$Id: RELEASE,v 0.7 2007/12/09 14:52:00 lehman beta $

RELEASE NOTES FOR VERSION 0.7

The changelog of this release is the longest list of changes in any
biblatex release so far. Skimming the full list in biblatex.pdf is
highly recommended. In the following, I will focus on changes 'under
the hood' which are not mentioned in the changelog, point out things
which may break backwards compatibility, and comment on some
improvements which may not be immediately obvious from looking at
the changelog because they pertain to a set of changes rather than a
single one.

*  Roadmap

   I will take a break from biblatex development until summer 2008.
   That's in part because my time budget for LaTeX hacking is
   severely restricted. And in part it's because the user and author
   interface of the package is considered stable now, so the current
   phase of development is a good opportunity for style authors to
   test the current feature set with some real-world applications
   before the final 1.0 release. If all goes according to plan,
   version 0.8 will mainly be a consolidation release with bug fixes
   and minor improvements. If any serious bugs come up in the
   meantime, I'll try to fix them right away.

*  User and author interface stable

   Starting with this release, the user and author interface of this
   package may be considered as stable. This means that I will try
   to refrain from making syntactically or functionally incompatible
   changes to the core package, unless I'm forced to do so because
   of a bug or because one of the most recently added features turns
   out to be really awkward. Essentially, citation and bibliography
   styles written for this version should work with biblatex 1.0
   with no or at most minor modifications.
   
   Please note that this is a development aim, but there is no
   guarantee. Also note that the definitions in biblatex.def (mainly
   the formatting directives) are not guaranteed to be stable at
   this point. In other words: if you use the default definitions,
   your style will inherit possible improvements in future versions.
   If you use modified formatting directives, you may need to update
   them to integrate new functions. That should be fairly easy,
   though.

*  CTAN staging area for biblatex styles

   There's a new location for contributed biblatex styles, it's:

   macros/latex/exptl/biblatex-contrib/
   
   Contributed styles should go into a subdirectory of the above
   location. E.g., a style called 'MLA' would go into:
   
   macros/latex/exptl/biblatex-contrib/mla/
   
   Note that the exptl/ subtree is intended for experimental or beta
   code. As soon as biblatex hits 1.0 and moves out of exptl/ to

   macros/latex/biblatex/
   
   there's be a corresponding biblatex-contrib. At this point, all
   contributed styles should be considered experimental because the
   core package is still in beta.

*  Removed biblatex.cbx and biblatex.bbx

   I've removed the files biblatex.cbx and biblatex.bbx from the
   distribution. The code formerly found in biblatex.cbx has been
   moved to biblatex.def. The code formerly found in biblatex.bbx
   has been split up. The most generic parts have been moved to
   biblatex.def. The less generic parts, which are closely tied to
   biblatex's standard bibliography style, are now part of
   standard.bbx.

   I've also rearranged some of the bibmacros formerly found in the
   above files and renamed some of them. If you have been using some
   of that code in a custom bibliography style, don't worry, all the
   code is still there, but parts of it may be arranged differently
   (e.g., a bibmacro may have been split up into two macros or two
   macro may have been merged into one) and the names of some
   bibmacros may have changed.

   Note that biblatex.def is always loaded, but standard.bbx is not.
   If you have been using code which is now part of standard.bbx in
   a custom bibliography style, you need to copy the relevant parts
   to your style.

*  New dependency on etoolbox.sty

   Some of the most generic parts of biblatex.sty have been moved to
   an independent package called 'etoolbox', which is now required.
   The package is available from CTAN and may also be useful for
   style authors.

*  Type-specific formatting directives

   All formatting directives may now be defined on a per-type basis;
   e.g.:
   
   \DeclareFieldFormat[article]{title}{\mkbibquote{#1}}
   
   would define the format of the 'title' field of @article entries
   only. The fallback mechanism for formats now works as follows.
   The command \printfield{title}, when used in an @article driver,
   would check for the following formats (in this order):
   
   title [article]
   title
   default
   
   This also applies to cases where a specific formatting directive
   is requested explicitly, i.e. \printfield[myformat]{title}, would
   check for these formats:

   myformat [article]
   myformat
   default

   The point is that you can override formats on a per-type basis
   without having to hack any drivers.

