'terminal', and 'chainloader'; allow
            optional argument for 'savedefault'
    * Interfaces: make compliant with actual Debian spec (Matt Palmer)
    * Iptables: relax regexp for chain names; allow comment lines mixed
                in with chains and rules (ticket #51)
    * Logrotate: allow '=' as separator (ticket #61); make newline at end
                 of scriptlet optional
    * Modprobe: handle comments at end of line
    * Ntp: parse fudge record (Raphael Pinson); parse all directives in
           default Fedora ntp.conf; process 'broadcastdelay', 'leapfile',
           and enable/disable flags (ticket #62)
    * Pbuilder: new lens for Debian's personal builder (Raphael Pinson)
    * Php: add default path on Fedora/RHEL (Marc Fournier)
    * Squid: handle indented entries (Raphael Pinson)
    * Shellvars: map 'export' and 'unset'; map comments as #comment
                 (Raphael Pinson)
    * Sudoers: allow backslashes inside values (ticket #60) (Raphael Pinson)
    * Vsftpd: map comments as #comment; handle empty lines; find
              vsftpd.conf on Fedora/RHEL
    * Xinetd: map comments as #comment (Raphael Pinson)

0.5.0 - 2009-03-27
  - Clean up interface for libfa; the interface is now considered stable
  - New aug_load API call; allows controlling which files to load by
    modifying /augeas/load and then calling aug_load; on startup, the
    transforms marked with autoload are reported under /augeas/load
  - New flag AUG_NO_LOAD for aug_init to keep it from loading files on
    startup; add --noload option to augtool
  - New API calls aug_defvar and aug_defnode to define variables for
    path expressions; exposed as 'defvar' and 'defnode' in augtool
  - Lenses distributed with Augeas are now installed in
    /usr/share/augeas/lenses/dist, which is searched after
    /usr/share/augeas/lenses, so that lenses installed by other packages
    take precedence
  - New program examples/fadot to draw various finite automata (Francis
    Giraldeau)
  - Report line number and character offset in the tree when parsing a
    file with a lens fails
  - Fix error in propagation of dirty flag, which could lead to only
    parts of a tree being saved when multiple files were modified
  - Flush files to disk before moving them
  - Fix a number of memory corruptions in the XPath evaluator
  - Several performance improvements in libfa
  - Lens changes/additions
    * Grub: process embedded comments for update-grub (Raphael Pinson)
    * Iptables: new lens for /etc/sysconfig/iptables
    * Krb5: new lens for /etc/krb5.conf
    * Limits: map dpmain as value of 'domain' node, not as label
              (Raphael Pinson)
    * Lokkit: new lens for /etc/sysconfig/system-config-firewall
    * Modprobe: new lens for /etc/modprobe.d/*
    * Sudoers: more finegrained parsing (ticket #48) (Raphael Pinson)

0.4.2 - 2009-03-09
  - Do not delete files that had an error upon parsing
  - For Fedora/EPEL RPM's, BuildRequire libselinux-devel (bug #26)
  - Bug fixes in path expressions
    * for numbers, the meaning of '<' and '<=' was reversed
  - Always create an entry /files in aug_init
  - New builtin 'Sys' module with functions 'getenv' and 'read_file',
    the latter reads a the contents of a file into a string
  - Lens changes/additions
    * Postfix_main: handle continuation lines
    * Bbhosts, Hosts, Logrotate, Sudoers: label comment nodes as '#comment'
    * Sshd: map comments as '#comment' nodes
    * Squid: add all keywords from squid 2.7 and 3 (Francois Deppierraz)
    * Logrotate: process unit suffixes for 'size' and 'minsize'

0.4.1 - 2009-03-02
  - Remove files when their entire subtree under /files is deleted
  - Various bug fixes and syntax enhancements for path expressions
    (see tests/xpath.tests for details)
  - Evaluate path expressions with multiple predicates correctly
  - Fix incorrect setting of /augeas/events/saved
  - Major cleanup of matching during get; drastically improves
    performance for very large (on the order of 10k lines) config files
  - Small performance improvement in the typechecker
  - Reject invalid character sets like [x-u] during typecheck
  - Build with compile warnings set to 'maximum' instead of 'error', so
    that builds on platforms with broken headers will work out of the box
  - Lens changes/additions
    * Util.stdexcl now excludes .augsave and .augnew files
    * Logrotate: allow 'yearly' schedule, spaces around braces
    * Ntp: fix so that it processes ntp.conf on Fedora 10
    * Services: lens for /etc/services (Raphael Pinson)
    * Xorg: new lens and tests (Raphael Pinson)

