4
4
This document describes the processes for making and announcing a Bazaar
5
release, and managing the release process. This is just one phase of the
6
`overall development cycle
7
<http://doc.bazaar.canonical.com/developers/cycle.html>`_, (go re-read this
8
document to ensure it hasn't been updated since you last read it) but it's
11
If you're doing your first release you can follow this document and read
12
each step explanation. It's also a good practice to read it for any release
13
to ensure you don't miss a step and to update it as the release process
5
release, and managing the release process. This is just one phase of
6
the `overall development cycle
7
<http://doc.bazaar.canonical.com/developers/cycle.html>`_, (go re-read
8
this document to ensure it hasn't been updated) but it's the most
9
complex part. This document gives a checklist you can follow from start
16
12
If you're helping the Release Manager (RM) for one reason or another, you
17
13
may notice that he didn't follow that document scrupulously. He may have
18
14
good reasons to do that but he may also have missed some parts.
16
Follow the document yourself and don't hesitate to create the missing
17
milestones for example (we tend to forget these ones a lot).
26
#. PQM access rights (or you won't be able to land any change)
28
25
#. Download the pqm plugin and install it into your ``~/.bazaar/plugins``::
30
27
bzr branch lp:bzr-pqm ~/.bazaar/plugins/pqm
32
#. Alternatively, you can download and install ``lp:hydrazine`` (the main
33
difference is that hydrazine requires the branch to land to be hosted on
39
In this document, we're talking about source releases only, packages and
40
installers are built from this but we won't talk about them here.
42
Every release is part of a series, ``bzr-2.4.1`` is part of series ``2.4``.
44
We do two different kind of releases: the betas releases and the stable
45
releases for a given series.
47
For a given series, releases will be done to deliver new versions of bzr to
48
different kinds of users:
50
#. beta releases: named ``x.ybn`` where ``x.y`` is the series and ``n``
51
starts at 1 and is incremented. These releases are targeted to beta
52
testers who don't want to run from source but are interested in features
55
#. stable releases: name ``x.y.z`` where ``x.y.`` is the series and ``z``
56
starts at 1 and is incremented. These releases are targeted at people
57
that want bugfixes only and no new features.
60
Differences in the release process between beta and stable release will be
61
mentioned when needed.
63
30
When do we relase ?
64
31
===================
66
As of July 2011, we maintain four series (and one that is about to be EOLed).
67
Concurrently releasing them all at the same time makes it harder to shorten
68
the delay between the source availability and the package building longer
69
than necessary (we delay the official announcement until most of our users
70
can install the new release).
33
As of October 2010, we mantain four series. Concurrently releasing them
34
all at the same time makes it harder to shorten the delay between the
35
source availability and the package building longer than necessary (we
36
delay the official announcement until most of our users can install the new
72
39
In order to continue to do time-based releases, we need to plan the
73
40
releases by series to minimize the collisions. In the end, it's the Release
74
41
Manager call to decide whether he prefers to do all releases at once
75
42
though, so the rules presented here are a conservative approach.
77
We want to respect the following rules:
79
#. as much as possible releases should not disturb development, and
80
ongoing development should not disturb releases,
82
#. the most recent development series should release once a month during
83
the beta period (see `Development cycles <cycle.html>`_ for more
86
#. the most recent stable series should release every other month (based
87
on the amount of bug fixes, this can be shorter or longer depending on
90
#. previous series should release on a regular basis without interfering
91
with the most recent series with a decreasing order of priority (again
92
this should be based on bugs importance and user feedback),
94
#. the death of a series should be planned ahead of time. 6 months should
95
give enough time to our users to migrate to a more recent series. This
96
doesn't mean we will make a release at the end of the series, just that
97
before the end date we *could* possibly put out another release if
98
there was a sufficiently important fix. Beyond that date, we won't
99
even land changes on that branch (unless something causes a miraculous
102
#. there should not be more than 2 releases in the same week (but the
103
Release Manager is free to ignore this (get in touch with packagers
106
#. the series are aligned with Ubuntu releases for convenience since we
107
create a new series every 6 months. This means that we support the
108
stable series for 18 months. Note that we also propose the most recent
109
stable series via the stable PPA but that the SRU processs allow us to
110
reach a wider audience.
