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*************************
What's New in Bazaar 2.3?
*************************
Bazaar 2.3 is still under development, and will be released in February
2011. This document accumulates a high level summary of what's changed.
See the
:doc:`../release-notes/index` for a full list.
Users are encouraged to upgrade from the other stable series. This
document outlines the improvements in Bazaar 2.3 vs Bazaar 2.2. As well as
summarizing improvements made to the core product, it highlights
enhancements within the broader Bazaar world of potential interest to
those upgrading.
Bazaar 2.3.0 is fully compatible both locally and on the network with 2.0
2.1, and 2.2, and can read and write repositories generated by all
previous versions.
Changed Behaviour
*****************
* The default ``ignore`` file created by Bazaar will contain ``__pycache__``,
which is the name of the directory that will be used by Python to store
bytecode files.
(Andrea Corbellini, #626687)
* The default sort order for the ``bzr tags`` command now uses a natural sort
where numeric substrings are sorted numerically. The previous default was
"asciibetical" where tags were sorted by the characters they contained. To
get the old behavior, one can use ``bzr tags --sort=alpha``.
(Neil Martinsen-Burrell, #640760)
Launchpad integration
*********************
* The ``lp:`` prefix will now use your known username (from
``bzr launchpad-login``) to expand ``~`` to your username. For example:
``bzr launchpad-login user && bzr push lp:~/project/branch`` will now
push to ``lp:~user/project/branch``. (John Arbash Meinel)
Performance improvements
************************
* ``bzr revert`` and ``bzr status`` are up to 15% faster on large trees
with many changes by not repeatedly building a list of all file-ids.
(Andrew Bennetts)
* ``bzr send`` uses less memory.
(John Arbash Meinel, #614576)
* Inventory entries now consume less memory (on 32-bit Ubuntu file entries
have dropped from 68 bytes to 40, and directory entries from 120 bytes
to 48). This affects most operations, and depending on the size of the
tree may substantially improve the speed of operations like ``bzr
commit``. (Andrew Bennetts)
* Lower memory consumption when reading many chk index pages. Helpful for
things like ``bzr co`` or ``bzr ls -R`` on large trees.
(John Arbash Meinel)
* When building new working trees, default to reading from the repository
rather than the source tree unless explicitly requested. (via
``--files-from`` and ``--hardlink`` for ``bzr branch`` and
``bzr checkout``. Generally, 2a format repositories extract
content faster than seeking and reading content from another tree,
especially in cold-cache situations. (John Arbash Meinel, #607298)
New revision specifiers
***********************
* The ``mainline`` revision specifier has been added. It takes another revision
spec as its input, and selects the revision which merged that revision into
the mainline.
For example, ``bzr log -vp -r mainline:1.2.3`` will show the log of the
revision that merged revision 1.2.3 into mainline, along with its status
output and diff. (Aaron Bentley)
* The ``annotate`` revision specifier has been added. It takes a path and a
line as its input (in the form ``path:line``), and selects the revision which
introduced that line of that file.
For example: ``bzr log -vp -r annotate:bzrlib/transform.py:500`` will select
the revision that introduced line 500 of transform.py, and display its log,
status output and diff.
It can be combined with ``mainline`` to select the revision that landed this
line into trunk, like so:
``bzr log -vp -r mainline:annotate:bzrlib/transform.py:500``
(Aaron Bentley)
Testing/Bug reporting
*********************
* Shell-like scripts can now be run directly from the command line without
writing a python test. This should help users adding reproducing recipes
to bug reports. (Vincent Ladeuil)
Improved conflict handling
**************************
* ``pull``, ``merge`` or ``switch`` can lead to conflicts when deleting a
versioned directory contains unversioned files. The cause of the conflict
is that deleting the directory will orphan the unversioned files so the
user needs to instruct ``bzr`` what do to do about these orpahns. This is
controlled by setting the ``bzr.transform.orphan_policy`` configuration
variable with a value of ``move``. In this case the unversioned files are
moved to a ``bzr-orphans`` directory at the root of the working tree. The
default behaviour is specified (if needed) by setting the variable to
``conflict``. (Vincent Ladeuil, #323111)
* ``bzr resolve`` now provides more feedback about the conflicts just
resolved and the remaining ones. (Vincent Ladeuil)
Documentation
*************
* A beta version of the documentation is now available in GNU TexInfo
format, used by emacs and the standalone ``info`` reader.
(Vincent Ladeuil, #219334)
Configuration
*************
``bzr`` can be configured via environment variables, command-line options
and configurations files. We've started working on unifying this and give
access to more options. The first step is a new ``bzr config`` command that
can be used to display the active configuration options in the current
working tree or branch as well as the ability to set or remove an
option. Scripts can also use it to get only the value for a given option.
Expected releases for the 2.3 series
************************************
The 2.3 series has entered the beta phase and 2.3.0 should be released soon
enough to be included into Natty Narwhal.
As a rough estimate, consider that 2.3.0 will be released in February
2011 and be supported until August 2012. Additional releases will be
made if critical bugs are encountered
Further information
*******************
For more detailed information on the changes made, see the
the :doc:`../release-notes/index` for:
* the interim bzr `milestones <https://launchpad.net/bzr/2.3>`_
* the plugins you use.
For a summary of changes made in earlier releases, see:
* :doc:`whats-new-in-2.1`
* :doc:`whats-new-in-2.2`
.. vim: ft=rst
|