CI test

[konstin]

Aggregate CI test for the current open PRs in the v0.12.0 milestone, plus #20225, rebuilt linearly on current main on 2026-07-08. Included PRs are represented by squash commits; compatibility fixes were made only on this aggregation branch. Closed and merged PRs are removed from consideration.

Included:

• Preserve absolute/relative paths passed to uv add #18402 Preserve absolute/relative paths passed to uv add
• Validate --upgrade-group targets #18957 Validate --upgrade-group targets
• Package by default: Update documentation #19026 Package by default: Update documentation
• Package by default: Stabilize preview feature #19197 Package by default: Stabilize preview feature
• Support --require-hashes in requirements.txt files #19336 Support --require-hashes in requirements.txt files
• Support transitive pre-release dependencies #19993 Support transitive pre-release dependencies
• Suppress excluded-package footer with --no-annotate #20085 Suppress excluded-package footer with --no-annotate
• Route operation diagnostics through the printer #20113 Route operation diagnostics through the printer
• Stabilize preview features for uv 0.12 #20225 CI stabilize test

Not included:

• Always write filesystem locks to a shared state directory #14428 Always write filesystem locks to a shared state directory — still conflicts across 19 paths, including workspace dependencies, filesystem/state APIs, Python/tool/build call sites, moved integration tests, and deleted documentation; this is not fixable by simple conflict resolution.
• Remove bz/lzma/xz support from ZIP handling #18927 Remove bz/lzma/xz support from ZIP handling — has three conflicts against current main, and its unchanged behavior still breaks managed PyPy and Pyodide installs whose upstream archives are .tar.bz2; fixing it requires a design change.

[astral-sh-bot]

uv test inventory changes

This PR changes the tests when compared with the latest main baseline.

• Added tests: 48
• Removed tests: 34
• Changed suites: 10

uv-toml: +0 / -24

Added: none

Removed:

• uv-toml::tests::escapes_double_backslash_e
• uv-toml::tests::escapes_double_backslash_x
• uv-toml::tests::escapes_plain_string
• uv-toml::tests::escapes_toml10_escape_n
• uv-toml::tests::escapes_toml10_escape_u
• uv-toml::tests::escapes_toml11_esc
• uv-toml::tests::escapes_toml11_hex
• uv-toml::tests::features_array_of_tables
• uv-toml::tests::features_double_backslash_not_escape
• uv-toml::tests::features_esc_escape
• uv-toml::tests::features_escape_in_nested_structure
• uv-toml::tests::features_hex_escape
• uv-toml::tests::features_hex_escape_in_dotted_quoted_key
• uv-toml::tests::features_hex_escape_in_quoted_key
• uv-toml::tests::features_inline_table_no_trailing_comma
• uv-toml::tests::features_multiline_inline_table
• uv-toml::tests::features_multiline_inline_table_with_trailing_comma
• uv-toml::tests::features_optional_second_time_values
• uv-toml::tests::features_plain_toml10
• uv-toml::tests::features_std_table
• uv-toml::tests::features_toml10_escape_in_value
• uv-toml::tests::features_toml10_time_values_are_not_11
• uv-toml::tests::features_trailing_comma_in_array_is_not_11
• uv-toml::tests::features_trailing_comma_in_inline_table

uv::build: +1 / -1

Added:

• uv::build::build_backend::rewrite_toml_1_1_by_default

Removed:

• uv::build::build_backend::warn_on_toml_1_1_auto_detected

uv::it: +0 / -1

Added: none

Removed:

• uv::it::publish::non_normalized_filename_warning

uv::lock: +3 / -0

Added:

• uv::lock::lock::lock_explicit_prerelease_mode
• uv::lock::lock::lock_upgrade_group_legacy_dev_dependencies
• uv::lock::lock::lock_upgrade_group_missing

Removed: none

uv::lock_scenarios: +5 / -0

Added:

• uv::lock_scenarios::lock_scenarios::prerelease_base_marker_stable_preference_explicit_first
• uv::lock_scenarios::lock_scenarios::prerelease_base_marker_stable_preference_plain_first
• uv::lock_scenarios::lock_scenarios::prerelease_marker_equivalent_stable_preference
• uv::lock_scenarios::lock_scenarios::prerelease_marker_stable_preference_backtracks
• uv::lock_scenarios::lock_scenarios::transitive_prerelease_forks

Removed: none

uv::pip: +23 / -0

Added:

