Enhancements Replace runtime dependency on zstandard with compression.zstd (Python >=3.14) and backports.zstd (Python 3.10–3.13) for repodata and sharded repodata decompression. (#15486 via #16191) Defer concurrent.futures and threading imports in common/io.py so they only load when executor classes (DummyExecutor, ThreadLimitedThreadPoolExecutor) are first accessed. (#15867 via #15881) Defer heav…
Bug fixes If shards were not found on a channel, conda would cache the not-found response, which can break shards-only channels. Instead, always check for sharded repodata if classic repodata has not been cached. (#16183) Other Fix get_shortcut_dir() test helper to use the supplied prefix when detecting .nonadmin on Windows, aligning with menuinst 2.5 shortcut path behavior. (#16207) Contributors…
Bug fixes Validate Python entry point definitions before generating entry point scripts. (#16168) Contributors @jaimergp Full Changelog: 26.5.1...26.5.2
Bug fixes Fix channel notices display failing with ImportError when a decorated command replaces base python while conda is still running on the previous interpreter. Pre-import conda.notices.views before the command so post-command display does not load modules from rewritten site-packages. (#16126 via #16142) Fix crash in UnavailableInvalidChannel and CondaHTTPError when simplejson is installed…
26.5.0 (2026-05-15) Enhancements Add parsing and storage support for conditional dependencies, optional dependency groups, and variant flags in MatchSpec expressions (introduced in conda/ceps#164, conda/ceps#165, and conda/ceps#166). (#15443) Add --clobber flag to conda create, matching existing support in conda install and conda update. (#15584 via #15801) Display a Warning when exporting lockfil…
Bug fixes Revert inline environment activation for and subsequent optimizations to conda run (#15534, #15672), due to regressions with post-link scripts. (#15896) Contributors @agriyakhetarpal Full Changelog: 26.3.1...26.3.2
Enhancements Record the originating hook for each plugin, enabling conda info and diagnostics to show where plugins were registered from. (#15840) Deprecations No longer search for conda-* executables on PATH when building the CLI parser. (#15840) Mark conda.cli.find_commands as pending deprecation for removal in 27.3. (#15840) Mark conda.utils.sys_prefix_unfollowed as pending deprecation for remo…
Enhancements Improve handling of Windows CMD.EXE activation for environment paths that contain the ^ (caret) character. (#12558 via #15628) Add support for PackageRecord.requested_specs. This will store all the MatchSpec objects that were involved in requesting a package (instead of a single, pre-merged object). To that end, two new attributes in conda.core.solve.Solver, unmerged_specs_to_add and…
Bug fixes Fix conda doctor --fix failing with install() missing 1 required positional argument: 'parser' when attempting to fix packages with missing files. (#15669) Contributors @jezdez Full Changelog: 26.1.0...26.1.1
Enhancements Allow custom_multichannels.defaults to override default_channels. Continuation of effort to devendor conda and remove hardcoded "defaults" channel. (#14661) Defer PrefixData record instantiation until they are accessed for faster query performance. (#14811) Add support for Python 3.14. (#15080, #15618) Speed up the context initialization process by caching condarc file reads. (#15150)…
Bug fixes Do not expose __cuda virtual package when no CUDA version was detected. (#15500) Contributors @jaimergp @kenodegard Full Changelog: 25.11.0...25.11.1