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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. This is just one phase of the
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`overall development cycle <http://doc.bazaar.canonical.com/developers/cycle.html>`_,
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but it's the most complex part. This document gives a checklist you can
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follow from start to end in one go.
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If you're helping the Release Manager (RM) for one reason or another, you
11
may notice that he didn't follow that document scrupulously. He may have
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good reasons to do that but he may also have missed some parts.
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Follow the document yourself and don't hesitate to create the missing
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milestones for example (we tend to forget these ones a lot).
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release, and managing the release process. This is just one phase of the
6
`overall development cycle <cycle.html>`_, but it's the most complex part.
7
This document gives a checklist you can follow from start to end in one
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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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#. 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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bzr branch trunk prepare-1.14
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#. Download the pqm plugin and install it into your ``~/.bazaar/plugins``::
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bzr branch lp:bzr-pqm ~/.bazaar/plugins/pqm
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At the start of a release cycle
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===============================
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To start a new release cycle:
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#. If this is the first release for a given *x.y* then create a new
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series at <https://launchpad.net/bzr/+addseries>. There is one series
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for every *x.y* release.
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#. If you made a new series, create a new pqm-controlled branch for this
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release series, by asking a Canonical sysadmin. This branch means that
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from the first release beta or candidate onwards, general development
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continues on the trunk, and only specifically-targeted fixes go into
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#. If you made a new series, add milestones at
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<https://edge.launchpad.net/bzr/x.y/+addmilestone> to that series for
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the beta release, release candidate and the final release, and their
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#. Create a new milestone <https://edge.launchpad.net/bzr/x.y/+addmilestone>
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and add information about this release. We will not use it yet, but it
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will be available for targeting or nominating bugs.
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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 targeted 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. This is called the metronome mail
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and is described in `Development cycles <cycle.html>`_.
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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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bzr branch trunk prepare-1.14
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#. Configure pqm-submit for this branch, with a section like this (where
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x.y is the version to release). **Or use hydrazine for easy use**
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#. Configure pqm-submit for this branch, with a section like this in
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``~/.bazaar/locations.conf``::
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[/home/mbp/bzr/prepare-x.y]
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[/home/mbp/bzr/prepare-1.14]
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pqm_email = Canonical PQM <pqm@bazaar-vcs.org>
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submit_branch = http://bazaar.launchpad.net/~bzr-pqm/bzr/x.y
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parent_branch = http://bazaar.launchpad.net/~bzr-pqm/bzr/x.y
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public_branch = http://bazaar.example.com/prepare-x.y
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submit_branch = http://bazaar-vcs.org/bzr/bzr.1.14
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public_branch = http://bazaar.your-domain.com/bzr
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submit_to = bazaar@lists.canonical.com
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smtp_server = mail.example.com:25
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smtp_server = mail.your-domain.com:25
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Please see <http://doc.bazaar.canonical.com/developers/HACKING.html#an-overview-of-pqm>
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Please see <http://doc.bazaar-vcs.org/latest/developers/HACKING.html#an-overview-of-pqm>
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for more details on PQM
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#. Update the version number in the ``bzr`` script, and the
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``bzrlib/__init__.py`` file::
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version_info = (x, y, z, 'dev', 0)
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#. Add a new section at the top of ``NEWS`` about the new release,
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including its version number and the headings from
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``NEWS-template.txt``.
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#. Update the "What's New" documents in ``doc/en/whats-new``.
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#. Commit this and send it to PQM.
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Doing a particular release
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==========================
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Update the source code
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----------------------
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#. Check that there is a milestone for the release you're doing. If there
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is no milestone it indicates a process problem - make the milestone but
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also mail the list to raise this issue in our process. Milestones are
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found at <https://launchpad.net/bzr/+milestone/x.y.z>.
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#. In the release branch, update ``version_info`` in ``./bzrlib/__init__.py``.
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Make sure the corresponding milestone exists.
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Double check that ./bzr ``_script_version`` matches ``version_info``. Check
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the output of ``bzr --version``.
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For beta releases use::
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version_info = (2, 1, 0, 'beta', SERIAL)
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version_info = (2, 1, 0, 'beta', 1)
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For release candidates use::
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version_info = (2, 0, 1, 'candidate', SERIAL)
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For stable releases use::
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version_info = (2, 1, 2, 'final', 0)
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#. Update the ``./NEWS`` section for this release.
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Fill out the date and a description of the release under the existing
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header. If there isn't one, follow the above for using the NEWS
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See *2.1.1* or similar for an example of what this looks like.
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#. Add a summary of the release into the "What's New" document.
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the output of ``bzr --version``.
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#. Add the date and release number to ``./NEWS``
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#. To check that all bugs mentioned in ``./NEWS`` are actually marked as
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closed in Launchpad, you can run ``tools/check-newsbugs.py``::
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./tools/check-newsbugs.py NEWS
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(But note there will be many false positives, and this script may be
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flaky <https://bugs.edge.launchpad.net/bzr/+bug/354985>. Don't let
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this slow you down too much.)
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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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bzr commit -m "Release 1.14."
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bzr commit -m "Release 1.14."
