mirror of https://github.com/ceph/ceph
261 lines
15 KiB
ReStructuredText
261 lines
15 KiB
ReStructuredText
=============
|
|
Ceph Releases
|
|
=============
|
|
|
|
Timeline
|
|
--------
|
|
|
|
+----------------------------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`Dumpling`_|`Emperor`_ |`Firefly`_ |`Giant`_ |`Hammer`_ |
|
|
| |LTS |Stable |LTS |Stable |LTS |
|
|
+----------------------------+-----------+-----------+-----------+-----------+-----------+
|
|
| First release | August | November | May | October | April |
|
|
| | 2013 | 2013 | 2014 | 2014 | 2015 |
|
|
+----------------------------+-----------+-----------+-----------+-----------+-----------+
|
|
| Estimated retirement | March | | January | | November |
|
|
| | 2015 | | 2016 | | 2016 |
|
|
+----------------------------+-----------+-----------+-----------+-----------+-----------+
|
|
| Actual retirement | May | May | | April | |
|
|
| | 2015 | 2014 | | 2015 | |
|
|
+----------------------------+-----------+-----------+-----------+-----------+-----------+
|
|
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |Development|`Dumpling`_|`Emperor`_ |`Firefly`_ |`Giant`_ |`Hammer`_ |
|
|
| |Testing |LTS |Stable |LTS |Stable |LTS |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| August 2015 |`9.0.3`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| July 2015 |`9.0.2`_ | | |`0.80.10`_ | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| June 2015 |`9.0.1`_ | | | | |`0.94.2`_ |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| May 2015 |`9.0.0`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| April 2015 | | | | |`0.87.2`_ |`0.94.1`_ |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | | | | | |`0.94`_ |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| March 2015 | | | |`0.80.9`_ | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| February 2015 |`0.93`_ | | | |`0.87.1`_ | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.92`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| January 2015 |`0.91`_ | | |`0.80.8`_ | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| December 2014 |`0.90`_ | | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.89`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| November 2014 |`0.88`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| October 2014 |`0.86`_ | | |`0.80.7`_ |`0.87`_ | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | | | |`0.80.6`_ | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| September 2014 |`0.85`_ |`0.67.11`_ | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| August 2014 |`0.84`_ |`0.67.10`_ | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| July 2014 |`0.83`_ | | |`0.80.5`_ | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | | | |`0.80.4`_ | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | | | |`0.80.3`_ | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | | | |`0.80.2`_ | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| June 2014 |`0.82`_ | | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.81`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| May 2014 | |`0.67.9`_ | |`0.80.1`_ | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | |`0.67.8`_ | |`0.80`_ | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| April 2014 |`0.79`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| March 2014 |`0.78`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| February 2014 |`0.77`_ |`0.67.7`_ | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | |`0.67.6`_ | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| January 2014 |`0.76`_ | | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.75`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| December 2013 |`0.74`_ |`0.67.5`_ |`0.72.2`_ | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.73`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| November 2013 | | |`0.72.1`_ | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | | |`0.72`_ | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| October 2013 |`0.71`_ |`0.67.4`_ | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.70`_ | | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| September 2013 |`0.69`_ | | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| |`0.68`_ |`0.67.3`_ | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| August 2013 | |`0.67.2`_ | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | |`0.67.1`_ | | | | |
