Conda Enhancement Proposals

May 20, 2026 · View on GitHub

Conda is an Open Source project with a diverse and wide-ranging ecosystem.

To better allow community members to provide feedback and proposals for conda's implementation, all major changes should be submitted as Conda Enhancement Proposals (CEP).

Accepted CEPS

CEPTitle
0000CEP template
0001CEP Purpose and Guidelines
0002Add plugin architecture to conda
0003Using the Mamba solver in conda
0004Implement initial conda plugin mechanism
0005Does not exist
0006Add Channel Notices to conda
0007Does not exist
0008Conda Release Schedule
0009Conda Deprecation Schedule
0010Conda Version Support
0011Define the menuinst standard
0012Serving run_exports metadata in conda channels
0013A new recipe format – part 1
0014A new recipe format – part 2 - the allowed keys & values
0015Hosting repodata.json and packages separately by adding a base_url property
0016Sharded Repodata
0017Optional python site-packages path in repodata
0018Migration to the Zulip chat platform
0019Computing the hash of the contents in a directory
0020Support for abi3 Python packages
0021Run-exports in sharded Repodata
0022Frozen environments
0023Text spec input files
0024Specification of environment.yml input files
0025Versioning of Existing conda Standards
0026Identifying Packages and Channels in the conda Ecosystem
0027Standardizing a publish attestation for the conda ecosystem
0028Customizable system DLL linkage checks for Windows
0029The MatchSpec query language
0030Virtual packages
0031Build provenance metadata
0032Management and structure of conda environments
0033Version literals and their ordering
0034Contents of conda packages
0035Distributable package artifacts file formats
0036Package metadata files served by conda channels
0037conda-lock.yml lockfiles
0038Channel-wide metadata files served by conda channels
0039A new recipe format (part 3): jinja functions in recipes
0040A new recipe format (part 4): Rendered recipe YAML and serialization
0041The staging output in v1 recipes / rattler-build
0042Channel relations in repodata
0043Conditional dependencies
0044Optional dependency groups
0045Simplified variant selection
0046The __cuda_arch virtual package

References

These proposals are similar to conda-forge's CFEP, Python's PEP and IPython's IPEP processes etc.

Writing a new CEP

Community members are encouraged to author a CEP to suggest changes before any code is written to allow for the community to discuss the proposed changes.

The formal process by which CEPs should be authored and how they are reviewed and resolved is specified in CEP 1.

A template for new CEPs is given in CEP 0.

CEPs which are in draft/proposed form should have the number XXXX in both their PR title, CEP title, and filename. A number will be assigned to the CEP upon acceptance, and all references to the CEP should be updated to reflect the CEP's number. To refer to the CEP before it has a number, use its PR number or its title.

Conda capitalization standards

  1. Conda should be written in lowercase, whether in reference to the tool, ecosystem, packages, or organization.
  2. References to the conda command should use code formatting (i.e. conda).
  3. If the use of conda is not a command and if conda is at the beginning of a sentence, conda should be uppercase.

Examples

In sentences

Beginning a sentence:

  • Conda is an open-source package and environment management system.
  • conda install can be used to install packages.

Conda in the middle of a sentence:

  • If a newer version of conda is available, you can use conda update conda to update to that version.
  • You can find conda packages within conda channels. The conda command can search these channels.

In titles and headers

Titles and headers should use the same capitalization and formatting standards as sentences.

Links should use the same capitalization conventions as sentences. Because the conda docs currently use re-structured text (RST) as a markup language, and RST does not support nested inline markup, documentation writers should avoid using code backtick formatting inside links.