Improve release and development cycle documentation
This commit: - Adds a table highlighting the status of each version and provides a link to each major release's changelog - Re-inforces how stable versions are maintained and for how long - Moves this documentation out of the developer tree (this is interesting for users too!) while keeping a link there.pull/4420/head
David Moreau-Simard
Toshio Kuratomi
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Releases
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========
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.. contents:: Topics
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:local:
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.. _support_life:
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Support for older releases
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``````````````````````````
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Ansible supports the two most recent major, stable releases. Security- and bug-related fixes may be implemented in older versions, but this
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support is not guaranteed.
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If you are on a release older than the last two major, stable releases, please see our `Porting Guide <http://docs.ansible.com/ansible/porting_guide_2.0.html>`_.
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.. _schedule:
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Release schedule
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````````````````
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Ansible is on a 'flexible' 4 month release schedule. Sometimes the release cycle can be extended if there is a major change that requires more time (for example, a core rewrite).
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Recently the main Ansible repo `merged <https://docs.ansible.com/ansible/dev_guide/repomerge.html>`_ the separated ansible-modules-core and ansible-modules-extras repos, as such modules get released at the same time as the main Ansible repo.
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The major features and bugs fixed in a release should be reflected in the `CHANGELOG.md <https://github.com/ansible/ansible/blob/devel/CHANGELOG.md>`_. Minor features and bug fixes will be shown in the commit history. For example, `issue #19057 <https://github.com/ansible/ansible/pull/19057>`_ is reflected only in the commit history.
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When a fix orfeature gets added to the `devel` branch it will be part of the next release. Some bugfixes can be backported to previous releases and will be part of a minor point release if such a release is deemed necessary.
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Sometimes a release candidate can be extended by a few days if a bug fix makes a change that can have far-reaching consequences, so users have enough time to find any new issues that may stem from this.
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.. _methods:
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Release methods
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````````````````
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Ansible normally goes through a 'release candidate', issuing an RC1 for a release. If no major bugs are discovered in the release candidate after 5 business days, we'll get a final release. Otherwise, fixes will be applied and an RC2 will be provided for testing. If no bugs are discovered in RC2 after 2 days, the final release will be made, iterating this last step and incrementing the candidate number as we find major bugs.
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.. _freezing:
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Release feature freeze
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``````````````````````
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During the release candidate process, the focus will be on bugfixes that affect the RC, new features will be delayed while we try to produce a final version. Some bugfixes that are minor or don't affect the RC will also be postponed until after the release is finalized.
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.. seealso::
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:doc:`developing_api`
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Python API to Playbooks and Ad Hoc Task Execution
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:doc:`developing_modules`
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How to develop modules
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:doc:`developing_plugins`
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How to develop plugins
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`Ansible Tower <https://ansible.com/ansible-tower>`_
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REST API endpoint and GUI for Ansible, syncs with dynamic inventory
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`Development Mailing List <http://groups.google.com/group/ansible-devel>`_
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Mailing list for development topics
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`irc.freenode.net <http://irc.freenode.net>`_
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#ansible IRC chat channel
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@ -33,6 +33,6 @@ To get started, select one of the following topics.
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developing_rebasing
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developing_rebasing
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testing
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testing
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repomerge
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repomerge
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developing_releases
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../release_and_maintenance
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../committer_guidelines
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../committer_guidelines
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./style_guide/index
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./style_guide/index
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@ -42,4 +42,4 @@ Ansible, Inc. releases a new major release of Ansible approximately every two mo
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YAMLSyntax
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YAMLSyntax
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porting_guide_2.0
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porting_guide_2.0
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python_3_support
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python_3_support
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release_and_maintenance
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@ -0,0 +1,137 @@
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Release and maintenance
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=======================
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.. contents:: Topics
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:local:
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.. _schedule:
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Release cycle
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`````````````
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Ansible is developed and released on a flexible 4 months release cycle.
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This cycle can be extended in order to allow for larger changes to be properly
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implemented and tested before a new release is made available.
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Ansible supports the two most recent major stable releases.
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For more information, read about the
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`development and stable version maintenance workflow`_.
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If you are using a release of Ansible that is no longer supported, we strongly
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encourage you to upgrade as soon as possible in order to benefit from the
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latest features and security fixes.
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Older unsupported versions of Ansible can contain unfixed security
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vulnerabilities (*CVE*).
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You can refer to the `porting guide`_ for tips on updating your Ansible
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playbooks to run on newer versions.