|
|
| +-----------+-----------+-----------+-----------+-----------+-----------+
|
|
| | |`0.67`_ | | | | |
|
|
+----------------+-----------+-----------+-----------+-----------+-----------+-----------+
|
|
|
|
.. _9.0.2: ../release-notes#v9-0-2
|
|
.. _9.0.1: ../release-notes#v9-0-1
|
|
.. _9.0.0: ../release-notes#v9-0-0
|
|
|
|
.. _0.94.2: ../release-notes#v0-94-2-hammer
|
|
.. _0.94.1: ../release-notes#v0-94-1-hammer
|
|
.. _0.94: ../release-notes#v0-94-hammer
|
|
.. _Hammer: ../release-notes#v0-94-hammer
|
|
|
|
.. _0.93: ../release-notes#v0-93
|
|
.. _0.92: ../release-notes#v0-92
|
|
.. _0.91: ../release-notes#v0-91
|
|
.. _0.90: ../release-notes#v0-90
|
|
.. _0.89: ../release-notes#v0-89
|
|
.. _0.88: ../release-notes#v0-88
|
|
|
|
.. _0.87.2: ../release-notes#v0-87-2-giant
|
|
.. _0.87.1: ../release-notes#v0-87-1-giant
|
|
.. _0.87: ../release-notes#v0-87-giant
|
|
.. _Giant: ../release-notes#v0-87-giant
|
|
|
|
.. _0.86: ../release-notes#v0-86
|
|
.. _0.85: ../release-notes#v0-85
|
|
.. _0.84: ../release-notes#v0-84
|
|
.. _0.83: ../release-notes#v0-83
|
|
.. _0.82: ../release-notes#v0-82
|
|
.. _0.81: ../release-notes#v0-81
|
|
|
|
.. _0.80.10: ../release-notes#v0-80-10-firefly
|
|
.. _0.80.9: ../release-notes#v0-80-9-firefly
|
|
.. _0.80.8: ../release-notes#v0-80-8-firefly
|
|
.. _0.80.7: ../release-notes#v0-80-7-firefly
|
|
.. _0.80.6: ../release-notes#v0-80-6-firefly
|
|
.. _0.80.5: ../release-notes#v0-80-5-firefly
|
|
.. _0.80.4: ../release-notes#v0-80-4-firefly
|
|
.. _0.80.3: ../release-notes#v0-80-3-firefly
|
|
.. _0.80.2: ../release-notes#v0-80-2-firefly
|
|
.. _0.80.1: ../release-notes#v0-80-1-firefly
|
|
.. _0.80: ../release-notes#v0-80-firefly
|
|
.. _Firefly: ../release-notes#v0-80-firefly
|
|
|
|
.. _0.79: ../release-notes#v0-79
|
|
.. _0.78: ../release-notes#v0-78
|
|
.. _0.77: ../release-notes#v0-77
|
|
.. _0.76: ../release-notes#v0-76
|
|
.. _0.75: ../release-notes#v0-75
|
|
.. _0.74: ../release-notes#v0-74
|
|
.. _0.73: ../release-notes#v0-73
|
|
|
|
.. _0.72.2: ../release-notes#v0-72-2-emperor
|
|
.. _0.72.1: ../release-notes#v0-72-1-emperor
|
|
.. _0.72: ../release-notes#v0-72-emperor
|
|
.. _Emperor: ../release-notes#v0-72-emperor
|
|
|
|
.. _0.71: ../release-notes#v0-71
|
|
.. _0.70: ../release-notes#v0-70
|
|
.. _0.69: ../release-notes#v0-69
|
|
.. _0.68: ../release-notes#v0-68
|
|
|
|
.. _0.67.11: ../release-notes#v0-67-11-dumpling
|
|
.. _0.67.10: ../release-notes#v0-67-10-dumpling
|
|
.. _0.67.9: ../release-notes#v0-67-9-dumpling
|
|
.. _0.67.8: ../release-notes#v0-67-8-dumpling
|
|
.. _0.67.7: ../release-notes#v0-67-7-dumpling
|
|
.. _0.67.6: ../release-notes#v0-67-6-dumpling
|
|
.. _0.67.5: ../release-notes#v0-67-5-dumpling
|
|
.. _0.67.4: ../release-notes#v0-67-4-dumpling
|
|
.. _0.67.3: ../release-notes#v0-67-3-dumpling
|
|
.. _0.67.2: ../release-notes#v0-67-2-dumpling
|
|
.. _0.67.1: ../release-notes#v0-67-1-dumpling
|
|
.. _0.67: ../release-notes#v0-67-dumpling
|
|
.. _Dumpling: ../release-notes#v0-67-dumpling
|
|
|
|
Understanding the release cycle
|
|
-------------------------------
|
|
|
|
The development release cycle is two to four weeks long. Each cycle
|
|
freezes the master development branch and applies `integration and
|
|
upgrade tests <https://github.com/ceph/ceph-qa-suite>`_ for the
|
|
duration of one cycle before it is released and the next release's
|
|
code is frozen for testing. Once released, there is no effort to
|
|
backport fixes; developer focus in on the next development release
|
|
which is usually only a few weeks away.
