Release 2.1.6:
Re-generate parser from RecDescent grammer during build; this fixes problem
with backward incompatible RecDescent releases (thx2 choroba@cpan.org).

Release 2.1.5:
Bug fix release (make includes relative to the current script file).

Release 2.1.4:
Bug fix release (prevent renaming attribute if similarly named attribute already exists).

Release 2.1.2:
Bug fixes and minor enhancements.

Changes since 2.1.1:
 - added command-line option -f as an alias for --no-init
 - expand parameters in a command shell pipe
 - fixed documentation URL in the docs (pointed out by Josef Kutej)
 - documentation and command-line option parsing fixes
 - add new functions document_uri, resolve_uri and base_uri
 - fix parsing of numeric literals (e.g. $i=6; ls /foo/bar[$i] now works)
 - add a space to the default prompt

Release 2.1.1:
Bug fixes and minor enhancements.

Changes since 2.1.0:
The project repository was migrated from CVS to SVN.

Several important bug and compatibility fixes and a three new XPath
functions:

 - xsh:lineno()
   returns the line-number of the current node (the function was present
   before but was not documented)
 - xsh:span($start-node,$end-node)
   returns a node-set which forms a span of sibling nodes
   starting at $start-node and ending at $end-node
   (these two must be siblings).

 - xsh:context($node,$before,$after?)
   returns a node-set of sibling nodes surrounding $node. The span
   consists of (up to) $before-many nodes immediately preceding
   $node, the $node itself, and (up to) $after-many nodes
   immediately following $node. If the $after is not given, 
   the value of $before is assumed.

Release 2.1.0:
Feature enhancements.

Changes since 2.0.2:
--------------------
Incompatible Changes:
  - commands 'rename' and 'map' have new syntax and semantics:

     OLD (XSH 2.0.2)              | NEW (XSH 2.1.0)
     -----------------------------+-----------------------------------
     map { $_=uc } //text();      | map { uc } //text();
     map { s/foo/bar/ } //text(); | map :i { s/foo/bar/ } //text();
     map { $_='link' } //ref;     | rename link //ref;

New Features:
  - XSH scripts can be "compiled" (xsh -D) into Perl scripts
    which start faster (see xsh --help for details)
  - XML::XSH2::Compile module allows efficient embedding of
    XSH2 scripts into Perl modules (see the module's manpage)
  - new command 'set' simplifies creating and modifying nodes
  - new command 'hash' simplifies hashing/grouping nodes by arbitrary keys
  - new commands 'change-ns-prefix' and 'change-ns-uri' add full control
    over namespace declarations
  - XPath functions xsh:match() (regexp matching),
    xsh:filename() (introspection), and xsh:lookup() (hash retrieval),
    xsh:document() (get open document by filename), and xsh:documents()
    (get all open documents)
  - the interactive shell has a customizable prompt

Enhancements:
  - the mapping expression of 'rename' and 'map' can be XPath
  - added save --encoding flag
  - added echo --no-space (:n) flag
  - pwd and locate can return paths based on a nearest (ancestor-or-self) ID 
  - completion for default, xsh, and user-defined XPath functions
  - improved namespace handling
  - filenames of documents parsed from a file are absolute
  - many bugfixes

Release 2.0.2:
Minor feature enhancements and bug fixes.

Changes since 2.0.1:
-------------------
 - history file can be specified via $HISTORY variable
 - history file now defaults to ~/.xsh2_history
 - 'print' (aka echo) has a new flag: --stderr (:e)
 - 'wrap' has a new flag --inner (:i):
      wrap --inner a //b (produces <b><a>...</a></b> from <b>...</b>)
 - new 'apropos' command for searching the help
 - 'save' has a new flag: --subtree (:S)
 - various scattered fixes in the documentation
 - bug fixed that prevented &{...} construct to work in perl>=5.8.5

Release 2.0.1:
Major feature enhancements.

Changes since 1.8.2:
--------------------
XSH2 language:
 - language syntax changed: see http://xsh.sf.net/doc2/chunks/xsh2delta.html
 - unified XPath and Perl data model
 - only one kind of variables
 - better integration with Perl: any argument can be specified either
   as an XPath or Perl expression
 - commands and user-defined subroutines can return arbitrary objects
 - commands have flags and named-parameters (instead of many optional
   positional arguments as in XSH1): --flag or :f and --param val or
   :p val
 - various commands provide better functionality based on new options
   and flags introduced in XSH2
 - true lexical variables (a.k.a. my)
 - several new commands introduced:
   edit, edit-string, canonical, index, my, set-dtd, expr, do
 - new 'eval' command evaluates given string as XSH2
 - several new XPath extension functions added:
   xsh:id2, xsh:lcfirst, xsh:lc, xsh:ucfirst, xsh:uc, xsh:new-attributes
 - faster XSH-parser, faster evaluation engine

Release 1.8.2:

Changes since 1.8 (CVS)
------------------
Incompatible changes:
   - xsh now uses UTF8 as the default encoding and query-encoding.
     You may change it to your prefered charset by adding 
     lines 
       encoding <charset>;
       query-encoding <charset>;
     into your ~/.xshrc.

