v0.18

• \inputpygments now checks inputted files for modification, so that
  typeset code will correctly update when the source is changed (#162).

• Julia now uses project flag "--project=@." (#157, #158).

• Fixed bug in processing Pygments options (pygopt) when a key is used
  without a value (#181).

• Some error handling for Windows was incompatible with other operating
  systems: replaced checks for WindowsError with checks for OSError
  (#177).

• Rust support is now compatible with document and working directory paths
  that contain spaces (#167).

v0.17

• Pygments syntax highlighting for the Python console (pycon lexer) now
  uses the python3 option, and the default Python lexer is now
  python3 (#156).

• Added support for JavaScript (#147; thanks to Nathan Carter).

• Updated Julia support for Julia versions 0.6 (#107), and 0.7 and 1.0 (#126,
  #130).

• There are now meaningful error messages for the Julia console when Weave.jl
  is not installed or raises errors (#131).

• pythontexcustomcode and \pythontexcustomc now set
  pytex.context (#65).

• Added support for R. The R family of commands and environments
  (\R, \Rc, Rcode, ...) executes code as a script.
  There is currently no utilities class or equivalent. The Rcon family
  (Rconsole) executes code to emulate an interactive R session (#121).

• fancyvrb settings from \setpythontexfv and console
  environments now work with Julia and R consoles.

• pythontexcustomcode now works with juliacon. There are now proper
  juliaconcode and Rconcode environments that execute code but
  typeset nothing, to parallel pyconcode (#134).

• Added support for Perl with the perl and pl families of commands
  and environments. There is currently no utilities class or equivalent.

• Added support for Perl 6 with the perlsix and psix families of
  commands and environments (#104). There is currently no utilities class or
  equivalent.

• Updated Rust support by using dyn with traits in utilities object.

• Under Windows, capitalization of script paths in stderr is now
  preserved.

• Fixed a bug that prevented the sub environment from working with
  depythontex (#155).

• Fixed a bug in checking mtime of dependencies to see if they have been
  modified while pythontex is running. The check failed for dependencies
  that do not exist or were deleted before pythontex can read them
  (#136).

v0.16

• Added preliminary console support for Julia (#98).

• Fixed Python console compatibility with Python 3.6 by setting the code
  module's new exitmsg argument to suppress the exit message (#100).

• Improved Rust support, including tracking of created files and
  dependencies (#91).

v0.15

New features

• The fvextra package is now required. This provides line breaking with
  fine-grained control over break locations, the ability to highlight
  specific lines or ranges of lines, improved handling of tabs, and several
  additional features.
• Added sub commands and environments (\pys, pysub, ...). These
  commands and environments perform string interpolation on text. Fields
  delimited by !{...} are replaced by the result of evaluating and then
  printing their content. This works for all families of commands and
  environments, not just Python. See the documentation for details about
  field delimiters and escaping.
• Added rust and rs families of commands and environments. These
  provide essentially complete support for Rust, except that
  rstex.formatter(), rstex.before(), and rstex.after() will
  likely need additional refinement (#90).
• Added the sage family of commands and environments, which provide
  support for Sage (#63).
• Added bash family of commands and environments. This provides basic
  support for bash (no utilities class or equivalent). Bash works with
  Windows if it is installed.
• Improved console compatibility under Linux with Python 3 (#70).
• Counters for default sessions are now created automatically. This prevents
  counter errors under some circumstances when working with \includeonly.
• Commands like \py can now output verbatim content under LuaTeX.

Bugfixes

• Fixed a bug that could cause an endless loop when a code command or
  environment printed a code command or environment of the same family
  with autoprint=true.

v0.14

v0.14 (2014/07/17)

New features

• All commands for working with code inline are now robust, via
  etoolbox's \newrobustcmd. Among other things, this allows
  commands like \py to work in standard captions that have not been
  redefined to avoid protection issues.
• Upgraded syncpdb to v0.2, which provides better list formatting.

Backward-incompatible changes

• The default working directory is now the main document directory instead
  of the output directory. Using the output directory was a common source
  of confusion for new users and was incompatible with plans for future
  development. Old documents in which the working directory was not
  specified will continue to use the output directory, but PythonTeX will
  print an upgrade message; new documents will use the new setting. The
  output directory may be selected as the working directory manually, or
  with the shorthand
  "\setpythontexworkingdir{<outputdir>}".
• Standardized version numbering by removing the "v" prefix from the stored
  version numbers in Python variables and LaTeX macros. Standardized the
  PythonTeX scripts by renaming version to __version__.

v0.13

v0.13 (2014/07/14)

