####################
Bazaar Release Notes
####################

.. toctree::
   :maxdepth: 1

bzr 1.7.1
#########

:Released:  2008-10-01

No changes from 1.7.1rc1.


bzr 1.7.1rc1
############

:Released: 2008-09-24

This release just includes an update to how the merge algorithm handles
file paths when we encounter complex history.

Features
********

* If we encounter a criss-cross in history, use information from
  direct Least Common Ancestors to resolve inventory shape (locations
  of files, adds, deletes, etc). This is similar in concept to using
  ``--lca`` for merging file texts, only applied to paths.
  (John Arbash Meinel)


bzr 1.7
#######

:Released: 2008-09-23

This release includes many bug fixes and a few performance and feature
improvements.  ``bzr rm`` will now scan for missing files and remove them,
like how ``bzr add`` scans for unknown files and adds them. A bit more
polish has been applied to the stacking code. The b-tree indexing code has
been brought in, with an eye on using it in a future repository format.
There are only minor installer changes since bzr-1.7rc2.

Features
********

* Some small updates to the win32 installer. Include localization
  files found in plugins, and include the builtin distutils as part of
  packaging qbzr. (Mark Hammond)


bzr 1.7rc2
##########

:Released: 2008-09-17

A few bug fixes from 1.7rc1. The biggest change is a new
``RemoteBranch.get_stacked_on_url`` RPC. This allows clients that are
trying to access a Stacked branch over the smart protocol, to properly
connect to the stacked-on location.

Bug Fixes
*********

* Branching from a shared repository on a smart server into a new
  repository now preserves the repository format.
  (Andrew Bennetts, #269214)

* Branching from a stacked branch via ``bzr+ssh`` can properly connect
  to the stacked-on branch.  (Martin Pool, #261315)

* ``bzr init`` no longer re-opens the BzrDir multiple times.
  (Vincent Ladeuil)

* Fix '_in_buffer' AttributeError when using the -Dhpss debug flag.
  (Andrew Bennetts)


bzr 1.7rc1
##########

:Released: 2008-09-09

This release candidate for bzr 1.7 has several bug fixes and a few
performance and feature improvements.  ``bzr rm`` will now scan for
missing files and remove them, like how ``bzr add`` scans for unknown
files and adds them. A bit more polish has been applied to the stacking
code. The b-tree indexing code has been brought in, with an eye on using
it in a future repository format.


Changes
*******

* ``bzr export`` can now export a subdirectory of a project.
  (Robert Collins)

* ``bzr remove-tree`` will now refuse to remove a tree with uncommitted
  changes, unless the ``--force`` option is specified.
  (Lukáš Lalinský, #74101)

* ``bzr rm`` will now scan for files that are missing and remove just
  them automatically, much as ``bzr add`` scans for new files that
  are not ignored and adds them automatically. (Robert Collins)

Features
********

* Support for GSSAPI authentication when using FTP as documented in
  RFC2228. (Jelmer Vernooij, #49623)

* Add support for IPv6 in the smart server. (Jelmer Vernooij, #165014)

Improvements
************

* A URL like ``log+file:///tmp`` will log all access to that Transport
  to ``.bzr.log``, which may help in debugging or profiling.
  (Martin Pool)

* ``bzr branch`` and ``bzr push`` use the default stacking policy if the
  branch format supports it. (Aaron Bentley)

* ``bzr init`` and ``bzr init-repo`` will now print out the same as
  ``bzr info`` if it completed successfully.
  (Marius Kruger)

* ``bzr uncommit`` logs the old tip revision id, and displays how to
  restore the branch to that tip using ``bzr pull``.  This allows you
  to recover if you realize you uncommitted the wrong thing.
  (John Arbash Meinel)

* Fix problems in accessing stacked repositories over ``bzr://``.
  (Martin Pool, #261315)

* ``SFTPTransport.readv()`` was accidentally using ``list += string``,
  which 'works', but adds each character separately to the list,
  rather than using ``list.append(string)``. Fixing this makes the
  SFTP transport a little bit faster (~20%) and use a bit less memory.
  (John Arbash Meinel)

* When reading index files, if we happen to read the whole file in a
  single request treat it as a ``_buffer_all`` request. This happens
  most often on small indexes over remote transports, where we default
  to reading 64kB. It saves a round trip for each small index during
  fetch operations. Also, if we have read more than 50% of an index
  file, trigger a ``_buffer_all`` on the next request. This works
  around some inefficiencies because reads don't fall neatly on page
  boundaries, so we would ignore those bytes, but request them again
  later. This could trigger a total read size of more than the whole
  file. (John Arbash Meinel)

Bug Fixes
*********

* ``bzr rm`` is now aliased to ``bzr del`` for the convenience of svn
  users. (Robert Collins, #205416)

