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This document describes the processes for making and announcing a Bazaar
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release, and managing the release process.
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We normally have one person acting as the release manager, who
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organizes development for the release and also actually makes the release
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tarball and posts announcements. It can be a different person from one
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See also: `Bazaar Developer Document Catalog <index.html>`_.
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release, and managing the release process. This is just one phase of the
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`overall development cycle <cycle.html>`_, but it's the most complex part.
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This document gives a checklist you can follow from start to end in one
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Our usual process is that one week before release we will make a release
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branch from the trunk. We do one commit to that branch to change the
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version number to 'rc1', and advance the trunk version to 'dev' for the
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We then publish and announce this release candidate according to the
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process below. We then have a week of general testing of the rc,
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including some time for plugin authors to update their code for any
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Normally no changes will be made on the release branch unless serious bugs
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or regressions are found, and the release manager decides they should be
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merged in. After one week, the release branch's version number is updated
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and it's published as the final release. If regressions or serious
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problems are discovered after the final release we may make an additional
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point release from that branch.
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The process or timing can vary if that seems appropriate in a particular
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case but we try to release on a regular four week cycle.
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The net effect is that the code gets some extra testing before release,
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and the trunk is always open for general development.
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To start a new release cycle:
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#. Send mail to the list with the key dates, who will be the release
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manager, and the main themes or targetted bugs. Ask people to nominate
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objectives, or point out any high-risk things that are best done early,
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or that interact with other changes.
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#. Add a new "series" in Launchpad at <https://launchpad.net/bzr/+addseries>. There is one
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series for every *x.y* release.
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Every week the release manager should send a mail to the Bazaar list
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covering these points (as appropriate):
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* Early communication about changing dependencies or defaults
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* Reminder re lifecycle and where we're up to right now, in particular the
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dates for the next release and/or candidate.
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* Summary of recent successes and pending work.
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* Reminder re release objectives
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* Reminder re things needing attention, e.g. bug triage, reviews, testing of certain things, etc.
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Preparing the tree for release
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------------------------------
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.. Was previously at http://bazaar-vcs.org/ReleaseChecklist
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.. TODO: Still needs more clarity on what's in a RC versus a final
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This is the procedure for making a new bzr release:
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#. If the release is the first candidate, make a new branch in PQM.
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(Contact Robert Collins for this step).
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Register the branch at https://launchpad.net/products/bzr/+addbranch
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#. Make a local branch for preparing this release. (Only for the first
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release in a series, otherwise you should already have a branch.) ::
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submit_to = bazaar@lists.canonical.com
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#. In the release branch, update ``version_info`` in
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``./bzrlib/__init__.py``.
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(This must match ``_script_version`` in the ``bzr`` script, but
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that is updated at the start of the release cycle, and
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doesn't need to say if it's an rc or final release.)
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Run this command and check the output::
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#. Add the date and release number to ``./NEWS``, and a one-paragraph
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summary of changes in this release.
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``./bzrlib/__init__.py``. Check the output of ``bzr --version``.
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#. Add the date and release number to ``./NEWS``
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#. Summarize into one or two paragraphs what's new in this release.
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#. Commit these changes to the release branch, using a command like::
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#. Link from http://bazaar-vcs.org/Download to the tarball and signature.
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#. Update http://doc.bazaar-vcs.org/ to have a directory of documentation
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for this release. (Controlled by the ``update-bzr-docs`` script on
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escudero, and also update the ``latest`` symlink in
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``/srv/bazaar.canonical.com/doc/``.)
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#. Announce on the `Bazaar home page <http://bazaar-vcs.org/>`_.
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#. Announce on the `Bazaar home page`__.
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__ http://bazaar-vcs.org/
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#. Check that the documentation for this release is available in
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<http://doc.bazaar-vcs.org>. It should be automatically build when the
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branch is created, by a cron script ``update-bzr-docs`` on
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Announcing the release
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Now that the release is publicly available, tell people about it.
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#. Announce to ``bazaar-announce`` and ``bazaar`` mailing lists.
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#. Make an announcement mail.
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For release candidates, this is sent to the ``bazaar-announce`` and
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``bazaar`` lists. For final releases, it should also be cc'd to
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``info-gnu@gnu.org``, ``python-announce-list@python.org``,
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``bug-directory@gnu.org``.
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The announce mail will look something like this:
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| Subject: bzr 0.11 release candidate 1
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| INTRO HERE. Mention the release number and date, and why the release. (i.e. release candidate for testing, final release of a version, backport/bugfix etc).
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| http://bazaar-vcs.org/releases/src/bzr-VERSION.tar.gz
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| http://bazaar-vcs.org/releases/src/bzr-VERSION.tar.gz.sig
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| DESCRIBE-CHANGES-IN-OVERVIEW-HERE
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| DESCRIBE-when the next release will be (if there is another - i.e. this is a release candidate)
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| Many thanks to all the contributors to this release! I've included the
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| contents of NEWS for VERSION below:
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To generate the data from NEWS, just copy and paste the relevant news section and clean it up as appropriate. The main clean-up task is to confirm that all major changes are indeed covered. This can be done by running ``bzr log`` back to the point when the branch was opened and cross checking the changes against the NEWS entries.
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(RC announcements should remind plugin maintainers to update their plugins.)
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* For point releases (i.e. a release candidate, or an incremental fix
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to a released version) take everything in the relevant NEWS section. For
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example, for 0.11rc2 take everything in NEWS from the bzr 0.11rc2 line to the bzr 0.11rc1 line further down.
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* For major releases (i.e. 0.11, 0.12 etc), take all the combined NEWS sections from within that version: for 0.11 take all of the 0.11 specific section, plus 0.11rc2, plus 0.11rc1 etc.
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| Subject: bzr x.yy released!
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| <<Summary paragraph from news>>
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| Thanks to everyone who contributed patches, suggestions, and
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| bzr x.yy is now available for download from
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| http://bazaar-vcs.org/Download as a source tarball; packages
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| for various systems will be available soon.
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| <<NEWS section from this release back to the last major release>>
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#. Update the IRC channel topic. Use the ``/topic`` command to do this, ensuring the new topic text keeps the project name, web site link, etc.