• uv::pip::pip_install_scenarios::package_stable_prerelease_candidates
• uv::pip::pip_install_scenarios::prerelease_base_extra_stable_preference_after_backtrack
• uv::pip::pip_install_scenarios::prerelease_base_extra_stable_preference_explicit_first
• uv::pip::pip_install_scenarios::prerelease_base_extra_stable_preference_plain_first
• uv::pip::pip_install_scenarios::prerelease_capped_union_alternate_parent
• uv::pip::pip_install_scenarios::prerelease_capped_union_backtrack
• uv::pip::pip_install_scenarios::prerelease_equivalent_stable_preference_explicit_first
• uv::pip::pip_install_scenarios::prerelease_equivalent_stable_preference_plain_first
• uv::pip::pip_install_scenarios::prerelease_extra_stable_preference
• uv::pip::pip_install_scenarios::prerelease_extra_stable_preference_backtracks
• uv::pip::pip_install_scenarios::prerelease_fallback_after_stable_rejected
• uv::pip::pip_install_scenarios::prerelease_multiple_redundant_stable_preference
• uv::pip::pip_install_scenarios::prerelease_multiple_redundant_stable_preference_explicit_first
• uv::pip::pip_install_scenarios::prerelease_redundant_stable_preference_explicit_first
• uv::pip::pip_install_scenarios::prerelease_redundant_stable_preference_plain_first
• uv::pip::pip_install_scenarios::transitive_prerelease_after_decision
• uv::pip::pip_install_scenarios::transitive_prerelease_backtracks
• uv::pip::pip_install_scenarios::transitive_prerelease_equivalent_stable_preference_explicit_first
• uv::pip::pip_install_scenarios::transitive_prerelease_equivalent_stable_preference_plain_first
• uv::pip::pip_install_scenarios::transitive_prerelease_prefers_stable
• uv::pip::pip_install_scenarios::transitive_prerelease_redundant_stable_preference_parent_first
• uv::pip::pip_install_scenarios::transitive_prerelease_redundant_stable_preference_plain_first
• uv::pip::pip_sync::require_hashes_in_requirements_txt

Removed: none

uv::pip_compile: +4 / -0

Added:

• uv::pip_compile::pip_compile::compile_lowest_prereleases
• uv::pip_compile::pip_compile::inactive_scoped_override_does_not_enable_prerelease
• uv::pip_compile::pip_compile::offline_registry_prerelease
• uv::pip_compile::pip_compile::unsafe_package_no_annotate

Removed: none

uv::pip_install: +9 / -1

Added:

• uv::pip_install::pip_install::build_transitive_prerelease
• uv::pip_install::pip_install::disallow_transitive_prerelease
• uv::pip_install::pip_install::explicit_prerelease_allows_direct_marker
• uv::pip_install::pip_install::explicit_prerelease_disallows_transitive_marker
• uv::pip_install::pip_install::explicit_prerelease_does_not_fall_back_if_necessary
• uv::pip_install::pip_install::explicit_prerelease_prefers_stable_for_direct_marker
• uv::pip_install::pip_install::if_necessary_or_explicit_is_deprecated_alias
• uv::pip_install::pip_install::install_require_hashes_in_requirements_txt
• uv::pip_install::pip_install::prerelease_index_strategy_ordering

Removed:

• uv::pip_install::pip_install::build_prerelease_hint

uv::project: +2 / -5

Added:

• uv::project::edit::add_relative_and_absolute_archives
• uv::project::init::init_project_flag_is_not_allowed

Removed:

• uv::project::init::init_project_flag_is_ignored_with_explicit_path
• uv::project::init::init_project_flag_is_not_allowed_under_preview
• uv::project::init::init_project_flag_is_warned_without_path
• uv::project::run::run_project_not_found_preview
• uv::project::run::run_project_not_found_uv_preview_env

uv::python: +1 / -2

Added:

• uv::python::venv::non_empty_dir_exists_clear_force

Removed:

• uv::python::venv::non_empty_dir_exists_clear_preview
• uv::python::venv::non_empty_dir_exists_clear_preview_force

[codspeed-hq]

Merging this PR will degrade performance by 5.14%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

❌ 2 regressed benchmarks
✅ 19 untouched benchmarks
⏩ 6 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	resolve_warm_jupyter_universal	139.4 ms	147.5 ms	-5.52%
❌	WallTime	resolve_warm_jupyter_universal	114.3 ms	120 ms	-4.75%

Tip

Investigate this regression with the CodSpeed MCP and your agent.

---

_{Comparing konsti/ci-test-0.12-prs-20260626 (90d4bfc) with main (a444fcc)}

Footnotes

1. 6 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