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Co-authored-by: Ken Odegard <kodegard@anaconda.com> Co-authored-by: Brett Cannon <brett@python.org> Co-authored-by: Jannis Leidel <jannis@leidel.info>
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| <table> | ||
| <tr><td> Title </td><td> Conda Version Support </td> | ||
| <tr><td> Status </td><td> Accepted </td></tr> | ||
| <tr><td> Author(s) </td><td> Travis Hathaway <thathaway@anaconda.com></td></tr> | ||
| <tr><td> Created </td><td> May 19, 2022</td></tr> | ||
| <tr><td> Updated </td><td> March 23, 2023</td></tr> | ||
| <tr><td> Discussion </td><td> https://github.com/conda-incubator/ceps/pull/25 </td></tr> | ||
| <tr><td> Implementation </td><td> NA </td></tr> | ||
| </table> | ||
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| ## Abstract | ||
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| This CEP introduces an official version support policy to promote transparency and certainty | ||
| about which versions of conda are supported. The policy itself states that only the latest | ||
| released version of conda will be supported. Instead of patching previous releases, maintainers | ||
| will only focus their efforts on new and current releases. The implications of | ||
| this and how this looks will be outlined below. | ||
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| ## Specification | ||
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| The latest version of conda will be the only officially supported version of conda. This relates | ||
| only to the conda project itself (i.e. conda-build is not included). This means that the only | ||
| time patch releases will be made are soon after a release goes out. For example, if a | ||
| bug is identified soon after releasing conda `23.11.0` and fixed, a subsequent `23.11.1` | ||
| release will be made. Patch releases for conda versions older than the current version | ||
| will not be made. | ||
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| When a user is using a version older than the current version, we make no guarantees that | ||
| patches for this release will be made. If bugs are encountered with this particular release, | ||
| users will be encouraged to upgrade to the most recent release. | ||
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| The conda project already commits to maintain backwards compatibility per CEP-9. | ||
| Any breaking changes will be announced ahead of time and go through our established | ||
| [deprecation schedule][deprecation-schedule]. | ||
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| ## Motivation | ||
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| The primary motivation for this CEP is setting clear expectations about how long | ||
| a particular version of conda will be supported. We do not expect our users to | ||
| always be running the latest version of conda, but we also do not want to give | ||
| users the impression that every version of conda will be supported indefinitely. | ||
| Therefore, we felt it necessary to outline with this CEP exactly which versions | ||
| will be supported and how. This not only helps set expectations for our users but | ||
| also eases our development efforts knowing we no longer have to support older versions | ||
| of conda. | ||
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| ## Rationale | ||
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| For many projects (more information here: https://endoflife.date), either | ||
| the latest version is supported or the projects have a sliding window of time | ||
| for their supported versions. This window is a guarantee saying that the | ||
| version in question will be supported for a specific amount of time. For most who | ||
| use a version window, they further specify the types of fixes a version will receive | ||
| as it ages. | ||
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| For conda, we decided to not pursue a sliding window of supported versions. Instead, | ||
| we opted to only support the latest version. This was decided for a few reasons: | ||
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| 1. This is effectively what conda has already been doing. Very rarely in conda's history has a bugfix or security patch been released for an older version of conda, the standing policy has been to ask users to upgrade to the latest version. | ||
| 2. It's relatively easy for users to update conda, so regular updates are highly encouraged. | ||
| 3. Supporting multiple versions at any one point in time is burdensome, time consuming, and distracts from other valuable work our maintainers can be focused on instead. | ||
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| ## Alternatives | ||
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| - **Indefinitely support all conda versions ever:** not sustainable or practical for our community stakeholders. | ||
| - **Support a sliding window of versions:** also not sustainable or practical for our community stakeholders. | ||
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| ## Resolution | ||
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| This was a standard, non-timed-out vote. | ||
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| - Among [Steering Council](https://github.com/conda-incubator/governance/blob/99471e2e05151f44fe31696677d45b05a428ca66/steering.csv) members there are 10 "yes", 0 "no", and no abstentions. | ||
| - No [Emeritus Steering](https://github.com/conda-incubator/governance/blob/99471e2e05151f44fe31696677d45b05a428ca66/emeritus.csv) member voted. | ||
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| This vote has reached quorum (10 + 0 = 10 which is at least 60% of 14). | ||
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| It has also passed since it recorded 10 "yes" votes and 0 "no" votes giving 10/10 which is greater than 60% of 14. | ||
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| ## Reference | ||
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| Helpful websites and articles: | ||
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| - https://endoflife.date | ||
| - https://pip.pypa.io/en/latest/development/release-process/#supported-versions | ||
| - https://devguide.python.org/versions/ | ||
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| ## Copyright | ||
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| All CEPs are explicitly [CC0 1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/). | ||
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| [deprecation-schedule]: https://github.com/conda-incubator/ceps/blob/main/cep-9.md |