Download Micromamba 2.6.0-0

Highlights: Sharded Repodata Support
This minor version includes the support for sharded repodata, significantly improving the UX of the project.
Geometric means of improvement factors between 2.5.0 and 2.6.0 across various specifications:
Analysis Cold cache (first installation) Warm cache (subsequent installations)
Wall time speedup 4.1979× 9.7189×
Peak RSS reduction 17.2994× 16.1247×
Network I/O reduction 21.1021× N/A
💡As of 2.6.0, sharded repodata are used by default if they are present on conda channel.
One can opt-out of this behavior by setting use_sharded_repodata to false in mamba’s configuration.
🔗 Read more about improvements on this blog post.
You can update micromamba to 2.6.0 using:
micromamba self-update

Enhancements:
- [libmamba] feat: Improve progress messages for flat repodata by @jjerphan in https://github.com/mamba-org/mamba/pull/4237
- [libmamba] feat: Improve Sharded Repodata Progress Message by @jjerphan in https://github.com/mamba-org/mamba/pull/4225
- [libmamba, micromamba] feat: Sharded Repodata Support for repoquery by @jjerphan in https://github.com/mamba-org/mamba/pull/4226
- [libmamba, micromamba] feat: Prefilter Shard Records on Python Minor Version by @jjerphan in https://github.com/mamba-org/mamba/pull/4214
- [libmamba] feat: Introduce MatchSpec::extract_name by @jjerphan in https://github.com/mamba-org/mamba/pull/4206
- [libmamba] feat: Optimize PackageInfo descending sorts by @jjerphan in https://github.com/mamba-org/mamba/pull/4208
- [libmamba] feat: Shard Index Handling Adaptation by @jjerphan in https://github.com/mamba-org/mamba/pull/4190
- [libmamba] feat: Parse optional fields for ShardPackageRecord by @jjerphan in https://github.com/mamba-org/mamba/pull/4195
- [libmamba] feat: Support track_features for ShardRecord by @jjerphan in https://github.com/mamba-org/mamba/pull/4192
- [libmamba] feat: Shard Caching by @jjerphan in https://github.com/mamba-org/mamba/pull/4174
- [libmamba, micromamba] feat: Do not warn for missing channels index by @jjerphan in https://github.com/mamba-org/mamba/pull/4189
- [all] build: Export libmamba-spdlog target for building dependencies in tree by @opoplawski in https://github.com/mamba-org/mamba/pull/4172
- [libmamba] feat: Sharded Repodata by @jjerphan in https://github.com/mamba-org/mamba/pull/4162
- [libmamba] feat: Support MSGPACK_OBJECT_ARRAY for hashes by @jjerphan in https://github.com/mamba-org/mamba/pull/4167
- [libmamba, micromamba] feat: Redesign packages caches hierarchically on channels and platforms by @jjerphan in https://github.com/mamba-org/mamba/pull/4163
- [libmamba] feat: Consider emscripten a UNIX platform by @jjerphan in https://github.com/mamba-org/mamba/pull/4168
- [libmamba] feat: Shard Traversal by @jjerphan in https://github.com/mamba-org/mamba/pull/4161
- [libmamba] feat: ShardIndexLoader by @jjerphan in https://github.com/mamba-org/mamba/pull/4149
- [libmamba] feat: Shards by @jjerphan in https://github.com/mamba-org/mamba/pull/4148
- [libmambapy, libmamba] feat: Shard types and utils by @jjerphan in https://github.com/mamba-org/mamba/pull/4145
- [libmamba, micromamba] feat: Support Prefix Data Interoperability by @jjerphan in https://github.com/mamba-org/mamba/pull/4123
Bug fixes:
- [libmamba] fix: Transitive dependencies across channels shards by @jjerphan in https://github.com/mamba-org/mamba/pull/4245
- [libmamba] fix: Make shards availability independent from local cache by @jjerphan in https://github.com/mamba-org/mamba/pull/4243
- [libmamba] fix: Support update --all with Sharded Repodata by @jjerphan in https://github.com/mamba-org/mamba/pull/4241
- [all] fix: Correct repodata_record.json metadata for installations using explicit specifications by @maresb in https://github.com/mamba-org/mamba/pull/4110
- [libmamba, micromamba] fix: Adapt python_site_packages_path on Windows by @jjerphan in https://github.com/mamba-org/mamba/pull/4232
- [libmamba] fix: Keep and use RepoDataPackage's raw version by @jjerphan in https://github.com/mamba-org/mamba/pull/4238
- [libmamba] fix: Make mamba clean --all clear the shards' cache by @jjerphan in https://github.com/mamba-org/mamba/pull/4236
- [libmamba] fix: python_binary_compatible by @chrisburr in https://github.com/mamba-org/mamba/pull/4234
- [libmamba] fix: Add python_abi as a root package with python by @jjerphan in https://github.com/mamba-org/mamba/pull/4233
- [libmamba] fix: Support mixture of flat and sharded repodata by @jjerphan in https://github.com/mamba-org/mamba/pull/4227
- [libmambapy, libmamba] fix: Adapt bindings for UnresolvedChannel's readonly properties by @jjerphan in https://github.com/mamba-org/mamba/pull/4224
- [libmamba, micromamba] config sub-command output hides secrets by @Klaim in https://github.com/mamba-org/mamba/pull/4223
- [libmamba, micromamba] fix: Minor adaptations for sharded repodata support by @jjerphan in https://github.com/mamba-org/mamba/pull/4187
