26.1.0

Enhancements

• Enable echo on for Windows build scripts. (#5803)
• Add support for CEP 28 (customizable system DLL linkage checks for Windows). (#5806)
• Add riscv64 architecture support to the cdt() Jinja function. (#5846)

Bug fixes

• Handle unknown dynamic tags in liefldd. (#5665 via #5778)
• Delete rpath before adding rpath on macOS to avoid errors with not having enough space to add rpath. (#5855 via #5856)
• Don't fail on empty source archive. Ignore and continue instead. (#5854 via #5861)
• Fix PendingDeprecationWarning for conda.models.enums.PathType by using the new PathEnum name with backward compatibility. (#5901)

Deprecations

• Stop warning about failed conda-verify imports. Errors will be logged as debug statements. (#5841 via #5844)
• Bump minimum conda version to 25.11.0 and conda-libmamba-solver to 25.11.0. Remove obsolete CondaSolver deprecation warning filters. (#5905)
• Remove obsolete restore_free_channel deprecation warning filter. This property was removed in conda 25.9.0. (#5905)

Docs

• Document conda_build_config.yaml variable type differences in selectors vs Jinja2 expressions (#5852 via #5887)

Other

• Use conda-forge channel for macOS Intel (osx-64) CI tests since conda 25.11+ is not available in defaults channel for that platform. (#5905)

Contributors

• @cbouss
• @conda-bot
• @isuruf
• @jaimergp
• @jsmolic
• @jezdez
• @kathatherine
• @kenodegard
• @bitsk
• @dependabot[bot]
• @pre-commit-ci[bot]

Full Changelog: 25.11.1...26.1.0

25.11.1

Bug fixes

• Prevent empty channel lists from being passed to host environment creation. (#5857)

Deprecations

• Remove fallback imports for conda.core.index.Index. (#5857)

Contributors

• @jezdez

25.11.0

Enhancements

• Allow the PyYAML loader to be specified when calling conda_build.variants.parse_config_file. (#5800)
• Raise menuinst JSON validation errors, which used to be warnings. (#5807)

Bug fixes

• Fix BUILD environment variable to respect cdt_name variant configuration. Previously, BUILD was hardcoded to use cos6 or cos7 based on architecture, ignoring the cdt_name variant when specified. Now, if cdt_name is provided in the variant configuration, it will be used in the BUILD variable. Otherwise, it falls back to the architecture-based default. (#5733)
• Fix Windows MSVC version detection for Python 3.5+. (#5807, #5818)
• Update CMake generator handling for CMake 4 compatibility. CMake 2 compatibility was dropped in CMake 4. (#5807)
• Fix set_regex when finding used variables inside jinja statements. (#5812 via #5811)

Deprecations

• Remove Python 3.9 support. The minimum supported Python version is now 3.10. (#5807)

Other

• Add Python 3.13 to Linux test matrix. (#5807)
• Fix conda deprecation warning filters to prevent CI test failures with strict validation. (#5807)

Contributors

• @conda-bot
• @isuruf
• @jaimergp
• @kenodegard
• @ryanskeith
• @shermansiu made their first contribution in #5800
• @dependabot[bot]
• @pre-commit-ci[bot]

Full Changelog: 25.9.0...25.11.0

25.9.0

Bug fixes

• Import CondaSubcommand from its canonical location to avoid deprecation warnings. (#5747)
• Run outputs parsing check only for multi-output recipes. (#5655 via #5747)

Deprecations

• Use conda.common.path.unix_path_to_win instead of deprecated conda.utils.unix_path_to_win. (#5790)
• Use conda.common.path.BIN_DIRECTORY instead of removed conda.testing.integration.BIN_DIRECTORY. (#5790)

Docs

• Add documentation for package format configuration for command line and configuration in .condarc. (#5687)
• Update package naming conventions documentation to clarify the default package format. (#5687)
• Create new configuration documentation that briefly summarizes configuration precedence and options. (#5687)

Other

• Avoid redundant isfile() check in conda_build.utils.sha256_checksum. (#5422)

Contributors

• @ColemanTom made their first contribution in #5774
• @conda-bot
• @dholth
• @jaimergp
• @jsmolic made their first contribution in #5792
• @jezdez
• @kenodegard
• @roryyorke made their first contribution in #5772
• @ryanskeith
• @dependabot[bot]
• @pre-commit-ci[bot]