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.. _porting guide: https://docs.ansible.com/ansible/porting_guide_2.0.html
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Release status
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``````````````
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+-----------------+----------------------------+----------------------------------------+
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| Ansible release | Latest version | Status |
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+=================+============================+========================================+
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| devel | `2.4`_ (unreleased, trunk) | In development |
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+-----------------+----------------------------+----------------------------------------+
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| 2.3 | `2.3.1`_ (2017-06-01) | Supported (bug **and** security fixes) |
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+-----------------+----------------------------+----------------------------------------+
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| 2.2 | `2.2.3`_ (2017-05-09) | Supported (**only** security fixes) |
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+-----------------+----------------------------+----------------------------------------+
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| 2.1 | `2.1.6`_ (2017-06-01) | Unsupported (end of life) |
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+-----------------+----------------------------+----------------------------------------+
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| 2.0 | `2.0.2`_ (2016-04-19) | Unsupported (end of life) |
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+-----------------+----------------------------+----------------------------------------+
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| 1.9 | `1.9.6`_ (2016-04-15) | Unsupported (end of life) |
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+-----------------+----------------------------+----------------------------------------+
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| <1.9 | n/a | Unsupported (end of life) |
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+-----------------+----------------------------+----------------------------------------+
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.. _2.4: https://github.com/ansible/ansible/blob/devel/CHANGELOG.md
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.. _2.3.1: https://github.com/ansible/ansible/blob/stable-2.3/CHANGELOG.md
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.. _2.2.3: https://github.com/ansible/ansible/blob/stable-2.2/CHANGELOG.md
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.. _2.1.6: https://github.com/ansible/ansible/blob/stable-2.1/CHANGELOG.md
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.. _2.0.2: https://github.com/ansible/ansible/blob/stable-2.0/CHANGELOG.md
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.. _1.9.6: https://github.com/ansible/ansible/blob/stable-1.9/CHANGELOG.md
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.. _support_life:
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.. _methods:
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Development and stable version maintenance workflow
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```````````````````````````````````````````````````
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The Ansible community develops and maintains Ansible on GitHub_.
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New modules, plugins, features and bugfixes will always be integrated in what
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will become the next major version of Ansible.
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This work is tracked on the ``devel`` git branch.
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Ansible provides bugfixes and security improvements for the most recent major
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release while the previous major release will only receive security patches.
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This work is tracked on the ``stable-<version>`` git branches.
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The fixes that land in supported stable branches will eventually be released
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as a new version when necessary.
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For more information on the changes included in each new version, you can refer
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to the changelog_, available on GitHub.
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Note that while there are no guarantees for providing fixes for unsupported
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releases of Ansible, there can sometimes be exceptions for critical issues.
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.. _GitHub: https://github.com/ansible/ansible
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.. _changelog: https://github.com/ansible/ansible/blob/devel/CHANGELOG.md
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Release candidates
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~~~~~~~~~~~~~~~~~~
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Before a new release or version of Ansible can be done, it will typically go
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through a release candidate process.
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This provides the Ansible community the opportunity to test Ansible and report
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bugs or issues they might come across.
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Ansible tags the first release candidate (``RC1``) which is usually scheduled
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to last five business days. The final release is done if no major bugs or
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issues are identified during this period.
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If there are major problems with the first candidate, a second candidate will
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be tagged (``RC2``) once the necessary fixes have landed.
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This second candidate lasts for a shorter duration than the first.
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If no problems have been reported after two business days, the final release is
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done.
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More release candidates can be tagged as required, so long as there are
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bugs that the Ansible core maintainers consider should be fixed before the
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final release.
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.. _freezing:
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Feature freeze
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~~~~~~~~~~~~~~
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While there is a pending release candidate, the focus of core developers and
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maintainers will on fixes towards the release candidate.
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Merging new features or fixes that are not related to the release candidate may
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be delayed in order to allow the new release to be shipped as soon as possible.
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.. seealso::
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:doc:`committer_guidelines`
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Guidelines for Ansible core contributors and maintainers
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:doc:`test_strategies`
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Testing strategies
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:doc:`community`
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Community information and contributing
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`Ansible Changelog <https://github.com/ansible/ansible/blob/devel/CHANGELOG.md>`_
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Documentation of the improvements for each version of Ansible
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`Ansible release tarballs <https://releases.ansible.com/ansible/>`_
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Ansible release tarballs
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`Development Mailing List <http://groups.google.com/group/ansible-devel>`_
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Mailing list for development topics
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`irc.freenode.net <http://irc.freenode.net>`_
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#ansible IRC chat channel
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