112
At the start of a series cycle
113
==============================
115
To start a new series cycle:
117
#. Create a new series ``x.y`` at <https://launchpad.net/bzr/+addseries>.
119
#. Add milestones at <https://launchpad.net/bzr/x.y/+addmilestone> to that
120
series for the beta releases and the stable series mentioning their
121
expected dates. Only the milestone associated to the next release in
122
this series should be left active to avoid clutter when targeting bugs.
124
#. If you made a new series, you will need to create a new pqm-controlled
125
branch for this release series. This branch will be used only from the
126
first non-beta release onwards. It needs to be created by a Canonical
127
sysadmin (ask the core devs for instructions or to do it for you).
129
#. Start a new release-notes file::
131
cd doc/en/release-notes
132
cp series-template.txt bzr-x.y.txt # e.g. bzr-2.3.txt
135
#. Start a new whats-new file::
138
cp template.txt bzr-x.y.txt # e.g. bzr-2.6.txt
44
We want to respect the following rules::
46
#. as much as possible releases should not disturb development, and
47
ongoing development should not disturb releases,
49
#. the most recent development series should release once a month during
50
the beta period (see `Development cycles <cycle.html>`_ for more
53
#. the most recent stable series should release every other month (based
54
on the amount of bug fixes, this can be shorter or longer depending on
57
#. previous series should relesase on a regular basis without interfering
58
with the most recent series with a decreasing order of priority (again
59
this should be based on bugs importance and user feedback),
61
#. the death of a series should be planned ahead of time. 6 months should
62
give enough time to our users to migrate to a more recent series. This
63
doesn't mean we will make a release at the end of the series, just that
64
before the end date we _could_ possibly put out another release if
65
there was a sufficiently important fix. Beyond that date, we won't
66
even land changes on that branch (unless something causes a miraculous
69
#. there should not be more than 2 releases in the same week (but the
70
Release Manager is free to ignore this (get in touch with packagers
73
#. the series are aligned with Ubuntu releases for convenience since we
74
create a new series every 6 months. This means that we support the
75
stable series for 18 months. Note that we also propose the most recent
76
stable series via the ppa, so whether we keep supporting LTS directly
77
or via the ppa is still an open question.
142
80
At the start of a release cycle
145
83
To start a new release cycle:
85
#. If this is the first release for a given *x.y* then create a new
86
series at <https://launchpad.net/bzr/+addseries>. There is one series
87
for every *x.y* release.
89
#. If you made a new series, create a new pqm-controlled branch for this
90
release series, by asking a Canonical sysadmin. This branch means that
91
from the first release beta or candidate onwards, general development
92
continues on the trunk, and only specifically-targeted fixes go into
95
#. If you made a new series, add milestones at
96
<https://launchpad.net/bzr/x.y/+addmilestone> to that series for
97
the beta release, release candidate and the final release, and their
100
#. Create a new milestone <https://launchpad.net/bzr/x.y/+addmilestone>
101
and add information about this release. We will not use it yet, but it
102
will be available for targeting or nominating bugs.
147
104
#. Send mail to the list with the key dates, who will be the release
148
105
manager, and the main themes or targeted bugs. Ask people to nominate
149
106
objectives, or point out any high-risk things that are best done early,
150
107
or that interact with other changes. This is called the metronome mail
151
108
and is described in `Development cycles <cycle.html>`_.