*  Truncation with 'and others' now supported by literal lists

   Truncating a list with 'and others' in the .bib file is now
   supported by both name lists and literal lists. This used to be
   specific to name lists. See \ifandothers and \ifmoreitems as well
   as \finallistdelim and \andmoredelim for details.

*  Introducing entry options and style-specific options

   This release introduces the concept of an entry option and a new
   'options' field. The 'useprefix' field has been replaced by an
   entry option. Instead of:
   
   useprefix = {true}
   
   you now use

   options = {useprefix=true}

   There are two more predefined entry options called 'useauthor' and
   'useeditor'. These options may still be used globally to set the
   default behavior.
   
   In addition to that, Bibliography and citation styles may define
   additional package and entry options. See \DeclareEntryOption and
   \DeclareBibliographyOption for details.

*  Introducing multicite commands

   This release introduces an entirely new class of citation
   commands called 'multicite' commands. The point of a multicite
   command is that its argument may be a fully qualified list of
   citations where each key has its own pre- and postnote. The syntax
   is straightforward. Instead of:
   
   \cite[See][55]{key1}; \cite[12]{key2}; \cite[93]{key3}
   
   you can now say:
   
   \cites[See][55]{key1}[12]{key2}[93]{key3}
   
   This is particularly useful with parenthetical citations and
   citations given in footnotes. It's also possible to assign a pre-
   and/or postnote to the entire list. These global notes are given
   in parentheses:

   \footcites(See)(and chapter 3)[55]{key1}[12]{key2}[93]{key3}
   
   See \cites, \parencites, \footcites, etc. in the manual. There is
   also an \autocites command (a multicite version of \autocite).

   Defining new multicite commands is very easy because they are
   based on the regular citation commands. See the documentation of
   \DeclareMultiCiteCommand for details.

*  Improved trackers and tracking control

   The 'trackers' provided by biblatex have been greatly improved
   and extended. This release also adds new trackers which
   correspond to the requirements of some common citation styles.
   See the package options 'pagetracker', 'citetracker',
   'ibidtracker', 'opcittracker', and 'loccittracker' for all the
   gory details.  Also see \ifciteibid, \ifopcit, and \ifloccit.
   It's possible to control tracking in the document, see
   \pagetrackertrue/false and \citetrackertrue/false for details.
   Note that text commands like \citetitle are now exluded from
   tracking by default. See also the point below.

*  Tracker reset support

   It's possible to reset trackers and citation styles and several
   different levels. For the built-in trackers, see the package
   option 'citereset' as well as the user-level command \citereset.
   For style-specific reset support, see \InitializeCitationStyle,
   \InitializeBibliographyStyle, \OnManualCitation, and the
   user-level command \mancite.

*  New entry types, more custom entry types

   This release adds the entry types 'periodical' and 'patent',
   which are fully supported by the standard styles. Several new
   custom types have also been added. The custom types are not
   supported by default, but they may be useful in custom styles.

*  New field/list subtype: key field/list

   I've introduced a new field/list data subtype called key
   field/key list. They may hold printable data or localization keys
   and work as follows: A test is performed to determine whether the
   value of the field is a known localization key. If so, the
   localized string is printed. If not, the value is printed as is.

*  Improved postnote handling, alternative pagination schemes

   The handling of page numbers in the 'pages' field and in the
   postnote argument to citation commands has been improved
   significantly. Biblatex does range detection now and recognizes
   Roman numerals as numbers. It also supports alternative
   'pagination' schemes (columns, line or verse numbers, etc.).

   See the fields 'pagination' and 'bookpagination' and related
   pointers in the changelog. See also \mkpageprefix, \ppspace,
   \pno, \ppno, \nopp, \psq, \psqq.

*  Support for unique names in citations

   This release introduces support for unique names in citations.
   Some author-year and author-title citation styles require
   unambiguous names in citations. For example, with entries such as

   John Smith 1995
   Edward Smith 1995
   
   citations would be rendered as
   
   J. Smith 1995
   E. Smith 1995
   
   rather than
   
   Smith 1995a
   Smith 1995b
   
   See the package option 'uniquename' and the special counter
   'uniquename' for details. Note that this feature is now enabled
   by default in the following styles: authoryear, authoryear-comp,
   authortitle-terse, authortitle-tcomp.

