2015-05-08 20:25:21 +00:00
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=============
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Ceph Releases
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=============
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2015-03-15 20:59:14 +00:00
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2015-05-08 20:25:21 +00:00
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Timeline
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--------
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2015-04-16 08:21:20 +00:00
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2016-04-21 11:39:25 +00:00
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+----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`Dumpling`_|`Emperor`_ |`Firefly`_ |`Giant`_ |`Hammer`_ |`Infernalis`_ | |
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| |LTS |Stable |LTS |Stable |LTS |Stable | |
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+----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| First release | August | November | May | October | April | November | April |
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| | 2013 | 2013 | 2014 | 2014 | 2015 | 2015 | 2016 |
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+----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| Estimated retirement | March | | January | | November | June 2016 | November |
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| | 2015 | | 2016 | | 2016 | | 2017 |
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+----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| Actual retirement | May | May | December | April | | | |
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| | 2015 | 2014 | 2015 | 2015 | | | |
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+----------------------------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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2015-04-16 08:21:20 +00:00
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2016-04-21 11:39:25 +00:00
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |Development|`Dumpling`_|`Emperor`_ |`Firefly`_ |`Giant`_ |`Hammer`_ |`Infernalis`_ |`Jewel`_ |
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| |Testing |LTS |Stable |LTS |Stable |LTS |Stable |LTS |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| April 2016 |`10.1.2`_ | | | | | | |`10.2.0`_ |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`10.1.1`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| March 2016 |`10.1.0`_ | | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`10.0.5`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| February 2016 |`10.0.3`_ | | | | |`0.94.6`_ |`9.2.1`_ | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| January 2016 |`10.0.2`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| December 2015 |`10.0.1`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| November 2015 |`10.0.0`_ | | |`0.80.11`_ | | |`9.2.0`_ | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| October 2015 |`9.1.0`_ | | | | |`0.94.5`_ | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | | | | |`0.94.4`_ | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| August 2015 |`9.0.3`_ | | | | |`0.94.3`_ | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| July 2015 |`9.0.2`_ | | |`0.80.10`_ | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| June 2015 |`9.0.1`_ | | | | |`0.94.2`_ | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| May 2015 |`9.0.0`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| April 2015 | | | | |`0.87.2`_ |`0.94.1`_ | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | | | | |`0.94`_ | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| March 2015 | | | |`0.80.9`_ | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| February 2015 |`0.93`_ | | | |`0.87.1`_ | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.92`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| January 2015 |`0.91`_ | | |`0.80.8`_ | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| December 2014 |`0.90`_ | | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.89`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| November 2014 |`0.88`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| October 2014 |`0.86`_ | | |`0.80.7`_ |`0.87`_ | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | | |`0.80.6`_ | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| September 2014 |`0.85`_ |`0.67.11`_ | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| August 2014 |`0.84`_ |`0.67.10`_ | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| July 2014 |`0.83`_ | | |`0.80.5`_ | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | | |`0.80.4`_ | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | | |`0.80.3`_ | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | | |`0.80.2`_ | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| June 2014 |`0.82`_ | | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.81`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| May 2014 | |`0.67.9`_ | |`0.80.1`_ | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | |`0.67.8`_ | |`0.80`_ | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| April 2014 |`0.79`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| March 2014 |`0.78`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| February 2014 |`0.77`_ |`0.67.7`_ | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | |`0.67.6`_ | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| January 2014 |`0.76`_ | | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.75`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| December 2013 |`0.74`_ |`0.67.5`_ |`0.72.2`_ | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.73`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| November 2013 | | |`0.72.1`_ | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | | |`0.72`_ | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| October 2013 |`0.71`_ |`0.67.4`_ | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.70`_ | | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| September 2013 |`0.69`_ | | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| |`0.68`_ |`0.67.3`_ | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| August 2013 | |`0.67.2`_ | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | |`0.67.1`_ | | | | | | |
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| +-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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| | |`0.67`_ | | | | | | |
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+----------------+-----------+-----------+-----------+-----------+-----------+-----------+--------------+-----------+
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.. _10.2.0: ../release-notes#v10.2.0-jewel
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.. _Jewel: ../release-notes#v10.2.0-jewel
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2015-10-20 16:15:36 +00:00
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2016-04-14 06:18:04 +00:00
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.. _10.1.2: ../release-notes#v10-1-2
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2016-04-08 07:45:55 +00:00
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.. _10.1.1: ../release-notes#v10-1-1
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.. _10.1.0: ../release-notes#v10-1-0-jewel-release-candidate
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2016-03-29 16:16:53 +00:00
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.. _10.0.5: ../release-notes#v10-0-5
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2016-02-10 18:57:37 +00:00
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.. _10.0.3: ../release-notes#v10-0-3
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2016-01-14 14:47:29 +00:00
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.. _10.0.2: ../release-notes#v10-0-2
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2015-12-16 18:03:45 +00:00
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.. _10.0.1: ../release-notes#v10-0-1
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2015-11-23 16:00:29 +00:00
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.. _10.0.0: ../release-notes#v10-0-0
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2016-02-26 15:24:22 +00:00
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.. _9.2.1: ../release-notes#v9-2-1-infernalis
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2015-10-20 16:15:36 +00:00
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.. _9.2.0: ../release-notes#v9-2-0-infernalis
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.. _Infernalis: ../release-notes#v9.2.0-infernalis
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2015-04-09 11:51:15 +00:00
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2015-10-15 13:54:47 +00:00
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.. _9.1.0: ../release-notes#v9-1-0
