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The following table shows the release time lines for all releases of Asterisk, including those that have reached End of Life.

Release Series

Release Type

Release Date

Security Fix Only

EOL

1.2.Xx

 

2005-11-21

2007-08-07

2010-11-21

1.4.Xx

LTS

2006-12-23

2011-04-21

2012-04-21

1.6.0.Xx

Standard

2008-10-01

2010-05-01

2010-10-01

1.6.1.Xx

Standard

2009-04-27

2010-05-01

2011-04-27

1.6.2.Xx

Standard

2009-12-18

2011-04-21

2012-04-21

1.8.Xx

LTS

2010-10-21

2014-10-21

2015-10-21

10.Xx

Standard

2011-12-15

2012-12-15

2013-12-15

11.x

LTS

2012-10-25

2016-10-25

2017-10-25

12.x

Standard

2013-12-20

2014-12-20

2015-12-20

13.x

LTS

2014-10-24

2020-10-24

2021-10-24

14.xStandard2016-09-262017-09-262018-09-26

15.x

Standard

2017-10-03

2018-10-03

2019-10-03

16.xLTS2018-10-092022-10-092023-10-09
17.xStandard2019-10-282020-10-282021-10-28
18.xLTS2020-10-202024-10-202025-10-20
19.xStandard2021-11-022022-11-022023-11-02

New releases of Asterisk will be made roughly once a year, alternating between standard and LTS releases. Within a given release series that is fully supported, bug fix updates are provided roughly every 4 to 6 weeks. For a release series that is receiving only maintenance for security fixes, updates are made on an as needed basis.

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