*  Improved support for numeric labels

   The 'defernums' package option addresses the problem of
   discontinuous numbering when using a numeric style in combination
   with bibliography filters. If this option is enabled, the numeric
   labels are assigned the first time an entry is printed in any
   bibliography. This is similar to the traditional algorithm used
   by LaTeX to assign numeric labels.

*  Alternative, non-inheriting cross-referencing mechanism

   This release introduces an alternative cross-referencing
   mechanism which does not inherit any data. It's useful in styles
   which format cross-referenced entries differently. See the
   description of the field 'xref' and related pointers in the
   manual.

*  Support for different encodings

   Biblatex is now capable of handling .bib files with an encoding
   which is different from the encoding of the .tex file. See the
   'bibencoding' package option for details.

*  More robust handling of citation keys

   This release adds some normalization code which deals with
   special characters in citation keys. A typical example are keys
   which contain an underscore. This should be much more robust now.

*  Renamed fields

   The 'journal' field has been renamed to 'journaltitle' but the
   old name is still supported as an alias. There's also a
   'journalsubtitle' field and fields for the title and the subtitle
   of a single issue. In other words, article entries now support a
   complete set of titles similar to inbook-like entry types:
   journaltitle/issuetitle/title essentially correspond to
   maintitle/booktitle/title.

   The field name 'id' turned out to be incompatible with JabRef.
   Apart from that, the name is a bit too generic for what this
   field holds anyway. It's called 'eid' now (electronic ID) and
   holds an article ID used by online journals or journals which are
   also available online.

*  'labelctitle' replaced by 'singletitle'

   The 'labelctitle' field has removed in favor of a different
   mechanism using a test called \ifsingletitle. The package option
   'labelctitle' has also been renamed to 'singletitle'.

*  Alphabetic label now configurable

   The alphabetic label provided in the 'labelalpha' field is now
   configurable to a certain extend. It is responsive to the global
   package options 'maxnames' and 'minnames'. It's also possible to
   influence the handling of truncated labels by redefining
   \labelalphaothers.

*  Name types

   This release introduces the concept of a name type. This is best
   explained by example. Suppose a book has a compiler rather than
   an editor. In previous versions of this package, there was no way
   to override the string 'editor' and 'edited by'. Starting with
   this release, you may specify 'compiler' as an editor type:

   @book{...,
     editor     = {...},
     editortype = {compiler},
   
   Supported editor types are 'editor' (the default) and 'compiler'.
   Note that this mechanism is hooked up to bibliography strings
   hence it may be extended. See the fields 'authortype',
   'editortype', and 'name[a-c]type' in the manual.

*  Consistent set of wrappers

   I've completed the generic wrapper commands provided by biblatex
   so that they form a complete set. Instead of using the solution
   in the left column of the following list, use the wrapper in the
   right column:

   (...)                   ->   \mkbibparens{...}
   [...]                   ->   \mkbibbrackets{...}
   \footnote{...}          ->   \mkbibfootnote{...}
   \textsuperscript{...}   ->   \mkbibsuperscript{...}
   \emph{...}              ->   \mkbibemph{...}
   \enquote{...}           ->   \mkbibquote{...}
   ``...''                 ->   \mkbibquote{...}

   The wrappers integrate much better with biblatex and they also
   provide additional features.

*  New citation styles, some styles renamed

   I've renamed all verbose citation styles from 'authortitle-*' to
   'verbose-*' and added some new styles. See the changelog for
   details.

*  natbib compatibility style

   To facilitate the move from natbib to biblatex, this release adds
   a special natbib compatibility style which maps natbib's core
   citation commands to equivalent biblatex commands. See the 
   package option 'natbib' for details.

*  All citation commands scan ahead for punctuation

   Starting with this release, all citation commands scan ahead for
   punctuation to avoid double punctuation at the end of a citation.
   This used to be a feature exclusive to \autocite. The 'autopunct'
   package option and the \DeclareAutoPunctuation command will now
   affect all citation commands, not only \autocite.

*  Support for font style adaptation of punctuation

   This release implements an alternative way of dealing with
   punctuation after a field printed in a different font (for
   example, a title printed in italics). The standard (La)TeX way of
   dealing with this problem is to add a small amount of space (the
   so-called italic correction) to avoid clashes between the final
   letter of a word in italics and the following (upright)
   punctuation mark.