0.4.0 - 2009-02-06
  - Much improved and expanded support for path expressions in the public
    API. See doc/xpath.txt and tests/xpath.tests for details.
  - Solaris support: builds at least on OpenSolaris 2008.11
  - Lens changes/additions
    * Grub: support color and savedefault
    * DarkIce: new lens for http://darkice.tyrell.hu/ (Free Ekanayaka)

0.3.6 - 2009-01-26
  - report version in /augeas/version, report legal save modes in
    /augeas/version/save/mode for feature tests/version checking
  - dynamically change behavior of aug_save; add noop save mode
    (Bryan Kearney)
  - plug memory leak, more portable SELinux test (Jim Meyering)
  - fix bz #478619 - do not use abspath (Arnaud Gomes-do-Vale)
  - fix segfault when branch in a union does not have a ktype
  - Lens changes/additions
    * Dpkg: new lens for Debian's dpkg.cfg (Robin Lee Powell)
    * Limits: new lens for /etc/security/limits.conf (Free Ekanayaka)
    * Soma: new lens for http://www.somasuite.org/ config
      (Free Ekanayaka)
    * Php, Gdm: fix minor regexp error (Marc Fournier)
      expand filter for Php config files (Robin Lee Powell)
    * Phpvars: whitspace fixes (Free Ekanayaka)
    * Puppet: accept indented puppet.conf (ticket #25)

0.3.5 - 2008-12-23
  - add an option to rewrite files by overwriting their contents instead of
    putting the new file in place atomically with rename(2); file contents
    are only copied after rename fails with EXDEV or EBUSY, and only if the
    node /augeas/save/copy_if_rename_fails (fix #32)
  - saving of backup (.augsave) files now works even if the original and
    backup files are on different devices
  - major refactoring of how path expressions are handled internally. Fixes
    a number of bugs and oddities (e.g. tickets #7 and #23)
  - fix a bug in fa_as_regexp: a '.' wasn't escaped, ultimately leading to
    spurious errors from the typechecker
  - Lens changes/additions
    * Group: process /etc/group (Free Ekanayaka)
    * Passwd: process /etc/passwd (Free Ekanayaka)
    * Phpvars: process files that set PHP variables, in particular
      /etc/squirrelmail/config.php (Free Ekanayaka)
    * Rsyncd: process /etc/rsyncd.conf (Marc Fournier)
    * Shellvars: process /etc/arno-iptables-firewall/debconf.cfg and
      /etc/cron-apt/config (Free Ekanayaka), load /etc/sysconfig/sendmail
    * Postfix: process postfix's main.cf and master.cf (Free Ekanayaka)
    * Squid: new lens for squid.conf (Free Ekanayaka)
    * Webmin: new lens (Free Ekanayaka)
    * Xinetd: make sure equal sign is surrounded by spaces (#30)
    * Sshd: change the structure of Condition subtrees (Dominique Dumont)

0.3.4 - 2008-11-05
  - fix saving of backup files; in 0.3.3, when AUG_SAVE_BACKUP was passed
    to aug_init, aug_save would always fail

0.3.3 - 2008-10-24
  - restore the behavior of aug_save; in 0.3.2, aug_save broke API by
    returning the number of files changed on success instead of 0

