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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)
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)
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)
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
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