   Biblatex is now capable of adapting the punctuation to the font
   of the preceeding field. See '\mkbibemph' and '\setpunctfont' for
   details. Note that this feature is experimental. It may very well
   have a few quirks. Also note that it is disabled by default. Use
   the 'punctfont' package option to enable it.

*  Extended language support: Norwegian, Danish

   This release comes with a norsk.lbx and a danish.lbx file. The
   translations were contributed by Johannes Wilm.

RELEASE NOTES FOR VERSION 0.6

*  Style-independent citations

   This release introduces a special command for style-independent
   citations. The idea behind the \autocite command is to provide
   higher-level citation markup which makes global switching from
   inline citations to citations given in footnotes (or as
   superscripts) possible.

   The \autocite command is built on top of lower-level commands
   like \parencite and \footcite. The citation style provides an
   \autocite definition by way of \DeclareAutoCiteCommand. This
   definition may be activated by way of the 'autocite' package
   option. See the documentation of \autocite in the manual for
   further details.

*  Forcing capitalized name prefixes

   One thing that's been on my personal wishlist for some time is an
   equivalent to natbib's \Citet command. This release finally
   introduces additional citation commands which force capitalized
   name prefixes (provided that there is a prefix and that it is to
   be printed as part of the citation, i.e. the 'useprefix' option
   is enabled). The new citation commands are defined as follows in
   biblatex.cbx:

      \newcommand*{\Cite}{\bibsentence\cite}
      \newcommand*{\Textcite}{\bibsentence\textcite}
      \newcommand*{\Parencite}{\bibsentence\parencite}
      \newcommand*{\Footcite}{\bibsentence\footcite}
      \newcommand*{\Citeauthor}{\bibsentence\citeauthor}

   Here's how it works. Biblatex's punctuation tracker is based on
   TeX's space factor. All the \bibsentence command does is setting
   the space factor to a special sentinel value which is detected by
   \bibstring. The name formatting directive used by all citation
   commands now incorporates the new \ifcapital test. This test is
   true if the punctuation tracker would capitalize a bibliography
   string at this point. If the formatting directive detects the
   sentinel value, it will capitalize the name prefix (if
   applicable). A handy side-effect of this approach is that a
   possible 'prenote' argument is taken into account automatically.
   For example:

      '\cite{vandoren}'      prints 'van Doren 1995'
   
   and

      '\Cite{vandoren}'      prints 'Van Doren 1995'
   
   but

      '\Cite[See]{vandoren}' prints 'See van Doren 1995'.
   
   This also works in conjunction with bibliography strings. For
   example, if the citation style replaces the standard citation by
   something like '\bibstring{ibid}', then

      '\cite{vandoren}'      prints 'ibid.'
   
   but

      '\Cite{vandoren}'      prints 'Ibid.'.
   
   In other words, unless the citation style is doing something very
   unusual, there is no need to define \Cite et al. explicitly with
   \DeclareCiteCommand. The default definitions should work fine in
   all normal cases. If the style doesn't print any names but rather
   numerical or alphabetic citations then nothing is capitalized, so
   that's no problem either.

*  Custom filters for \printbibliography

   See \defbibfilter and the 'filter' option of \printbibliography
   in the manual.

*  Support for unsorted bibliographies

   See the package option 'sorting=none'.

*  Automatic truncation of literal lists

   This release introduces the package options 'maxitems' and
   'minitems' which are similar to 'maxnames' and 'minnames' but
   affect literal lists. There are also corresponding (local)
   options for \printbibliography, \printshorthands, and so on.

*  Improved support for corporate authors and editors
   
   There are two new name lists ('shortauthor' and 'shorteditor')
   which may be helpful when dealing with corporate authors and
   editors. Basically, 'author' and 'editor' are used in the
   bibliography whereas 'shortauthor' and 'shorteditor' are used in
   citations. The point is that you can give a short form of the name
   for use in citations. For example:
   
   @Type{key,
    author = {{National Aeronautics and Space Administration (NASA)}},
    shortauthor = {NASA},
    ...
   }
   
   This will print "NASA" in citations but "National Aeronautics and
   Space Administration (NASA)" in the bibliography. Note that
   'shortauthor' and 'shorteditor' are name lists, not literal
   fields. This means that corporate names must be wrapped in an
   additional pair of curly braces.