0.3.2 - 2008-10-21
  - saving now reports which files were actually changed in
    /augeas/events/saved; aug_save also returns the number of files
    that were changed
  - preserve file owner, permissions and SELinux context when changing a file.
  - make saving idempotent, i.e. when a change to the tree does not result
    in changes to the actual file's content, do not touch the original file
  - report an error if there are nodes in the tree with a label that
    is not allowed by the lens
  - quietly append a newline to files that do not have one
  - generate lens documentation using NaturalDocs and publish those
    on the Auegas website (Raphael Pinson)
  - Lens changes/additions
    * Grub: support the 'password' directive (Joel Nimety)
    * Grub: support 'serial' and 'terminal' directives (Sean E. Millichamp)
    * Samba: change default indentation and separators (Free Ekanayaka)
    * Logrotate: process tabooext, add dateext flag (Sean E. Millichamp)
    * Sshd: Cleaner handling of 'Match' blocks (Dominique Dumont)
    * Monit: new lens (Free Ekanayaka)
    * Ldap: merge with Spacevars (Free Ekanayaka)
    * Shellvars: support /etc/default (Free Ekanayaka)
    * Shellvars: handle space at the end of a line

0.3.1 - 2008-09-04
  - Major performance improvement when processing huge files, reducing some
    O(n^2) behavior to O(n) behavior. It's now entirely feasible to
    manipulate for example /etc/hosts files with 65k lines
  - Handle character escapes '\x' in regular expressions in compliance with
    Posix ERE
  - aug_mv: fix bug when moving at the root level
  - Fix endless loop when using a mixed-case module name like MyMod.lns
  - Typecheck del lens: for 'del RE STR', STR must match RE
  - Properly typecheck the '?' operator, especially the atype; also allow
    '?' to be applied to lenses that contain only 'store', and do not
    produce tree nodes.
  - Many new/improved lenses
    * many lenses now map comments as '#comment' nodes instead of just
      deleting them
    * Sudoers: added (Raphael Pinson)
    * Hosts: map comments into tree, handle whitespace and comments
             at the end of a line (Kjetil Homme)
    * Xinetd: allow indented comments and spaces around "}" (Raphael Pinson)
    * Pam: allow comments at the end of lines and leading spaces
           (Raphael Pinson)
    * Fstab: map comments and support empty lines (Raphael Pinson)
    * Inifile: major revamp (Raphael Pinson)
    * Puppet: new lens for /etc/puppet.conf (Raphael Pinson)
    * Shellvars: handle quoted strings and arrays (Nahum Shalman)
    * Php: map entries outside of sections to a '.anon' section
           (Raphael Pinson)
    * Ldap: new lens for /etc/ldap.conf (Free Ekanayaka)
    * Dput: add allowed_distributions entry (Free Ekanayaka)
    * OpenVPN: new lens for /etc/openvpn/{client,server}.conf (Raphael Pinson)
    * Dhclient: new lens for /etc/dhcp3/dhclient.conf (Free Ekanayaka)
    * Samba: new lens for /etc/samba/smb.conf (Free Ekanayaka)
    * Slapd: new lens for /etc/ldap/slapd.conf (Free Ekanayaka)
    * Dnsmasq: new lens for /etc/dnsmasq.conf (Free Ekanayaka)
    * Sysctl: new lens for /etc/sysctl.conf (Sean Millichamp)

0.3.0 - 2008-08-07
  - Add aug_mv call to public API
  - Do not clobber symlinks, instead write new files to target of symlink
  - Fail 'put' when tree has invalid entries
  - Set exit status of augtool
  - Avoid picking special characters, in particular '\0', in examples (libfa)
  - Store system errors, using strerror, in the tree during writing of files
  - New lenses
    * Generic inifile module (Raphael Pinson)
    * logrotate (Raphael Pinson)
    * /etc/ntp.conf (Raphael Pinson)
    * /etc/apt/preferences (Raphael Pinson)
    * bbhosts for Big Brother [http://www.bb4.org/] (Raphael Pinson)
    * php.ini (Raphael Pinson)

0.2.2 - 2008-07-18
  - Fix segfault in store.put on NULL values
  - Properly move default lens dir with DATADIR (Jim Meyering)
  - Fix 'short iteration' error on get/parse of empty string; this bug
    made it impossible to save into a new file
  - Add 'insa' and 'insb' primitives to allow insertion from
    put unit tests
  - aug_insert: handle insertion before first child properly
  - New lenses
    * /etc/exports: NFS exports
    * /etc/dput.cf: Debian's dput (Raphael Pinson)
    * /etc/aliases: don't require whitespace after comma (Greg Swift)