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2015-08-27 14:06:07 +00:00
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.. _9.0.3: ../release-notes#v9-0-3
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2015-07-16 22:28:52 +00:00
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.. _9.0.2: ../release-notes#v9-0-2
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2015-06-10 19:50:07 +00:00
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.. _9.0.1: ../release-notes#v9-0-1
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2015-05-07 08:29:38 +00:00
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.. _9.0.0: ../release-notes#v9-0-0
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2016-02-23 15:35:34 +00:00
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.. _0.94.6: ../release-notes#v0-94-6-hammer
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2015-10-24 12:31:46 +00:00
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.. _0.94.5: ../release-notes#v0-94-5-hammer
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2015-10-19 21:29:01 +00:00
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.. _0.94.4: ../release-notes#v0-94-4-hammer
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2015-08-27 14:06:07 +00:00
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.. _0.94.3: ../release-notes#v0-94-3-hammer
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2015-06-11 20:35:25 +00:00
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.. _0.94.2: ../release-notes#v0-94-2-hammer
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2015-04-10 09:43:11 +00:00
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.. _0.94.1: ../release-notes#v0-94-1-hammer
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2015-04-09 11:51:15 +00:00
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.. _0.94: ../release-notes#v0-94-hammer
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2015-05-07 08:27:11 +00:00
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.. _Hammer: ../release-notes#v0-94-hammer
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2015-03-15 20:59:14 +00:00
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.. _0.93: ../release-notes#v0-93
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.. _0.92: ../release-notes#v0-92
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.. _0.91: ../release-notes#v0-91
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.. _0.90: ../release-notes#v0-90
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.. _0.89: ../release-notes#v0-89
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.. _0.88: ../release-notes#v0-88
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2015-04-28 08:22:04 +00:00
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.. _0.87.2: ../release-notes#v0-87-2-giant
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2015-03-15 20:59:14 +00:00
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.. _0.87.1: ../release-notes#v0-87-1-giant
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.. _0.87: ../release-notes#v0-87-giant
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2015-05-07 08:27:11 +00:00
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.. _Giant: ../release-notes#v0-87-giant
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2015-03-15 20:59:14 +00:00
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.. _0.86: ../release-notes#v0-86
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.. _0.85: ../release-notes#v0-85
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.. _0.84: ../release-notes#v0-84
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.. _0.83: ../release-notes#v0-83
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.. _0.82: ../release-notes#v0-82
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.. _0.81: ../release-notes#v0-81
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2015-11-19 22:47:48 +00:00
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.. _0.80.11: ../release-notes#v0-80-11-firefly
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2015-07-21 14:56:57 +00:00
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.. _0.80.10: ../release-notes#v0-80-10-firefly
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2015-03-15 20:59:14 +00:00
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.. _0.80.9: ../release-notes#v0-80-9-firefly
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.. _0.80.8: ../release-notes#v0-80-8-firefly
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.. _0.80.7: ../release-notes#v0-80-7-firefly
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.. _0.80.6: ../release-notes#v0-80-6-firefly
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.. _0.80.5: ../release-notes#v0-80-5-firefly
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.. _0.80.4: ../release-notes#v0-80-4-firefly
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.. _0.80.3: ../release-notes#v0-80-3-firefly
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.. _0.80.2: ../release-notes#v0-80-2-firefly
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.. _0.80.1: ../release-notes#v0-80-1-firefly
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.. _0.80: ../release-notes#v0-80-firefly
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.. _Firefly: ../release-notes#v0-80-firefly
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.. _0.79: ../release-notes#v0-79
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.. _0.78: ../release-notes#v0-78
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.. _0.77: ../release-notes#v0-77
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.. _0.76: ../release-notes#v0-76
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.. _0.75: ../release-notes#v0-75
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.. _0.74: ../release-notes#v0-74
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.. _0.73: ../release-notes#v0-73
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.. _0.72.2: ../release-notes#v0-72-2-emperor
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.. _0.72.1: ../release-notes#v0-72-1-emperor
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.. _0.72: ../release-notes#v0-72-emperor
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.. _Emperor: ../release-notes#v0-72-emperor
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.. _0.71: ../release-notes#v0-71
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.. _0.70: ../release-notes#v0-70
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.. _0.69: ../release-notes#v0-69
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.. _0.68: ../release-notes#v0-68
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.. _0.67.11: ../release-notes#v0-67-11-dumpling
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.. _0.67.10: ../release-notes#v0-67-10-dumpling
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.. _0.67.9: ../release-notes#v0-67-9-dumpling
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.. _0.67.8: ../release-notes#v0-67-8-dumpling
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.. _0.67.7: ../release-notes#v0-67-7-dumpling
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.. _0.67.6: ../release-notes#v0-67-6-dumpling
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.. _0.67.5: ../release-notes#v0-67-5-dumpling
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.. _0.67.4: ../release-notes#v0-67-4-dumpling
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.. _0.67.3: ../release-notes#v0-67-3-dumpling
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.. _0.67.2: ../release-notes#v0-67-2-dumpling
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.. _0.67.1: ../release-notes#v0-67-1-dumpling
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.. _0.67: ../release-notes#v0-67-dumpling
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.. _Dumpling: ../release-notes#v0-67-dumpling
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2015-05-08 20:25:21 +00:00
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Understanding the release cycle
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-------------------------------
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The development release cycle is two to four weeks long. Each cycle
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freezes the master development branch and applies `integration and
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upgrade tests <https://github.com/ceph/ceph-qa-suite>`_ for the
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duration of one cycle before it is released and the next release's
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code is frozen for testing. Once released, there is no effort to
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backport fixes; developer focus in on the next development release
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which is usually only a few weeks away.