*  Improved support for articles: journal series and electronic ID

   Journal series and article IDs are now catered for by the
   standard styles (entry type 'article'). Note that the 'articleid'
   field has been renamed to 'eid'. See the annotated bibliography
   in the 'examples' directory for examples.

*  DOI support

   The 'doi' field is now catered for by the standard styles
   (complete with hyperlinks). See the annotated bibliography in the
   'examples' directory for examples.

*  Fine-grained control of title formatting

   Previous versions of this package provided two formatting
   directives for the title field: 'title' (for entry types like
   'book', 'collection', etc.) and 'titlein' (for 'article',
   'inbook', 'incollection', etc.). I've enhanced this scheme such
   that the format of the title may be defined on a per-type basis.
   In biblatex.def you'll find the following directives for the
   bibliography:

   \DeclareFieldFormat{title:book}{\emph{#1}\isdot}
   \DeclareFieldFormat{title:inbook}{\enquote{#1}\midsentence}
   ...

   as well as dedicated directives for the titles in citations:

   \DeclareFieldFormat{citetitle:book}{\emph{#1}\isdot}
   \DeclareFieldFormat{citetitle:inbook}{\enquote{#1}\midsentence}
   ...

   and in the list of shorthands:

   \DeclareFieldFormat{lostitle:book}{\emph{#1}\isdot}
   \DeclareFieldFormat{lostitle:inbook}{\enquote{#1}\midsentence}
   ...

   I've updated all generic definitions in biblatex.cbx,
   biblatex.bbx, and standard.bbx accordingly. Note that the
   'title:type' directives are used for both the 'title' and the
   'subtitle' field (which are wrapped in a \printtext command
   controlling the formatting, see the 'title+stitle' bibmacro in
   biblatex.bbx for an example of how it works). In other words:
   redefining the 'subtitle' field formatting directive has no
   effect.

*  Rearranged localization keys

   I've rearranged and extended the localization keys quite a bit.
   This also implies several changes in biblatex.bbx.

*  Support for KOMA-Script and Memoir

   The default definitions of the bibliography headings (as defined
   in biblatex.def) are now automatically adapted for the
   KOMA-Script classes and the Memoir class.

*  Improved Spanish support

   The Spanish localization module now handles the Spanish word
   'and' properly ('y' or 'e', depending on the context).

*  Italian support

   This release comes with a new italian.lbx file. The translations
   were contributed by Enrico Gregorio.

RELEASE NOTES FOR VERSION 0.5

   My original plan for 0.5 was to make minor changes only and focus
   on fixing bugs. Since only a few issues turned up (memory issues
   in biblatex.bst), I ended up implementing new things from the
   wishlist. Please note that the wishlist is closed until after
   version 1.0.

*  New author-title citation styles

   I've added some verbose author-title styles which may be of
   interest for users in the humanities. The styles are called
   'authortitle-verb' and 'authortitle-cverb'. The 'traditional
   style has been renamed to 'authortitle-trad' and there is an
   additional new style called 'authortitle-strad'. The styles
   support shorthands and are fully hyperlinked. The links point to
   the first, verbose citation instead of the bibliography so these
   styles may be used without a bibliography, if desired.

   I've also added a matching 'dummy' bibliography style for every
   citation style. The dummy style will simply load one of the more
   generic backend styles. For example, the 'authortitle-verb' style
   loads the 'authortitle' style. The point is that you may simply
   use the 'style' package option instead of 'citestyle' plus
   'bibstyle'.

*  Conditional special fields, optimizations in biblatex.bst

   The special fields 'labelalpha', 'labelctitle', 'labelnumber',
   and 'labelyear' are conditional now. If a style requires one of
   those fields, it needs to request them by setting the
   corresponding package option. E.g., all numeric styles include
   the line

      \ExecuteBibliographyOptions{labelnumber}

   This will instruct biblatex to provide the 'labelnumber' field
   which is undefined by default now. Making these fields
   conditional allows for some memory-related optimizations in
   biblatex.bst.