153
#. Make a local branch to prepare the release::
155
bzr branch lp:bzr/x.y x.y-dev
157
If you're doing your first beta release, branch from trunk::
159
bzr branch lp:bzr x.y-dev
161
Note that you will generally reuse the same branch for all releases in a
110
#. Make a local branch for preparing this release. (Only for the first
111
release in a series, otherwise you should already have a branch.) ::
113
bzr branch trunk prepare-1.14
164
115
#. Configure pqm-submit for this branch, with a section like this (where
165
``x.y`` is the series for your release). **Or use hydrazine for easier
166
setup** ``~/.bazaar/locations.conf``::
116
x.y is the version to release). **Or use hydrazine for easy use**
117
``~/.bazaar/locations.conf``::
168
[/home/mbp/bzr/x.y-dev]
119
[/home/mbp/bzr/prepare-x.y]
169
120
pqm_email = Canonical PQM <pqm@bazaar-vcs.org>
170
121
submit_branch = http://bazaar.launchpad.net/~bzr-pqm/bzr/x.y
171
122
parent_branch = http://bazaar.launchpad.net/~bzr-pqm/bzr/x.y
172
public_branch = http://bazaar.example.com/x.y-dev
123
public_branch = http://bazaar.example.com/prepare-x.y
173
124
submit_to = bazaar@lists.canonical.com
174
125
smtp_server = mail.example.com:25
206
158
also mail the list to raise this issue in our process. Milestones are
207
159
found at <https://launchpad.net/bzr/+milestone/x.y.z>.
209
#. Merge into your branch all previous stable series fixes that haven't been
210
merged yet. For example, if you're releasing 2.5.x, make sure the fixes
211
on 2.4, 2.3, etc have already been merged up::
215
and commit that merge in its own commit. This should happen only if the
216
devs landing changes in previous releases forgot to merge them up. Since
217
this can slow down the freeze, feel free to gently remind them about
218
their duties ;) If you feel unsafe resolving the conflicts or it's too
219
time consuming, contact the related devs and skip this merge.
221
161
#. In the release branch, update ``version_info`` in ``./bzrlib/__init__.py``.
222
162
Make sure the corresponding milestone exists.
223
163
Double check that ./bzr ``_script_version`` matches ``version_info``. Check
224
the output of ``./bzr --version``.
164
the output of ``bzr --version``.
226
166
For beta releases use::
228
version_info = (2, 5, 0, 'beta', SERIAL)
232
version_info = (2, 5, 0, 'beta', 5)
168
version_info = (2, 1, 0, 'beta', SERIAL)
172
version_info = (2, 1, 0, 'beta', 1)
174
For release candidates use::
176
version_info = (2, 0, 1, 'candidate', SERIAL)
234
178
For stable releases use::
236
version_info = (2, 5, 0, 'final', 0)
180
version_info = (2, 1, 2, 'final', 0)
238
182
#. Update the ``./doc/en/release-notes/`` section for this release.
240
Check that all news entries related to this release have been added in
241
the right section. For example, if you're releasing 2.5b5, the following
242
command should display a a single chuk diff for the 2.5b5 release::
244
bzr diff -rbzr-2.5b4.. doc/en/release-notes/bzr-2.5.txt
246
184
Fill out the date and a description of the release under the existing
247
header (the diff above will help you summarizing). If there isn't one,
248
follow the instructions above for using the ``release-template.txt`` file
249
and remind people that they should document their changes there ;)
251
See *2.5b5* or similar for an example of what this looks like.
253
#. Add or check the summary of the release into the "What's New" document.
185
header. If there isn't one, follow the instructions above for using the
186
``release-template.txt`` file.
188
See *2.1.1* or similar for an example of what this looks like.
190
#. Add a summary of the release into the "What's New" document.
255
192
#. To check that all bugs mentioned in the release notes are actually
256
193
marked as closed in Launchpad, you can run
422
331
<https://bugs.launchpad.net/launchpad/+bug/586445>
334
Announcing the source freeze
335
----------------------------
337
#. Post to the ``bazaar`` list, saying that the source has been frozen
338
(gone gold). Be extra clear that this is only a *source* release
339
targeted at packagers and installer builders (see
340
<https://bugs.launchpad.net/launchpad/+bug/645084>). This is the cue
341
for platform maintainers and plugin authors to update their code. This
342
is done before the general public announcement of the release.
