--- /dev/null
+=============
+Ceph Releases
+=============
+
+Timeline
+--------
+
++----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| |`Dumpling`_|`Emperor`_ |`Firefly`_ |`Giant`_ |`Hammer`_ |`Infernalis`_ |`Jewel`_ |`Kraken`_ |
+| |LTS |Stable |LTS |Stable |LTS |Stable |LTS |Stable |
++----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| First release | August | November | May | October | April | November | April | January |
+| | 2013 | 2013 | 2014 | 2014 | 2015 | 2015 | 2016 | 2017 |
++----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| Estimated retirement | March | | January | | May | | November | |
+| | 2015 | | 2016 | | 2017 | | 2017 | |
++----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| Actual retirement | May | May | April | April | | April 2016 | | |
+| | 2015 | 2014 | 2016 | 2015 | | | | |
++----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| |Development|`Dumpling`_|`Emperor`_ |`Firefly`_ |`Giant`_ |`Hammer`_ |`Infernalis`_ |`Jewel`_ |`Kraken`_ |
+| |Testing |LTS |Stable |LTS |Stable |LTS |Stable |LTS |Stable |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| July 2017 | 12.1.1 | | | | | | |`10.2.9`_ | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| | | | | | | | |`10.2.8`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| June 2017 |`12.1.0`_ | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| May 2017 |`12.0.3`_ | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| April 2017 |`12.0.2`_ | | | | | | |`10.2.7`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| March 2017 |`12.0.1`_ | | | | | | |`10.2.6`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| February 2017 |`12.0.0`_ | | | | |`0.94.10`_ | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| January 2017 | 11.1.1 | | | | | | | |`11.2.0`_ |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| December 2016 | 11.1.0 | | | | | | |`10.2.5`_ | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| | | | | | | | |`10.2.4`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| October 2016 |`11.0.2`_ | | | | | | | | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| | 11.0.1 | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| September 2016 | | | | | | | |`10.2.3`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| August 2016 | | | | | |`0.94.9`_ | | | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| | | | | | |`0.94.8`_ | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| June 2016 | 11.0.0 | | | | | | |`10.2.2`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| May 2016 | | | | | |`0.94.7`_ | |`10.2.1`_ | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| April 2016 |`10.1.2`_ | | | | | | |`10.2.0`_ | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| |`10.1.1`_ | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| March 2016 |`10.1.0`_ | | | | | | | | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| |`10.0.5`_ | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| February 2016 |`10.0.3`_ | | | | |`0.94.6`_ |`9.2.1`_ | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| January 2016 |`10.0.2`_ | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| December 2015 |`10.0.1`_ | | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| November 2015 |`10.0.0`_ | | |`0.80.11`_ | | |`9.2.0`_ | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| October 2015 |`9.1.0`_ | | | | |`0.94.5`_ | | | |
+| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| | | | | | |`0.94.4`_ | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| August 2015 |`9.0.3`_ | | | | |`0.94.3`_ | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+| 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`_ | | | | | | | |
++----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+-----------+
+
+
+.. _12.1.0: ../release-notes#v12-1-0-luminous-rc
+.. _12.0.3: ../release-notes#v12-0-3-luminous-dev
+.. _12.0.2: ../release-notes#v12-0-2-luminous-dev
+.. _12.0.1: ../release-notes#v12-0-1-luminous-dev
+.. _12.0.0: ../release-notes#v12-0-0-luminous-dev
+
+.. _11.2.0: ../release-notes#v11-2-0-kraken
+.. _Kraken: ../release-notes#v11-2-0-kraken
+
+.. _11.0.2: ../release-notes#v11-0-2-kraken
+
+.. _10.2.9: ../release-notes#v10-2-9-jewel
+.. _10.2.8: ../release-notes#v10-2-8-jewel
+.. _10.2.7: ../release-notes#v10-2-7-jewel
+.. _10.2.6: ../release-notes#v10-2-6-jewel
+.. _10.2.5: ../release-notes#v10-2-5-jewel
+.. _10.2.4: ../release-notes#v10-2-4-jewel
+.. _10.2.3: ../release-notes#v10-2-3-jewel
+.. _10.2.2: ../release-notes#v10-2-2-jewel
+.. _10.2.1: ../release-notes#v10-2-1-jewel
+.. _10.2.0: ../release-notes#v10-2-0-jewel
+.. _Jewel: ../release-notes#v10-2-0-jewel
+
+.. _10.1.2: ../release-notes#v10-1-2-jewel-release-candidate
+.. _10.1.1: ../release-notes#v10-1-1-jewel-release-candidate
+.. _10.1.0: ../release-notes#v10-1-0-jewel-release-candidate
+.. _10.0.5: ../release-notes#v10-0-5
+.. _10.0.3: ../release-notes#v10-0-3
+.. _10.0.2: ../release-notes#v10-0-2
+.. _10.0.1: ../release-notes#v10-0-1
+.. _10.0.0: ../release-notes#v10-0-0
+
+.. _9.2.1: ../release-notes#v9-2-1-infernalis
+.. _9.2.0: ../release-notes#v9-2-0-infernalis
+.. _Infernalis: ../release-notes#v9-2-0-infernalis
+
+.. _9.1.0: ../release-notes#v9-1-0
+.. _9.0.3: ../release-notes#v9-0-3
+.. _9.0.2: ../release-notes#v9-0-2
+.. _9.0.1: ../release-notes#v9-0-1
+.. _9.0.0: ../release-notes#v9-0-0
+
+.. _0.94.10: ../release-notes#v0-94-10-hammer
+.. _0.94.9: ../release-notes#v0-94-9-hammer
+.. _0.94.8: ../release-notes#v0-94-8-hammer
+.. _0.94.7: ../release-notes#v0-94-7-hammer
+.. _0.94.6: ../release-notes#v0-94-6-hammer
+.. _0.94.5: ../release-notes#v0-94-5-hammer
+.. _0.94.4: ../release-notes#v0-94-4-hammer
+.. _0.94.3: ../release-notes#v0-94-3-hammer
+.. _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
+
+.. _0.80.11: ../release-notes#v0-80-11-firefly
+.. _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., 'Jewel') 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 (Firefly for
+instance) are expected to happen until the next LTS is published
+(Jewel is the LTS following Hammer), to fix bugs and possibly
+backport important features. After the next LTS is published,
+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).
+
+* Long Term Stable : 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 (master) are scheduled to be backported.
+* When an issue found in the stable release is `reported
+ <http://tracker.ceph.com/projects/ceph/issues/new>`_, it is
+ 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 stable 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.
Code Review / stor4nfv.git / blobdiff