*  Author-level support for full citations

   This version adds an author-level command which makes it possible
   to execute a bibliography driver in a citation command. See
   '\rundriver' in the manual.

*  Page tracker

   I've implemented a page tracker. The page tracker records the
   real page on which citations, entries in the bibliography, and
   entries in the list of shorthands end up. It can work on a per
   page basis or per double page spread. The page tracker is
   disabled by default. See the package option 'pagetracker' and the
   commands '\iffirstonpage' and '\ifsamepage' in the manual.

*  Unique indentification of reference instances

   Every 'instance' of a reference is now uniquely identified by a
   value of the 'citecount' counter. In other words: this counter is
   incremented for every key processed by any citation command, for
   every item in the bibliography and for every item in the list of
   shorthands. This is required by the page tracker but it's also
   useful if you need to generate a unique anchor name for
   hyperlinks.

*  Extended support for hyperlinks

   I've renamed '\bibhyperlink' to '\bibhyperref' and added generic
   '\bibhypertarget' and '\bibhyperlink' commands. '\bibhyperref'
   creates a link from a citation to the corresponding item in the
   bibliography. '\bibhypertarget' and '\bibhyperlink' are more
   generic and correspond to the '\hypertarget' and '\hyperlink'
   commands of the hyperref package. The point here is that you
   don't need an explicit '\ifhyperref' check. If hyperlinks are
   disabled, these wrappers will simply pass on their text argument.

   As an additional benefit, they also provide better anchor
   placement. The anchors created by '\hypertarget' seem to be
   located at the baseline, i.e. if you click on a link you get the
   impression that your PDF viewer jumps to the line of text just
   below the one you mean.

*  More name lists

   See the 'annotator', 'commentator', 'introduction', 'foreword',
   and 'afterword' lists in the annotated example.

*  Special fields for indexing

   See the 'indextitle' and 'indexsorttitle' fields in the annotated
   example and the indexing examples.

*  Spanish support

   This release comes with a preliminary spanish.lbx file. The
   translations were contributed by Ignacio Fern\'andez Galv\'an.
   Some advanced features are missing from this file because they
   are still under scrutiny but it should nevertheless be perfectly
   funtional.

*  Examples

   I've added a biblatex showcase with some example files in the
   'examples' subdirectory. There's an example for every citation
   style and some generic examples demonstrating multiple
   bibliographies, split bibliographies, indexing, and so on.

RELEASE NOTES FOR VERSION 0.4

*  Wishlist closed

   As of this release, the wishlist is closed until after version
   1.0. There are already more wishes in the pipeline than I can
   implement in time for 1.0...

RELEASE NOTES FOR VERSION 0.3

   The changelog for this release is shockingly long so I'll just
   point out the general developments behind the individual entries
   in the changelog. See the full changelog for all the gory
   details. Note that styles written for version 0.2 will not work
   with 0.3.

*  New data type: literal list

   This release introduces a new data type for literal lists. The
   point of a literal list is that the list is split up at the 'and'
   but the individual items are not dissected further. This is
   intended for fields such as 'location' and 'publisher' since they
   may contain a list of items but these items are not personal
   names.

   I have modified the macro names of the entire data interface for
   lists to match the change. All macros with the term 'list' in
   their name are renamed such that 'list' is replaced by 'name(s)'.
   For example, \printlist is now \printnames, \DeclareListFormat is
   \DeclareNameFormat, and so on. The old names are used for new
   macros which deal with literal lists. The complete list of
   affected macros is given in the changelog. Note that the names of
   the macros which dump the unformatted data have changes as well
   (\biblist -> \thename; \thelist (new); \bibfield -> \thefield).

   These changes will require updates to all custom citation and
   bibliography styles. However, the changes are only a matter of
   some search & replace commands. I'm sorry about the inconvenience
   but I think the new naming scheme is better than having macro
   names like \printliterallist. I've decided to go for it now since
   biblatex is still in beta.

   As part of these changes, the data type of the following fields
   has been changed from 'literal field' to 'literal list':
   location, origlocation, publisher, institution, organization.