|
|
|
|
There are three to four stable releases a year. Each stable release
|
|
will receive a name (e.g., 'Firefly') and bug fix backports at least
|
|
until the next stable release is out.
|
|
|
|
Every other stable releases is a LTS (Long Term Stable) and will
|
|
receive updates until two LTS are published. For instance Dumpling is
|
|
retired when Hammer is published, Firefly is retired when Jewel is
|
|
published etc. The rationale is that backports to a LTS (Dumpling for
|
|
instance) are expected to happen until the next LTS is published
|
|
(Firefly is the LTS following Dumpling), to fix bugs and possibly
|
|
backport important features. After the next LTS is published, there
|
|
backports are still expected to fix bugs with a focus on whatever can
|
|
prevent upgrades to the next LTS (in our example, fixes to Dumpling
|
|
were published after Firefly was released and until Hammer was
|
|
published, primarily to ensure Dumpling cluster can smoothly migrate
|
|
to Firefly).
|
|
|
|
* LTS : until the next two LTS are published
|
|
* Stable release : until the next stable release is published
|
|
* Development / testing release : no backports
|
|
|
|
For each stable release:
|
|
|
|
* `Integration and upgrade tests
|
|
<https://github.com/ceph/ceph-qa-suite>`_ are run on a regular basis
|
|
and `their results <http://pulpito.ceph.com/>`_ analyzed by Ceph
|
|
developers.
|
|
* `Issues <http://tracker.ceph.com/projects/ceph/issues?query_id=27>`_
|
|
fixed in the development branch is scheduled to be backported to the
|
|
release.
|
|
* When an issue found in the release is `reported
|
|
<http://tracker.ceph.com/projects/ceph/issues/new>`_ it will be
|
|
triaged by Ceph developers.
|
|
* The `stable releases and backport team <http://tracker.ceph.com/projects/ceph-releases>`_
|
|
publishes ``point releases`` including fixes that have been backported to the release.
|
|
|
|
In the timeline, the life time of a LTS is calculated to be
|
|
approximately 18 months after the month of the first release. For
|
|
instance, Dumpling is published August 2013 and 18 months starting
|
|
September 2013 is February 2015, therefore by March 2015 Dumpling
|
|
should be retired. The lifetime of a release may vary because it
|
|
depend on how quickly the stable releases are published. For instance
|
|
although Dumpling theoritical retirement was March 2015, it was
|
|
extended to May 2015.
|
|
|
|
Release numbers conventions
|
|
---------------------------
|
|
|
|
The first Ceph release back in Jan of 2008 was 0.1. That made sense at
|
|
the time. The versioning scheme did not change until April 2015,
|
|
when 0.94.1 (the first Hammer point release) was published. To avoid reaching
|
|
0.99 (and 0.100 or 1.00?) we have a new strategy.
|
|
|
|
* x.0.z - development releases (for early testers and the brave at heart)
|
|
* x.1.z - release candidates (for test clusters, brave users)
|
|
* x.2.z - stable/bugfix releases (for users)
|
|
|
|
``x`` will start at 9 for Infernalis (``I`` is the 9th letter), making
|
|
our first development release of the 9th release cycle 9.0.0.
|
|
Subsequent development releases will be 9.0.1, 9.0.2, etc.
|
|
|
|
After a couple months we'll have a 9.1.0 (and maybe 9.1.1) release candidate.
|
|
|
|
A few weeks after that we'll have the Infernalis release 9.2.0, followed
|
|
by stable bug fix updates 9.2.1, 9.2.2, etc., and then begin work on the
|
|
Jewel (10.y.z) release.
|