New features:
   - new xsh option --format to start with indent 1 and keep_blanks 0
   - new xsh options --input (-I), --output (-O), and --process (-P) to
     automatically open given file (as a default document called _ - underscore)
     and save it after the processing
   - external DTD validation support (valid, validate)
   - RelaxNG and XSD validation support for valid and validate
     (may require CVS LibXML)
   - conditional variant of include (ifinclude) added
   - new commands set-enc and set-standalone allow changing the
     values in document's XML decl
   - new option commands affecting serialization: empty-tags ($EMPTY_TAGS) and 
     skip-dtd ($SKIP_DTD)

Support:
   - new Perl module: XML::XSH2::Inline to simplify inclusion of inline XSH
     code in Perl programs

Bug fixes:
   - fixed broken XPath extension functions (xsh:grep, xsh:matches, ...)
   - encoding related fix for Perl 5.8 (now using Encode in Perl 5.8)
   - serialization now doesn't force utf-8 encoding on files with no
     encoding specified
   - fixed @ARGV passing
   - documentation fixes
   - bug fixes


Release 1.8:

Changes since 1.7 (CVS)
------------------
New features:

* User Interface: 

  - Major TAB-completion improvements: XPath-completion (can be disabled
    for large documents), improved filename, command, variable and
    keyword completion. 
  - xsh without arguments starts in interactive shell mode if run from a
    terminal
  - xsh -p for easier pipe-line XML processing.
  - xsh now defines long variants for command-line options.
  - xsh --man displays nice manual page.
 
* Language: 
  - register-namespace (regns) command for registering a namespace
    prefix to be used in XPath queries.
  - register-function (regfunc) command allowing writing a custom
    XPath extension functions (in Perl) - EXPERIMENTAL
  - XPath extensions functions xsh:doc,xsh:matches,xsh:grep,xsh:same
    (check xsh help xpath or the on-line documentation here).
  - undef command to undefine existing XSH subroutines allowing
    include-scripts to be reloaded - EXPERIMENTAL
  - stream command for processing huge documents, that do not fit into
    memory - EXPERIMENTAL
  - rename command similar to map but working on node's name rather
    than content.
  - Some document-oriented commands (such as save) no longer require
    arguments (assuming current document's ID by default)
 
  * Support: 
  - Improved documentation: manpages (xsh(1) and XSH(3)), and
    command-line help xsh --help, xsh --man.
  - xsh now uses long options.
  - Simplified Windows installation based on PPM.
  - Disabled GDOME support
  - Bug fixes.
  - Updated bundle of requred modules

Changes since 1.7 (CVS)
-----------------------

  - bug fixes.
  - new try {...} catch [[local] $var] {...} syntactic construction
    allows to catch and handle parsing and other errors.
  - new throw command (aka perl { die "...\n" })
  - new Perl/PHP-like last, next, redo, return loop and subroutine 
    interruption commands
  - new strip command for stripping whitespace
  - new normalize command for puting adjacent text nodes together
  - new catalog command makes the XML parser use a given catalog file
  - new experimental iterate command
  - changed sort command syntax (you've been warned)
  - completion improvements (now little more context sensitive and
    completes variable, subroutine and help chapter names)
  - new Perl support function type to check node types
  - Perl support functions now return lists in array context
  - added -w command-line option to turn all DTD related stuff off
  - added -a command-line option to pass command line arguments to a
    XSH script via Perl's @ARGV added -l command-line option to pass
    script name 
  - access to all configuration flags/options (such as validation)
    through variables to allow making changes local (read `help flag'
    or run var to see a list) and some more...

Changes since 1.5
------------------
Requires:
  - XML::LibXML 1.54

New features:
  - local (temporary) variables
  - subroutine may take parameters
  - forward defs (with no body) allow recursion
  - call strongly checks argument types
  - new location keywords: append, prepend
  - new location semantics (mostly clean-up)
  - perl-code result substitution in expressions using ${{{ ... }}}
  - string xpath result substitution in expressions using ${( ... )}
  - new Perl functions: literal, xml_list and count
  - new switch-to-new-documents flag (allows to disable selecting
  - simplified and more general open/save commands
  - support document level node insertion
  - improved error reporting from XSH grammar parser
  - docbook loading support
  - pipeline redirection may follow statements
  - grammar optimizations (some more speed-up achieved)

Other changes:
  - XSH now starts with validation 0
  - new xsh option -v allows starting with validation on
  - obsolete xsh -c flag removed
  - documentation enhancements

Bug fixes:
  - indentation fixes
  - fixed ReadLine::Gnu completion support
  - ~/.xsh_history works for Term::ReadLine::Gnu now
  - fixed doubled history entries
  - double/single quoting fixed in expressions
  - experimental support for entity reference insertion
  - fixed error catching
  - fixed and improved Ctrl+C handling
  - some more bug-fixes