*  Support for hyperref

   Hyperref support is available now. This means that citations may
   be transformed into links pointing to the bibliography. All
   standard citation styles support that out of the box, custom
   styles need to use the new hyperref interface. It works like
   this: the anchor (i.e. the target of the link) is set
   automatically by biblatex hence the bibliography style does not
   need to do anything special. The citation style is responsible
   for marking the link area. This is just a matter of passing the
   relevant part of the citation to a special macro or formatting
   directive doing the low-level work. See the changelog for
   pointers to the relevant sections of the manual.

*  Support for back references

   I've added support for back references. The page numbers are
   provided in the 'pageref' field which uses the new literal list
   data type. Printing them is just a matter of \printlist{pageref}.
   Note that you need to enable the 'backref' package option to get
   any back reference data. There is also a bibmacro called
   'pageref' in biblatex.bbx which adds a label. Bibliography styles
   should print the list via \usebibmacro{pageref}. There are two
   related list formatting directives in biblatex.def. The default
   directive just prints the list as is, using a comma as a
   separator. The directive 'pageref:comp' prints a sequence of more
   than two consecutive pages as a range. The easiest way to try it
   out is: \DeclareListAlias{pageref}{pageref:comp}.

   The references are restricted to page numbers, back references to
   sections are not supported. This is a deliberate decision. I
   haven't bothered implementing back references to sections because
   LaTeX's referencing mechanism is notoriously unreliable in this
   respect. It essentially provides two pieces of information: the
   formatted value of the last counter incremented by way of
   \refstepcounter and the page number. The latter value is usually
   unambiguous but the former could refer to just about everything.
   The implications of this become obvious when you're using the
   backref package with its 'ref' option (rather than 'pageref') and
   put \cite commands in footnotes. The bibliography will then
   include something like 'sections 1, 2, 3', but these numbers do
   not refer to sections, these are footnote numbers!

   Getting back references to sections right would require
   reimplementing LaTeX's entire referencing mechanism (or
   interfacing with a package doing that) and I don't want to get
   into that business just yet. I may look into support for the zref
   package later, but that's something for a post-1.0 release of
   biblatex.

*  Rearranged author-title citation styles

   I've rearranged the author-title citation styles because most
   people seem to expect the behavior of the old 'authortitle-verb'
   style from the plain 'authortitle' style. So 'authortitle-verb'
   is the plain 'authortitle' style now. The style formerly known as
   'authortitle' has been renamed to 'authortitle-terse',
   'authortitle-comp' is 'authortitle-cterse' now. I've also added a
   new 'authortitle-comp' style to round off this subset of styles.

*  Handling of thebibliography/theshorthands streamlined

   The handling of thebibliography and theshorthands as well as some
   related facilities has been overhauled and streamlined. See the
   changelog and section 4.2.2 of the manual for details.

*  Handling of 'and others' simplified

   The way biblatex handles the string 'and others', which is used
   in bib files to truncate a list of names, has been overhauled and
   simplified. Essentially, I have removed 'moreauthor' and similar
   fields since biblatex handles this internally now. All style
   authors need to do is use \ifandothers and/or \ifmorenames. See
   the manual for details.

*  Improved \addtocategory

   \addtocategory now cycles its arguments through the aux file.
   This means that it may be used in the preamble and anywhere in
   the document body, even after \printbibliography.

RELEASE NOTES FOR VERSION 0.2

*  Internal changes in bibliography styles

   I have rearranged all bibliography styles. It should be more
   obvious now how many code is shared by the bibliography styles,
   namely all 'driver' code. The shared code has been moved to
   standard.bbx, so think of that as the biblatex standard style.
   This code is used by numeric.bbx, alphabetic.bbx,
   authortitle.bbx, and authoryear.bbx; standard.bbx is not meant to
   be used stand-alone. A few bibmacros have also been moved to
   biblatex.bbx.

*  Internal changes in citation styles

   There is only one change affecting the citation styles. The
   'postnote' bibmacro in biblatex.cbx now automatically inserts a
   prefix like 'p.' or 'pp.' where applicable.

*  Optional argument for \printtext

   \printtext takes an optional argument now. The point is that you
   can use \printtext as a formatting hook. The advantage of this
   approach is that \printtext integrates with the punctuation
   tracking. I have revised biblatex.bbx to use this approach where
   applicable.

*  New fields

   There are several new fields, some of which are supported by the
   standard styles. This has lead to further changes in
   biblatex.bbx, including changes to the names of existing
   bibmacros.