New features

• Added --interactive command-line option. This runs a single
  session in interactive mode, allowing user input. Among other things,
  this is useful when working with debuggers.
• Added --debug command-line option. This runs a single session
  with the default debugger in interactive mode. Currently, only
  standard (non-console) Python sessions are supported. The default
  Python debugger is the new syncpdb, which wraps pdb and
  synchronizes code line numbers with document line numbers. All
  pdb commands that take a line number or filename:lineno as an
  argument will refer to document files and line numbers when the
  argument has a percent symbol (%) as a prefix. For example,
  list %50 lists code that came from around line 50 in the
  document. The --debug option will support other languages and
  provide for customization in the future.
• Added command-line option --jobs, which allows the maximum number
  of concurrent processes to be specified (#35).
• Added support for GNU Octave, via the octave family of commands
  and environments (#36). Parsing of Octave stderr is not ideal, though
  synchronization works in most cases; this will be addressed by a
  future rewrite of the stderr parser.
• Installer now automatically works with MiKTeX, not just TeX Live.
• The PythonTeX utilities class has a new open() method that opens
  files and automatically tracks dependencies/created files.
• When pythontex2.py and pythontex3.py are run directly, the
  Python interpreter is automatically set to a reasonable default
  (py -2 or py -3 under Windows, using the Python 3.3+ wrapper;
  python2 or python3 under other systems).
• The installer now creates symlinks for the numbered scripts
  pythontex*.py and depythontex*.py.
• Added Python version checking to all numbered scripts.
• Under Python, the type of data passed via \setpythontexcontext may
  now be set using YAML-style tags (!!str, !!int, !!float). For
  example, {myint=!!int 123}.
• The fancyvrb options firstline and lastline now work with
  the pygments environment and \inputpygments command. This required
  some additional patching of fancyvrb.
• The pytx@Verbatim and pytx@SaveVerbatim environments are now
  used for typesetting verbatim code. These are copies of the
  fancyvrb environments. This prevents conflicts when literal
  Verbatim and SaveVerbatim environments need to be typeset.
• Improved latexmk compatibility (#40). Added discussion of
  latexmk usage to documentation.
• Tildes ~ may now be used in outputdir and workingdir to
  refer to the user’s home directory, even under Windows.

Bugfixes

• Fixed a bug that prevented created files from being cleaned up when
  the working directory was not the document root directory and the
  full path to the files was not provided.
• Fixed a bug that prevented the fvextfile option from working when
  external files were highlighted.

v0.13-beta

v0.13-beta (2014/02/06)

New features

• Switching to GitHub's Releases for downloads.
• TeX information such as page dimensions may now be easily passed to
  the programming-language side, using the new \setpythontexcontext
  command. Contextual information is stored in the context attribute
  of the utilities class, which is a dictionary (and also has
  attributes in Python).
• The utilities class now has pt_to_in(), pt_to_cm(), and
  pt_to_mm() methods for converting units of TeX points into inches,
  centimeters, and millimeters. These work with integers and floats,
  as well as strings that consist of numbers and optionally end in
  "pt". There is also a pt_to_bp() for converting TeX points
  (1/72.27 inch) into big (DTP or PostScript) points (1/72 inch).
• Expanded Quickstart. Quickstart is now compatible with all LaTeX
  engines. Quickstart now avoids microtype issues on some systems
  (#32).
• Added information on citing PythonTeX (#28).
• Utilities class has a new attribute id, which is a string that
  joins the command family name, session name, and session restart
  parameters with underscores. This may be used in creating files that
  need a name that contains a unique, session-based identifier (for
  example, names for figures that are saved automatically).

Backward-incompatible changes

• All utilities-class attributes with names of the form input_* have
  been renamed with the "input_" removed. Among other things, this
  makes it easier to access the context attribute (pytex.context
  vs. pytex.input_context).
• depythontex now has -o and --output command-line options for
  specifying the name of the output file. If an output file is not
  specified, then output is written to stdout. This allows
  depythontex output to be piped to another program.
• All scripts *2.py now have shebangs with env python2, and all
  scripts *3.py now have shebangs with env python3. This allows
  the wrapper scripts (env python shebang) to be used with the
  default Python installation, and the numbered scripts to be used
  with specific versions. Remember that except for console content,
  the --interpreter option is what determines the Python version
  that actually executes code. The version of Python used to launch
  pythontex.py merely determines the version that manages code
  execution. (--interpreter support for console content is coming.)
• Changed the template style used in the CodeEngine class.
  Replacement fields are now surrounded by single curly braces (as in
  Python's format string syntax), rather than double curly braces.
  Literal curly braces are obtained by doubling braces. This allows
  the use of literal adjacent double braces in templates, which was
  not possible previously.
• The Julia template now uses the new in() function, replacing
  contains(). This requires Julia v0.2.0+.

Bugfixes

• Modified test for LuaTeX, so that \directlua is not \let to
  \relax if it does not exist. This was causing incompatibility with
  babel under pdfTeX and XeTeX (#33).
• Added missing shebangs to depythontex*.py. Handling of utilspath
  is now more forgiving, so that pythontex_utils.py can be installed
  in alternate locations (#23).
• depythontex no longer leaves a blank line where
  \usepackage{pythontex} was removed.
• Console environments typeset with fancyvrb no longer end with an
  unnecessary empty line.
• Fixed bug in installer when kpsewhich was not found (#21).