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The diff before you commit will be something like::
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=== modified file 'NEWS'
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--- NEWS 2008-09-17 23:09:18 +0000
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+++ NEWS 2008-09-23 16:14:54 +0000
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+bzr 1.7 2008-09-23
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+------------------
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-------------------------
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#. Change into the source directory and run ::
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This also makes a zip file, which is easier to access on Microsoft
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#. Now we'll try expanding this tarball and running the test suite
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to check for packaging problems::
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make check-dist-tarball
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You may encounter failures while running the test suite caused
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by your locally installed plugins. Use your own judgment to
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decide if you can release with these failures. When in doubt,
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disable the faulty plugins one by one until you get no more
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Remember that PQM has just tested everything too, this step is
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particularly testing that the pyrex extensions, which are updated
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by your local pyrex version when you run make dist, are in good
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Publishing the source tarball
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-----------------------------
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#. Go to the relevant milestone page in Launchpad.
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#. Create a release of the milestone, and upload the source tarball and
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the GPG signature. Or, if you prefer, use the
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``tools/packaging/lp-upload-release`` script to do this. Note that
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this changes what the download widget on the Launchpad bzr home
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page shows, so don't stop the release process yet, or platform binary
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installers won't be made and the download list will stay very small!
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<https://bugs.edge.launchpad.net/launchpad/+bug/586445>
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Announcing the source freeze
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----------------------------
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#. Post to the ``bazaar`` list, saying that the source has been frozen.
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This is the cue for platform maintainers and plugin authors to update
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their code. This is done before the general public announcement of the
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Kick off the next cycle
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-----------------------
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#. To let developers work on the next release, do
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`At the start of a release cycle` now.
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#. Pause for a few days.
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Publishing the release
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----------------------
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There is normally a delay of a few days after the source freeze to allow
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for binaries to be built on various platforms. Once they have been built,
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we have a releasable product. The next step is to make it generally
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Now you have the releasable product. The next step is making it
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available to the world.
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#. Go to the release web page at <https://launchpad.net/bzr/x.y/x.y.z>
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#. Announce on the `Bazaar website <http://bazaar.canonical.com/>`_.
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This page is edited via the lp:bzr-website branch. (Changes
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pushed to this branch are refreshed by a cron job on escudero.)
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#. Check that the documentation for this release is available in
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<http://doc.bazaar.canonical.com>. It should be automatically build when the
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#. In <https://launchpad.net/bzr/> click the "Release series" for this
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series, to take you to e.g. <https://launchpad.net/bzr/1.14>. Then
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click "Register a release", and add information about this release.
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#. Within that release, upload the source tarball and zipfile and the GPG
134
signature. Or, if you prefer, use the
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``tools/packaging/lp-upload-release`` script to do this.
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#. Link from http://bazaar-vcs.org/Download to the tarball and signature.
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#. Announce on the `Bazaar home page <http://bazaar-vcs.org/>`_.
141
#. 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
275
143
branch is created, by a cron script ``update-bzr-docs`` on
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``escudero``. As of today (2009-08-27) ``igc`` manually updates the
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pretty version of it.
280
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Announcing the release
285
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#. Make an announcement mail.
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For release candidates or beta releases, this is sent to the ``bazaar``
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list only to inform plugin authors and package or installer managers.
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Once the installers are available, the mail can be sent to the
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``bazaar-announce`` list too.
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For final releases, it should also be cc'd to ``info-gnu@gnu.org``,
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``python-announce-list@python.org``, ``bug-directory@gnu.org``.
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In all cases, it is good to set ``Reply-To: bazaar@lists.canonical.com``,
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so that people who reply to the announcement don't spam other lists.
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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``. In both cases, it is good to set
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``Reply-To: bazaar@lists.canonical.com``, so that people who reply to
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the announcement don't spam other lists.
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The announce mail will look something like this::
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Subject: bzr x.y.z released!
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Subject: bzr x.yy released!
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<<Summary paragraph from news>>
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The Bazaar team is happy to announce availability of a new
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The Bazaar team is happy to announce availability of a new
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168
release of the bzr adaptive version control system.
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169
Bazaar is part of the GNU system <http://gnu.org/>.
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171
Thanks to everyone who contributed patches, suggestions, and
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Bazaar is now available for download from
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https://launchpad.net/bzr/2.x/2.x/ as a source tarball; packages
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Bazaar is now available for download from
175
http://bazaar-vcs.org/Download as a source tarball; packages
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176
for various systems will be available soon.
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178
<<NEWS section from this release back to the last major release>>
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180
Feel free to tweak this to your taste.
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208
Merging the released code back to trunk
347
209
---------------------------------------
349
The rule is to keep ``NEWS`` sections sorted by date. You'll need to
350
review the merge and make sure that that is respected.
352
211
Merge the release branch back into the trunk. Check that changes in NEWS
353
212
were merged into the right sections. If it's not already done, advance
354
213
the version number in ``bzr`` and ``bzrlib/__init__.py``. Submit this
355
214
back into pqm for bzr.dev.
357
As soon as you change the version number in trunk, make sure you have
358
created the corresponding milestone to ensure the continuity in bug
359
targeting or nominating. Depending on the change, you may even have to
360
create a new series (if your change the major or minor release number), in
361
that case go to `At the start of a release cycle` and follow the instructions from there.
363
216
You should also merge (not pull) the release branch into
364
217
``lp:~bzr/bzr/current``, so that branch contains the current released code
367
Releases until the final one
368
----------------------------
370
Congratulations - you have made your first release. Have a beer
371
or fruit juice - it's on the house! If it was a beta, or
372
candidate, you're not finished yet. Another beta or candidate or
373
hopefully a final release is still to come.
375
The process is the same as for the first release. Goto `Doing a
376
particular release`_ and follow the instructions again. Some details change
377
between beta, candidate and final releases, but they should be
378
documented. If the instructions aren't clear enough, please fix them.
added
removed
doc/developers/releasing.txt
