Bazaar 1.6.1 released!

[John Arbash Meinel]

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An update to the 1.6 release has just been made final. The 1.6 release had a
couple of issues that necessitated cutting a 1.6.1 release. A bit of
performance tweaking, and a bit of stacked and rich-root repository polishing.
Users who tried out '--1.6-rich-root' are requested to upgrade to
'--1.6.1-rich-root' which is what the original format was meant to be (it
properly stacks on other rich-root formats, and won't accidentally allow
'subtree' data.)

The source code is available at:
https://launchpad.net/bzr/1.6/1.6.1
Windows and Mac installers should be available shortly.

Ubuntu packages have already been uploaded to the bzr stable ppa at:
https://launchpad.net/~bzr/+archive

Thanks to those who were using 1.6 and exposed some edge cases that needed to
be fixed.

John
=:->

Release Notes for all changes since bzr 1.6:


bzr 1.6.1 2008-09-05
- --------------------

A couple regressions were found in the 1.6 release. There was a
performance issue when using ``bzr+ssh`` to branch large repositories,
and some problems with stacking and ``rich-root`` capable repositories.


bzr 1.6.1rc2 2008-09-03
- -----------------------

  BUG FIXES:

    * Copying between ``rich-root`` and ``rich-root-pack`` (and vice
      versa) was accidentally using the inter-model fetcher, instead of
      recognizing that both were 'rich root' formats.
      (John Arbash Meinel, #264321)


bzr 1.6.1rc1 2008-08-29
- -----------------------

This release fixes a few regressions found in the 1.6 client. Fetching
changes was using an O(N^2) buffering algorithm, so for large projects it
would cause memory thrashing. There is also a specific problem with the
``--1.6-rich-root`` format, which prevented stacking on top of
``--rich-root-pack`` repositories, and could allow users to accidentally
fetch experimental data (``-subtree``) without representing it properly.
The ``--1.6-rich-root`` format has been deprecated and users are
recommended to upgrade to ``--1.6.1-rich-root`` immediately.  Also we
re-introduced a workaround for users who have repositories with incorrect
nodes (not possible if you only used official releases).
I should also clarify that none of this is data loss level issues, but
still sufficient enough to warrant an updated release.

  BUG FIXES:

    * ``RemoteTransport.readv()`` was being inefficient about how it
      buffered the readv data and processed it. It would keep appending to
      the same string (causing many copies) and then pop bytes out of the
      start of the string (causing more copies).
      With this patch "bzr+ssh://local" can improve dramatically,
      especially for projects with large files.
      (John Arbash Meinel)

    * Revision texts were always meant to be stored as fulltexts. There
      was a bug in a bzr.dev version that would accidentally create deltas
      when copying from a Pack repo to a Knit repo. This has been fixed,
      but to support those repositories, we know always request full texts
      for Revision texts. (John Arbash Meinel, #261339)

    * The previous ``--1.6-rich-root`` format used an incorrect xml
      serializer, which would accidentally support fetching from a
      repository that supported subtrees, even though the local one would
      not. We deprecated that format, and introduced a new one that uses
      the correct serializer ``--1.6.1-rich-root``.
      (John Arbash Meinel, #262333)



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