- [libmamba, micromamba] fix: JSON should be set to "success": false when any transactions failed by @Klaim in https://github.com/mamba-org/mamba/pull/4201
- [libmamba] fix: Skip non-executable matches in which_in_one_impl by @xsjk in https://github.com/mamba-org/mamba/pull/4197
- [libmamba] fix: Adapt Shards base URL to handle channel identifiers by @jjerphan in https://github.com/mamba-org/mamba/pull/4210
- [libmamba] fix: Treat sibling-subdir shard loads as successful by @jjerphan in https://github.com/mamba-org/mamba/pull/4209
- [libmamba] fix: Exclude Installed Packages from Root Packages by @jjerphan in https://github.com/mamba-org/mamba/pull/4205
- [libmamba] fix: Fallback on uv for listing installed packages if pip is not available by @jjerphan in https://github.com/mamba-org/mamba/pull/4203
- [libmamba] fix: Respect thread affinity concurrency by @jjerphan in https://github.com/mamba-org/mamba/pull/4193
- [libmamba] fix: Pass priorities in load_single_subdir by @jjerphan in https://github.com/mamba-org/mamba/pull/4188
- [micromamba] fix: Omit --detach option for run subcommand on Windows by @jjerphan in https://github.com/mamba-org/mamba/pull/4185
- [libmamba, micromamba] fix: Sort mamba search results on version numerically by @jjerphan in https://github.com/mamba-org/mamba/pull/4160
- [micromamba] fix: Pretty print short result for mamba search by default by @kuepe-sl in https://github.com/mamba-org/mamba/pull/4066
- [libmamba, micromamba] fix: Show pip and uv output by default by @jjerphan in https://github.com/mamba-org/mamba/pull/4155
- [libmamba, micromamba] Graceful handling of download cancel/interruption by @Klaim in https://github.com/mamba-org/mamba/pull/4146
- [libmamba, micromamba] fix: Do not show activation message for dry runs by @jjerphan in https://github.com/mamba-org/mamba/pull/4140
- [libmamba] fix: Only call get_all_running_processes_info when needed by @mihaitodor in https://github.com/mamba-org/mamba/pull/4135
- [libmamba] Add #include for std::ref by @opoplawski in https://github.com/mamba-org/mamba/pull/4132
CI fixes and doc:
- [all] Fixed path in micromamba-installation.rst by @clausmichele in https://github.com/mamba-org/mamba/pull/4194
- [all] ci: Disable mamba-content-trust and auth tests by @jjerphan in https://github.com/mamba-org/mamba/pull/4186
- [all] docs: Click to Copy code-blocks by @jjerphan in https://github.com/mamba-org/mamba/pull/4175
- [all] ci: Exclude C++ tests in code coverage by @jjerphan in https://github.com/mamba-org/mamba/pull/4147
- [all] ci: Use the dev branch from micromamba-feedstock by @jjerphan in https://github.com/mamba-org/mamba/pull/4144
- [all] ci: Free disk space for all linux workflows by @jjerphan in https://github.com/mamba-org/mamba/pull/4138
- [all] ci: Free disk space for linux workflows by @jjerphan in https://github.com/mamba-org/mamba/pull/4137
Maintenance:
- [libmamba] maint: Rename repodata_use_shards to use_sharded_repodata by @jjerphan in https://github.com/mamba-org/mamba/pull/4244
- [all] build(deps): bump actions/github-script from 8 to 9 by @app/dependabot in https://github.com/mamba-org/mamba/pull/4229
- [libmamba] maint: Retry for update by @jjerphan in https://github.com/mamba-org/mamba/pull/4220
- [libmamba] maint: Factorize common parts of the install, update and remove paths by @jjerphan in https://github.com/mamba-org/mamba/pull/4215
- [all] build(deps): bump mamba-org/setup-micromamba from 2 to 3 by @app/dependabot in https://github.com/mamba-org/mamba/pull/4219
- [all] build(deps): bump codecov/codecov-action from 5 to 6 by @app/dependabot in https://github.com/mamba-org/mamba/pull/4218
- [micromamba] maint: Increase timeout of test_env_logging_overhead_regression to 1 minute by @jjerphan in https://github.com/mamba-org/mamba/pull/4217
- [libmamba] maint: Replace ShardPackageRecord with RepoDataPackage by @jjerphan in https://github.com/mamba-org/mamba/pull/4212
- [libmamba] maint: Reduce logging in Shards::parse_shard_msgpack by @jjerphan in https://github.com/mamba-org/mamba/pull/4207
- [libmamba] maint: Split load_channels_impl into several functions by @jjerphan in https://github.com/mamba-org/mamba/pull/4178
- [libmamba] maint: Adapt Shards ownership model by @jjerphan in https://github.com/mamba-org/mamba/pull/4177
- [all] build(deps): bump actions/upload-artifact from 6 to 7 by @app/dependabot in https://github.com/mamba-org/mamba/pull/4180
- [micromamba] maint: Increase timeout of test_env_logging_overhead_regression by @jjerphan in https://github.com/mamba-org/mamba/pull/4173
- [libmamba] maint: Refactor Channel Loader by @jjerphan in https://github.com/mamba-org/mamba/pull/4169
- [libmamba] maint: Introduce DownloadRequestComponents by @jjerphan in https://github.com/mamba-org/mamba/pull/4164
- [libmamba] test: Changes for catch2 >3.8 by @jjerphan in https://github.com/mamba-org/mamba/pull/4134