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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-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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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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#. 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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To start a new release cycle:
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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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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).
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``~/.bazaar/locations.conf``::
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[/home/mbp/bzr/prepare-x.y]
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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_to = bazaar@lists.canonical.com
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smtp_server = mail.example.com:25
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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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#. 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', 1)
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For release candidates use::
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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 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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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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+This release includes many bug fixes and a few performance and feature
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+improvements. ``bzr rm`` will now scan for missing files and remove them,
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+like how ``bzr add`` scans for unknown files and adds them. A bit more
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+polish has been applied to the stacking code. The b-tree indexing code has
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+been brought in, with an eye on using it in a future repository format.
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+There are only minor installer changes since bzr-1.7rc2.
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bzr 1.7rc2 2008-09-17
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---------------------
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=== modified file 'bzrlib/__init__.py'
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--- bzrlib/__init__.py 2008-09-16 21:39:28 +0000
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+++ bzrlib/__init__.py 2008-09-23 16:14:54 +0000
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# Python version 2.0 is (2, 0, 0, 'final', 0)." Additionally we use a
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# releaselevel of 'dev' for unreleased under-development code.
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-version_info = (1, 7, 0, 'candidate', 2)
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+version_info = (1, 7, 0, 'final', 0)
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# API compatibility version: bzrlib is currently API compatible with 1.7.
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#. Tag the new release::
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#. Push those changes to a bzr reposistory that is public and accessible on
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the Internet. PQM will pull from this repository when it attempts to merge
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your changes. Then submit those changes to PQM for merge into the
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appropriate release branch::
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bzr pqm-submit -m "(mbp) prepare 1.14"
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#. When PQM succeeds, pull down the master release branch.
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Making the source tarball
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-------------------------
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#. Change into the source directory and run ::
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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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Publishing the source tarball
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-----------------------------
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#. Go to the relevant milestone page in Launchpad.
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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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----------------------------
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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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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
228
available to the world.
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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-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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Announcing the release
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----------------------
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Now that the release is publicly available, tell people about it.
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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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The announce mail will look something like this::
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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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release of the bzr adaptive version control system.
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Bazaar is part of the GNU system <http://gnu.org/>.
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Thanks to everyone who contributed patches, suggestions, and
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Bazaar 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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Feel free to tweak this to your taste.
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#. Make an announcement through <https://launchpad.net/bzr/+announce>
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#. Update the IRC channel topic. Use the ``/topic`` command to do this,
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ensuring the new topic text keeps the project name, web site link, etc.
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#. Announce on http://freshmeat.net/projects/bzr/
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This should be done for beta releases, release candidates and final
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releases. If you do not have a Freshmeat account yet, ask one of the
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#. Update `<http://en.wikipedia.org/wiki/Bazaar_(software)>`_ -- this should
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be done for final releases but not for beta releases or Release Candidates.
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#. Update the python package index: <http://pypi.python.org/pypi/bzr> - best
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python setup.py register
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Remember to check the results afterwards.
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To be able to register the release you must create an account on
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<http://pypi.python.org/pypi> and have one of the existing owners of
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the project add you to the group.
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Merging the released code back to trunk
319
---------------------------------------
321
Merge the release branch back into the trunk. Check that changes in NEWS
322
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
324
back into pqm for bzr.dev.
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As soon as you change the version number in trunk, make sure you have
327
created the corresponding milestone to ensure the continuity in bug
328
targeting or nominating. Depending on the change, you may even have to
329
create a new series (if your change the major or minor release number), in
330
that case go to `Starting a cycle` and follow the instructions from there.
332
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
336
Releases until the final one
337
----------------------------
339
Congratulations - you have made your first release. Have a beer
340
or fruit juice - it's on the house! If it was a beta, or
341
candidate, you're not finished yet. Another beta or candidate or
342
hopefully a final release is still to come.
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The process is the same as for the first release. Goto `Starting the
345
release phase`_ and follow the instructions again. Some details change
346
between beta, candidate and final releases, but they should be
347
documented. If the instructions aren't clear enough, please fix them.
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* `Packaging into the bzr PPA <ppa.html>`_ to make and publish Ubuntu
355
* `Bazaar Developer Document Catalog <index.html>`_
356
* `Development cycles <cycle.html>`_: things that happen during the cycle
357
before the actual release.
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added
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doc/developers/releasing.txt
