- update to version 0.7.7:
 - Added:
  - A xontrib which adds support for autojump to xonsh
  - Added new env-var ``XONSH_HISTORY_MATCH_ANYWHERE``. If set to ``True`` then
    up-arrow history matching will match existing history entries with the search
    term located anywhere, not just at the beginning of the line. Default value is
    ``False``
 - Changed:
  - Improved iteration over virtual environments in Vox.__iter__
 - Fixed:
  - Fix for ``Enter`` not returning from Control-R search buffer
  - Fixed automatic wrapping of many subprocesses that spanned multiple lines via
    line continuation characters with logical operators separating the commands.
    For example, the following now works:
    .. code-block:: sh
          echo 'a' \
          and echo 'b'
  - Environment swapping would not properly reraise errors due to weird
    Python name binding issue.
- update to version 0.7.6:
 - Added:
  - Callable aliases may now accept a ``stack`` argument. If they do, then the
    stack, as computed from the aliases call site, is provided as a list of
    ``FrameInfo`` objects (as detailed in the standard library ``inspect``
    module). Otherwise, the ``stack`` parameter is ``None``.
  - ``SubprocSpec`` now has a ``stack`` attribute, for passing the call stack
    to callable aliases. This defaults to ``None`` if the spec does not
    need the stack. The ``resolve_stack()`` method computes the ``stack``
    attribute.
 - Changed:
  - xonsh/environ.py
    Exceptions are caught in the code executed under Env.swap()
 - Fixed:
  - Scripts are now cached by their realpath, not just abspath.
  - Fixed a potential crash (``AssertionError: wrong color format``) on Python 3.5 and prompt_toolkit 1.
  - The ``completer`` command now correctly finds completion functions
    when nested inside of other functions.
  - Fixed a crash when using the ``$XONSH_STDERR_PREFIX/POSTFIX`` with
    prompt_toolkit and Pygments 2.2.
- update to version 0.7.5:
 - Fixed:
  - Recent command history in ptk2 prompt now returns most recently executed
    commands first (as expected)
  - Fixed a regression taat prevented the readline backend from beeing used. This
    regression was caused by the new ansi-color names, which are incompatible with
    pygments 2.2.
- update to version 0.7.4:
 - Added:
  - New ``xonsh-cat`` command line utility, which is a xonsh replacement
    for the standard UNIX ``cat`` command.
  - The new ``xonsh.xoreutils.cat.cat_main()`` enables the ``xonsh.xoreutils.cat``
    module to be run as a command line utility.
  - New ``CommandsCache.is_only_functional_alias()`` and
    ``CommandsCache.lazy_is_only_functional_alias()`` methods for determining if
    if a command name is only implemented as a function, and thus has no
    underlying binary command to execute.
  - ``xonsh.xontribs.xontribs_load()`` is a new first-class API for loading
    xontribs via a Python function.
  - ``$COMPLETIONS_DISPLAY`` now supports readline-like behavior on
    prompt-toolkit v2.
 - Changed:
  - The xonsh Jupyter kernel now will properly redirect the output of commands
    such as ``git log``, ``man``, ``less`` and other paged commands to the client.
    This is done by setting ``$PAGER = 'cat'``. If ``cat`` is not available
    on the system, ``xonsh-cat`` is used instead.
  - The ``setup()`` function for starting up a working xonsh has ``aliases``,
    ``xontribs``, and ``threadable_predictors`` as new additional keyword
    arguments for customizing the loading of xonsh.
 - Fixed:
  - Fixed a bug with converting new PTK2 colors names to old names when using PTK1 or Jupyter
      as the shell type.
  - ``CommandsCache.locate_binary()`` will now properly return None when
    ``ignore_alias=False`` and the command is only a functional alias,
    such as with ``cd``. Previously, it would return the name of the
    command.
  - Fixed issue with ``$COMPLETIONS_DISPLAY`` raising an error on
    prompt-toolkit v2 when the value was not set to ``multi``.
  - ValueError when executing ``vox list``

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