Full Changelog: 25.7.0...25.9.0

25.7.0

25.7.0 (2025-07-31)

Deprecations

• Remove conda_build.render._MetaYaml. (#5755)
• Remove conda_build.render._represent_omap. (#5755)
• Remove conda_build.render._unicode_representer. (#5755)
• Remove conda_build.render._IndentDumper according to deprecation policy. Use conda_build.render.CustomDumper instead. (#5755)

Contributors

• @nicoddemus
• @emmanuel-ferdman
• @jaimergp
• @jezdez
• @jakirkham
• @kathatherine
• @kenodegard
• @beckermr
• @ryanskeith
• @soapy1
• @travishathaway
• @dependabot[bot]
• @pre-commit-ci[bot]

25.5.0

Bug fixes

• Validate menuinst JSON documents using the included $schema value. (#5569)
• Require conda-libmamba-solver 25.4 or greater to fix issues with spaces in CONDA_BLD_PATH. This bumps the minimum conda requirement to 24.11. (#5675)
• Fix warning formatting in liefldd. (#5683)
• Fix regression so os.pathsep works in Jinja expressions. (#5705)
• Fix bug where recipe outputs lists was modified during parsing. This caused false-positive warnings about inconsistent recipe outputs due to jinja2 structures and crashes when getting the recipe text. (#5711)
• Restore is and is not operators to selector minilanguage. (#5720 via #5721)
• Remove usage of the schannel attribute which is deprecated in conda. (#5722)

Deprecations

• Deprecate conda_build.render._IndentDumper. Use conda_build.render.CustomDumper instead. (#5282)
• Deprecate conda_build.render._MetaYaml. Unused. (#5282)
• Deprecate conda_build.render._represent_omap. Unused. (#5282)
• Deprecate conda_build.render._unicode_representer. Unused. (#5282)
• Menuinst validation warnings will be raised as errors in 25.11. (#5569)
• Remove conda_build.utils.root_script_dir (#5726)

Other

• menuinst is no longer a dependency. (#5569)
• Add .md extension to news entries. (#5705)

Contributors

• @emmanuel-ferdman
• @jaimergp
• @jezdez
• @jakirkham
• @kenodegard
• @beckermr
• @travishathaway
• @dependabot[bot]
• @pre-commit-ci[bot]

New Contributors

• @emmanuel-ferdman made their first contribution in #5683

25.4.2

Bug fixes

• Added len, replace, float, and join functions/methods for selectors. (#5695)
• Added os.sep to allowed attributes for jinja2 and selectors. (#5695)

Contributors

• @beckermr

25.4.1

Bug fixes

• Fix bug where selectors with lists, tuples, or dicts could not be processed. (#5690)

Contributors

• @beckermr

Full Changelog: 25.4.0...25.4.1

25.4.0

Enhancements

• Use evalidate to evaluate selector logic. This restricts which operations are allowed as part of a selector. In particular, only os.getenv and os.environ are now allowed in the os module. (#5482)
• Ignore run_exports of python from other packages when building with python_version_independent: true. (#5654)

Bug fixes

• Fix get_conda_operation_locks call to use correct arguments. (#4215 via #5259)
• Use conda_build.utils.tar_xf everywhere to avoid blind usage of tar.extractall in conda render and conda convert.
• Fix release upload workflow to use GitHub event tag names. (#5686)

Docs

• Add recommendation to append build number to build string when overwriting build string. (#5676)

Other

• Remove --no-deps, --no-build-isolation, and --ignore-installed pip install options in example recipes as conda-build will enforce all required pip install options itself at build time. (#5541)

Contributors

• @conda-bot
• @isuruf
• @jaimergp
• @kenodegard
• @hombit made their first contribution in #5656
• @matthewfeickert made their first contribution in #5541
• @beckermr
• @soapy1
• @tl-hbk made their first contribution in #5259
• @dependabot[bot]
• @pre-commit-ci[bot]

Full Changelog: 25.3.2...25.4.0

25.3.2

Enhancements

• Ignore run_exports of Python from other packages when building with python_version_independent: true. (#5654)

Bug fixes

• Handle variants for transitive subpackage resolution. (#5644 & #5645 via #5651)

Contributors

• @isuruf

Full Changelog: 25.3.1...25.3.2