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There are three to four stable releases a year. Each stable release
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will receive a name (e.g., 'Jewel') and bug fix backports at least
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2015-05-08 20:25:21 +00:00
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until the next stable release is out.
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Every other stable releases is a LTS (Long Term Stable) and will
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receive updates until two LTS are published. For instance Dumpling is
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retired when Hammer is published, Firefly is retired when Jewel is
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2016-03-29 17:16:31 +00:00
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published etc. The rationale is that backports to a LTS (Firefly for
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2015-05-08 20:25:21 +00:00
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instance) are expected to happen until the next LTS is published
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2016-03-29 17:16:31 +00:00
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(Jewel is the LTS following Hammer), to fix bugs and possibly
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backport important features. After the next LTS is published,
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2015-05-08 20:25:21 +00:00
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backports are still expected to fix bugs with a focus on whatever can
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prevent upgrades to the next LTS (in our example, fixes to Dumpling
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were published after Firefly was released and until Hammer was
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published, primarily to ensure Dumpling cluster can smoothly migrate
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to Firefly).
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2016-03-29 17:16:31 +00:00
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* Long Term Stable : until the next two LTS are published
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* Stable release : until the next stable release is published
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* Development / testing release : no backports
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For each stable release:
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* `Integration and upgrade tests
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<https://github.com/ceph/ceph-qa-suite>`_ are run on a regular basis
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and `their results <http://pulpito.ceph.com/>`_ analyzed by Ceph
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developers.
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* `Issues <http://tracker.ceph.com/projects/ceph/issues?query_id=27>`_
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fixed in the development branch (master) are scheduled to be backported.
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* When an issue found in the stable release is `reported
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<http://tracker.ceph.com/projects/ceph/issues/new>`_, it is
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2015-05-08 20:25:21 +00:00
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triaged by Ceph developers.
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* The `stable releases and backport team <http://tracker.ceph.com/projects/ceph-releases>`_
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2016-03-29 17:16:31 +00:00
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publishes ``point releases`` including fixes that have been backported to the stable release.
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2015-05-08 20:25:21 +00:00
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In the timeline, the life time of a LTS is calculated to be
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approximately 18 months after the month of the first release. For
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instance, Dumpling is published August 2013 and 18 months starting
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September 2013 is February 2015, therefore by March 2015 Dumpling
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should be retired. The lifetime of a release may vary because it
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depend on how quickly the stable releases are published. For instance
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although Dumpling theoritical retirement was March 2015, it was
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extended to May 2015.
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2015-05-08 20:27:27 +00:00
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Release numbers conventions
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---------------------------
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The first Ceph release back in Jan of 2008 was 0.1. That made sense at
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the time. The versioning scheme did not change until April 2015,
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when 0.94.1 (the first Hammer point release) was published. To avoid reaching
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0.99 (and 0.100 or 1.00?) we have a new strategy.
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* x.0.z - development releases (for early testers and the brave at heart)
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* x.1.z - release candidates (for test clusters, brave users)
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* x.2.z - stable/bugfix releases (for users)
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``x`` will start at 9 for Infernalis (``I`` is the 9th letter), making
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our first development release of the 9th release cycle 9.0.0.
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Subsequent development releases will be 9.0.1, 9.0.2, etc.
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After a couple months we'll have a 9.1.0 (and maybe 9.1.1) release candidate.
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A few weeks after that we'll have the Infernalis release 9.2.0, followed
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by stable bug fix updates 9.2.1, 9.2.2, etc., and then begin work on the
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Jewel (10.y.z) release.
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