425
345
Kick off the next cycle
426
346
-----------------------
428
From that point, there is no possible return, the tarball has been uploaded
429
so you can relax a bit.
431
You're still holding a "social" lock on the launchpad branch though. Until
432
your start the next cycle, nobody should land anything on this branch. If
433
they do, they either targeted the wrong branch or didn't update the news
434
file correctly, so the sooner the branch is opened again, the better.
436
This matters more for ``lp:bzr`` than for ``lp:bzr/x.y``, ``lp:bzr`` should
437
always be open for landing, so you should do `At the start of a release
438
cycle`_ as soon as possible (i.e. update the version number in ``bzr`` and
439
``bzrlib/__init__``, create/update the news files and create/update the
440
milestone for the next relase).
442
You may also need to do `At the start of a series cycle`_ if you're starting
445
The final beta - branching and translations
446
-------------------------------------------
448
A word of caution: the instructions above works well for all releases but
449
there is one special case that requires a bit more care: when you release
450
the *last* beta for a given ``x.y`` series (from trunk aka lp:bzr), you need
451
to setup *two* branches for the next cycle:
453
#. ``lp:bzr`` needs to be opened for the next *series* ``x.(y+1)``.
455
#. ``lp:bzr/x.y`` needs to be opened for the next *release* ``x.y.0`` in the
456
series. Since this is first real use of ``lp:bzr/x.y``, this is also the
457
deadline for the PQM branch to be created.
459
Both are important as ``lp:bzr`` should remain open so any change can be
460
landed, ``lp:bzr/x.y`` on the other hand should be ready to receive bug
463
``lp:bzr`` is generally more important as the bug fixes on ``lp:bzr/x.y``
464
won't be released sooner than a month from now whereas people may already
465
been waiting to land on ``lp:bzr``.
469
#. Open ``lp:bzr`` for ``x.(y+1)``
471
#. Create or update the ``x.y`` PQM branch based on whatever revision you
472
want to release. Since it takes time to create the PQM branch for the new
473
series you should plan to get it created a few days before you need it
474
and seed it with the revision from trunk you want to base your release of
475
(ask a LOSA for pulling this revision from trunk and pushing it to the
476
series branch (``lp:bzr/x.y``) when you're ready).
478
#. Release ``x.y.0`` from ``lp:bzr/x.y``
480
#. Open ``lp:bzr/x.y`` for bug fixes
482
You also need to ensure Launchpad is set up to import/export translations
483
for the new branch and inform translators.
485
#. Push the last beta release to a new branch::
487
bzr push lp:~bzr-core/bzr/bzr-translations-export-x.y
489
#. On the translations series synchronization settings page
490
<https://translations.launchpad.net/bzr/x.y/+translations-settings>
491
turn on ``Import template files`` then for exports click ``Choose a
492
target branch`` and point it at the branch you just pushed.
494
#. E-mail translators to announce that the forthcoming stable release of bzr
495
is ready for translations. Send to
496
``launchpad-translators@lists.launchpad.net`` and
497
``ubuntu-translators@lists.ubuntu.com``.
499
#. The series is now frozen for strings and API, see below for adding
500
that to the announcement.
502
Announcing the source freeze
503
----------------------------
505
#. Post to the ``bazaar@lists.canonical.com`` and
506
``bzr-packagers@list.launchpad.net`` lists, saying that the source has
507
been frozen. Be extra clear that this is only a *source* release targeted
508
at packagers and installer builders (see
509
<https://bugs.launchpad.net/launchpad/+bug/645084>). This is the cue for
510
platform maintainers and plugin authors to update their code. This is
511
done before the general public announcement of the release.
513
The freeze announcement generally guess the date of the official public
514
announcement, for the most recent stable series (the one supported by the
515
installers and most of the distributions) it's generally a few days after
516
the freeze. For older series supported only via SRUs for Ubuntu, we don't
517
control the process as tightly so guessing the date is not appropriate.