0.2.1 - 2008-07-01
  - Address some compilation issues found on Ubuntu/Debian unstable
  - Fix segfault when aug_init/close are called multiple times
  - Man page for augparse
  - New lenses
    * /etc/sysconfig/selinux
    * Bugfixes for grub.conf

0.2.0 - 2008-06-05
  - Augeas is now much more portable
    * Pull in gnulib on non-glibc systems
    * Augeas now builds and runs on FreeBSD (possibly others, too)
  - Various fixes for memory corruption and the like
    (Jim Meyering, James Antill)
  - New lenses
    * vsftpd.conf
    * various bugfixes in existing lenses

0.1.1 - 2008-05-16
  - Add subtraction of regexps to the language, for example
      let re = /[a-z]+/ - /(Allow|Deny)Users/
  - Report errors during get/put in the tree; added subnodes to
    /augeas/files/PATH/error for that purpose
  - Many many bugfixes:
    * plugged all known memory leaks
    * fixed typecheck for lens union (l1 | l2) which was plain wrong
    * reduce overall memory usage by releasing unused compiled regexps
    * further performance improvements in libfa
    * check that values match the regexps in STORE when saving
  - libfa can now convert an automaton back to a regular expression
    (FA_AS_REGEXP)
  - New lenses
    * /etc/fstab
    * /etc/xinetd.conf and /etc/xinetd.d/*

0.1.0 - 2008-05-01
  - Various changes to public API:
    * Remove aug_exists from public API, and merge functionality into aug_get
    * Do not hide pointer behind typedef; instead Augeas 'handle' type is now
      struct augeas, typedef'd to augeas (Jim Meyering)
    * Const-correctness of public API, return error indication
      from aug_print (Jim Meyering)
    * Make buildable on Debian Etch (remove -fstack-protector from compiler
      switches)
  - Public API is now stable, and existing calls will be supported without
    further changes
  - New schema:
    * /etc/sysconfig/network-scripts/ifcfg-* (Alan Pevec)
    * Assorted other files from /etc/sysconfig (the ones that just set
      shell variables)
    * /etc/apt/sources.list and /etc/apt/sources.list.d/* (Dean Wilson)
  - Man page for augtool (Dean Wilson)

0.0.8 - 2008-04-16
  - Complete rewrite of the language for schema descriptions

0.0.7 - 2008-03-14
  - Typecheck lenses; in particular, discover and complain about ambiguous
    concatenation and iteration
  - Enable typechecking for augparse by default, and for augtool via the
    '-c' flag
  - Fixed lens definitions in spec/ to pass typechecking. They contained
    quite a few stupid and subtle problems
  - Greatly improved libfa performance to make typechecking reasonably
    fast. Typechecking cmfm.aug went from more than two hours to under two
    seconds

0.0.6 - 2008-03-05
  - Make it possible to overwrite files when saving with and without
    backups
  - Take the filesystem root as an optional argument to aug_init
  - Expose these two things as command line options in augtool

0.0.5 - 2008-03-05
  - Changed public API to contain explicit reference to augeas_t
    structure. This makes it easier to write threadsafe code using Augeas
  - Added libfa, finite automata library, though it's not yet used by
    Augeas

0.0.4 - 2008-02-25
  - package as RPM and make sure Augeas can be build on Fedora/RHEL

0.0.3 - 2008-02-25
  - further rework; file processing now resembles Boomerang lenses much
    more closely
  - major revamp of the internal tree representation (ordered tree where
    multiple children can have the same label, including NULL labels)
  - move away from LL(1) parsing in favor of regular languages, since they
    enable much better ahead-of-time checks (which are not implemented yet)

0.0.2 - 2008-01-29:
  - completely reworked
  - processing of files is now based on a textual description of the
    structure of the files (basically a LL(1) grammar)

0.0.1 - 2007-12-01:
  - First release.
  - Public API and basic tree data structure.
  - Record scanning works.
  - Providers for pam.d, inittab and /etc/hosts
  - Simple tests and test driver