* Catch the infamous "select/poll returned error" which occurs when
  pycurl try to send a body request to an HTTP/1.0 server which has
  already refused to handle the request. (Vincent Ladeuil, #225020)

* Fix ``ObjectNotLocked`` errors when using various commands
  (including ``bzr cat`` and ``bzr annotate``) in combination with a
  smart server URL.  (Andrew Bennetts, #237067)

* ``FTPTransport.stat()`` would return ``0000`` as the permission bits
  for the containing ``.bzr/`` directory (it does not implement
  permissions). This would cause us to set all subdirectories to
  ``0700`` and files to ``0600`` rather than leaving them unmodified.
  Now we ignore ``0000`` as the permissions and assume they are
  invalid. (John Arbash Meinel, #259855)

* Merging from a previously joined branch will no longer cause
  a traceback. (Jelmer Vernooij, #203376)

* Pack operations on windows network shares will work even with large
  files. (Robert Collins, #255656)

* Running ``bzr st PATH_TO_TREE`` will no longer suppress merge
  status. Status is also about 7% faster on mozilla sized trees
  when the path to the root of the tree has been given. Users of
  the internal ``show_tree_status`` function should be aware that
  the show_pending flag is now authoritative for showing pending
  merges, as it was originally. (Robert Collins, #255204)

* Set valid default _param_name for Option so that ListOption can embed
  '-' in names. (Vincent Ladeuil, #263249)

* Show proper error rather than traceback when an unknown revision
  id is specified to ``bzr cat-revision``. (Jelmer Vernooij, #175569)

* Trailing text in the dirstate file could cause the C dirstate parser
  to try to allocate an invalid amount of memory. We now properly
  check and test for parsing a dirstate with invalid trailing data.
  (John Arbash Meinel, #186014)

* Unexpected error responses from a smart server no longer cause the
  client to traceback.  (Andrew Bennetts, #263527)

* Use a Windows api function to get a Unicode host name, rather than
  assuming the host name is ascii.
  (Mark Hammond, John Arbash Meinel, #256550)

* ``WorkingTree4`` trees will now correctly report missing-and-new
  paths in the output of ``iter_changes``. (Robert Collins)

Documentation
*************

* Updated developer documentation.  (Martin Pool)

API Changes
***********

* Exporters now take 4 parameters. (Robert Collins)

* ``Tree.iter_changes`` will now return False for the content change
  field when a file is missing in the basis tree and not present in
  the target tree. Previously it returned True unconditionally.
  (Robert Collins)

* The deprecated ``Branch.abspath`` and unimplemented
  ``Branch.rename_one`` and ``Branch.move`` were removed. (Jelmer Vernooij)

* BzrDir.clone_on_transport implementations must now accept a stacked_on
  parameter.  (Aaron Bentley)

* BzrDir.cloning_metadir implementations must now take a require_stacking
  parameter.  (Aaron Bentley)

Testing
*******

* ``addCleanup`` now takes ``*arguments`` and ``**keyword_arguments``
  which are then passed to the cleanup callable as it is run. In
  addition, addCleanup no longer requires that the callables passed to
  it be unique. (Jonathan Lange)

* Fix some tests that fail on Windows because files are deleted while
  still in use.
  (Mark Hammond)

* ``selftest``'s ``--starting-with`` option can now use predefined
  prefixes so that one can say ``bzr selftest -s bp.loom`` instead of
  ``bzr selftest -s bzrlib.plugins.loom``. (Vincent Ladeuil)

* ``selftest``'s ``--starting-with`` option now accepts multiple values.
  (Vincent Ladeuil)

Internals
*********

* A new plugin interface, ``bzrlib.log.log_adapters``, has been added.
  This allows dynamic log output filtering by plugins.
  (Robert Collins)

* ``bzrlib.btree_index`` is now available, providing a b-tree index
  layer. The design is memory conservative (limited memory cache),
  faster to seek (approx 100 nodes per page, gives 100-way fan out),
  and stores compressed pages allowing more keys per page.
  (Robert Collins, John Arbash Meinel)

* ``bzrlib.diff.DiffTree.show_diff`` now skips changes where the kind
  is unknown in both source and target.
  (Robert Collins, Aaron Bentley)

* ``GraphIndexBuilder.add_node`` and ``BTreeBuilder`` have been
  streamlined a bit. This should make creating large indexes faster.
  (In benchmarking, it now takes less time to create a BTree index than
  it takes to read the GraphIndex one.) (John Arbash Meinel)

* Mail clients for `bzr send` are now listed in a registry.  This
  allows plugins to add new clients by registering them with
  ``bzrlib.mail_client.mail_client_registry``.  All of the built-in
  clients now use this mechanism.  (Neil Martinsen-Burrell)


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