519
For the final beta release include in your announcement a notice of
520
API and translation freezes nothing that public methods should not
521
be removed or changed and strings should not be added or changed.
523
#. Pause for a few days.
348
#. To let developers work on the next release, do
349
`At the start of a release cycle` now.
351
#. Pause for a few days.
526
354
Publishing the release
604
432
``Links`` box are edited. This should rarely change except for the URLs
605
433
related to the latest stable release.
607
* New announcement: When doing a release, put the summary of the release
608
(you can't embed URLs there, the moderation staff remove them). Users
609
can still access the releases notes via the ``Release Notes`` URL in
610
the ``Links`` box in the upper right area of the page. When doing the
611
first stable release in a series, delete the ``Unstable installers``
612
<https://launchpad.net/bzr/x.y/x.ybn> and ``Unstable source tarball``
435
* New announcement: When doing a release (beta, candidates, final), put the
436
summary of the release (you can't embed URLs there, the moderation staff
437
remove them). Users can still access the releases notes via the ``Release
438
Notes`` URL in the ``Links`` box in the upper right area of the
439
page. When doing the first stable release in a series, delete the
440
``Unstable installers`` <https://launchpad.net/bzr/x.y/x.ybn> and
441
``Unstable source tarball``
613
442
<http://launchpad.net/bzr/x.y/x.ybn/+download/bzr-x.ybn.tar.gz>
614
links. Conversely, when creating the first beta in a development
615
series, create these links again. Check all links when doing other
443
links. Conversely, when creating the first beta in a development series,
444
create these links again. Check all links when doing other kinds of
618
447
* Set direct download: When releasing a new stable release, this should
619
448
point to the corresponding launchpad page:
620
449
<https://launchpad.net/bzr/x.y/x.y.z/>
622
451
#. Update `<http://en.wikipedia.org/wiki/Bazaar_(software)>`_ -- this should
623
be done for the stable and beta releases.
452
be done for final releases but not for beta releases or Release Candidates.
625
454
#. Update the python package index: <http://pypi.python.org/pypi/bzr> - best
626
455
done by running ::
628
457
python setup.py register
630
Remember to check the results afterward -- this should be done for
631
stable releases but not for beta releases nor SRUs.
459
Remember to check the results afterwards -- this should be done for
460
final releases but not for beta releases or Release Candidates.
633
462
To be able to register the release you must create an account on
634
463
<http://pypi.python.org/pypi> and have one of the existing owners of
649
479
created the corresponding milestone to ensure the continuity in bug
650
480
targeting or nominating. Depending on the change, you may even have to
651
481
create a new series (if your change the major or minor release number), in
652
that case go to `At the start of a series cycle`_ and follow the
653
instructions from there.
482
that case go to `At the start of a release cycle` and follow the instructions from there.
484
You should also merge (not pull) the release branch into
485
``lp:~bzr/bzr/current``, so that branch contains the current released code
656
488
Releases until the final one
657
489
----------------------------
659
Congratulations - you have made your first release. Have a beer or fruit
660
juice - it's on the house! If it was a beta, you're not finished
661
yet. Another beta or hopefully a stable release is still to come.
491
Congratulations - you have made your first release. Have a beer
492
or fruit juice - it's on the house! If it was a beta, or
493
candidate, you're not finished yet. Another beta or candidate or
494
hopefully a final release is still to come.
663
The process is the same as for the first release. Goto `Doing a particular
664
release`_ and follow the instructions again. Some details change between
665
beta and stable releases, but they should be documented. If the instructions
666
aren't clear enough, please fix them.
496
The process is the same as for the first release. Goto `Doing a
497
particular release`_ and follow the instructions again. Some details change
498
between beta, candidate and final releases, but they should be
499
documented. If the instructions aren't clear enough, please fix them.
669
502
Getting the release into Ubuntu
added
removed
doc/developers/releasing.txt
