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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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`overall development cycle <http://doc.bazaar-vcs.org/developers/cycle.html>`_,
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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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If you're helping the Release Manager (RM) for one reason or another, you
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may notice that he didn't follow that document scrupulously. He may have
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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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#. Create a new series at <https://launchpad.net/bzr/+addseries>. There is one
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series for every *x.y* release.
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#. Go to the series web page at <https://launchpad.net/bzr/x.y>
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#. Create a new release at
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<https://launchpad.net/bzr/x.y/+addrelease> and add
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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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#. We create a new pqm-controlled branch for this release series, by
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asking a Canonical sysadmin.
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This branch means that from the first release beta or candidate onwards,
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general development continues on the trunk, and only
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specifically-targeted fixes go into the release branch.
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#. Add milestones at <https://edge.launchpad.net/bzr/x.y/+addmilestone> to
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that series for the beta release, release candidate and the final release,
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and their expected dates.
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#. Update the version number in the ``bzr`` script, and the
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``bzrlib/__init__.py`` file. Make sure there is always a corresponding
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milestone when you change that version number.
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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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#. 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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submit_to = bazaar@lists.canonical.com
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smtp_server = mail.example.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/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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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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version_info = (2, 0, 1, 'candidate', 1)
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Starting the release phase
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--------------------------
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#. Create a new milestone at <https://launchpad.net/bzr/x.y/+addmilestone>
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for the beta release or release candidate if you haven't already.
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#. Add the date and release number to ``./NEWS``
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Depending on whether you're doing a beta or a bugfix release, you'll
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have to create a NEWS section for your release in the right
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place. Most of the time, the new section is at the top of the file
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(look what have been done for the various 2.0x and 2.1.0bx releases).
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The rule is to keep the sections sorted by date. You'll need to be
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cautious when merging back to trunk to respect that.
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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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(But note there can be some 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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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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#. Within that release, upload the source tarball and the GPG
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signature. Or, if you prefer, use the
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``tools/packaging/lp-upload-release`` script to do this.
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Announcing the source freeze
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we have a releasable product. The next step is to make it generally
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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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#. Within that release, upload the source tarball and zipfile and the GPG
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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/SourceDownloads to the tarball and
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#. Announce on the `Bazaar website <http://bazaar-vcs.org/>`_.
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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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#. Announce on the `Bazaar wiki <http://bazaar-vcs.org/Welcome>`_.
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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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<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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``escudero``. As of today (2009-08-27) ``igc`` manually updates the
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pretty version of it.
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Merging the released code back to trunk
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---------------------------------------
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The rule is to keep ``NEWS`` sections sorted by date. You'll need to
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review the merge and make sure that that is respected.
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Merge the release branch back into the trunk. Check that changes in NEWS
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were merged into the right sections. If it's not already done, advance
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the version number in ``bzr`` and ``bzrlib/__init__.py``. Submit this
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created the corresponding milestone to ensure the continuity in bug
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targeting or nominating. Depending on the change, you may even have to
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create a new series (if your change the major or minor release number), in
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that case go to `At the start of a release cycle` and follow the instructions from there.
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that case go to `Starting a cycle` and follow the instructions from there.
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You should also merge (not pull) the release branch into
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``lp:~bzr/bzr/current``, so that branch contains the current released code
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candidate, you're not finished yet. Another beta or candidate or
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hopefully a final release is still to come.
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The process is the same as for the first release. Goto `Doing a
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particular release`_ and follow the instructions again. Some details change
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The process is the same as for the first release. Goto `Starting the
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release phase`_ and follow the instructions again. Some details change
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between beta, candidate and final releases, but they should be
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documented. If the instructions aren't clear enough, please fix them.
added
removed
doc/developers/releasing.txt
