Version 4.3.6

New features

• feat: implemented NON-memberwise deserialization for AsMap (v4). by @jpivarski in #747

Bug-fixes and performance

• fix: ReadOnlyDirectory should provide the largest abs(cycle) when cycle is unspecified, not the largest cycle (v4). by @jpivarski in #721
• fix: regularize ROOT type aliases to C fundamental type names (v4). by @jpivarski in #718

Other

• test: adjust for boost-histogram 1.3.2's _storage_type deprecation (v4). by @jpivarski in #720

Full Changelog: v4.3.5...v4.3.6

Version 5.0.0rc4

New features

(none)

Bug-fixes and performance

(none)

Other

• chore: drop Python 3.6. by @jpivarski in #742

Full Changelog: v5.0.0rc3...v5.0.0rc4

Version 5.0.0rc3

New features

• feat: from_map like optimization for dask arrays by @kkothari2001 in #679
• feat: Finalizing AwkwardForth reader for Uproot by @aryan26roy in #644

Bug-fixes and performance

• fix: Avoid triggering temporary dask-awkward/awkward incompatibility. by @jpivarski in #694
• fix: Do not write incorrect fSumw2 in histograms (v5). by @jpivarski in #698
• fix: Fixes uproot.dask bug with empty branches by @kkothari2001 in #700
• fix: Use from_map optimization for delayed numpy arrays and add tests with empty branches for the same by @kkothari2001 in #703
• fix: use ctx manager to ensure resources are freed by @agoose77 in #713
• fix: ReadOnlyDirectory should provide the largest abs(cycle) when cycle is unspecified, not the largest cycle. by @jpivarski in #715
• fix: regularize ROOT type aliases to C fundamental type names. by @jpivarski in #717

Other

• test: adjust for boost-histogram 1.3.2's _storage_type deprecation. by @jpivarski in #719
• ci: Lint PR titles according to conventional commits by @jpivarski in #689
• ci: use concurrency group for semantic-pr-title by @agoose77 in #691
• ci: [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #706
• docs: Installation requirements and error text for dask/dask-awkward in extras.py by @jpivarski in #690
• ci: [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #716
• docs: Add image for dask docs by @kkothari2001 in #708
• docs: add veprbl as a contributor by @allcontributors in #728
• docs: add nikoladze as a contributor by @allcontributors in #729
• docs: add klieret as a contributor by @allcontributors in #730
• docs: add dcervenkov as a contributor by @allcontributors in #731
• docs: add beojan as a contributor by @allcontributors in #732
• docs: add agoose77 as a contributor by @allcontributors in #733
• docs: add a CITATION.cff for Uproot. by @jpivarski in #726
• chore: dask_awkward.test_utils moved in ContinuumIO/dask-awkward#76 by @jpivarski in #714

New Contributors

• @agoose77 made their first contribution in #691

Full Changelog: 5.0.0rc2...v5.0.0rc3

Version 4.3.5

Features

• feat: Implement transformed axis from boost-histogram/hist (v4). by @jpivarski in #676

Bug-fixes

• fix: Fixed TTree write_anew in a subdirectory (consistent caches). (v4) by @jpivarski in #678
• fix: Do not write incorrect fSumw2 in histograms (v4). by @jpivarski in #699

Other

• ci: Apply #657 (pre-commit with flake8 v5) to main-v4. by @jpivarski in #681

Full Changelog: 4.3.4...v4.3.5

5.0.0rc2

Development of Uproot v5:

@Moelf reached a first milestone in implementing an RNTuple reader: basic and jagged arrays from all sorts of STL containers: PR #630, #662. Multiple clusters for RNTuple: PR #682.

@kakwok fixed the RAII state of ReadOnlyDirectory in the corner-case fSeekKeys == 0: PR #660.

@kkothari2001 added uproot.dask support for Awkward arrays using dask-awkward: PR #652.

@jpivarski fixed pathlib.Path handling of double slashes in URLs: PR #670. Fixed number of overflow bins in hist.axis.IntCategory: PR #671. Prevented std::pair from being AsStridedObjects (which doesn't work): PR #673. Properly handled transformed axis from boost-histogram: PR #675. Fixed a bug caused by AsDynamic with self._header: PR #674. Fixed WritableTTree's write_anew when in a subdirectory: PR #677.

@henryiii made many CI updates, concluding with a move to hatchling: PRs #686, #684, #685, #683, #688.

4.3.4

@kakwok fixed uninitialized attributes of ReadOnlyDirectory: PR #660 (v5) and #661 (v4).

5.0.0rc1

This is the first 5.0 (pre) release!

It should not be considered stable, and it strictly requires Awkward 2.0, so you need to have the latest pre-release of that. This may be reflected in the lazy import of awkward; if not, a subsequent 5.0 pre-release will get that right.

Changes relative to any 4.x release:

@kkothari2001 removed the uproot.lazy function (though a stub remains for the sake of keeping the documentation until 5.0 is actually released): PR #615. Updated the entire codebase from Awkward 1.x to Awkward 2.x: PR #620.

@aryan26roy changed arguments in the awkward_form method: PR #617. (@jpivarski fixed a bug in it: PR #622.) @aryan26roy completed an AwkwardForth-based reader for AsStrings: PR #616. Made the Python code generation in streamers.py more readable: #629. Revised the way that the AwkwardForth code generator would pass through the control flow: PR #636.

@henryiii added dependabot for GitHub Actions: PR #631. Cleaned up flake8: PR #527.

@jpivarski fixed a performance bug, to allow linear-time iteration over TDirectory fields: PR #638 (backported to v4 as well). Set up as close as possible to full-coverage tests for AwkwardForth: #637.

4.3.3

@jpivarski fixed an O(n²) scaling bug in getting data from TDirectories. Now it's O(n). (Matters for large TDirectories.)

PR #638 in main and #639 in main-v4. This release is from main-v4.

4.3.2

@jpivarski cleanly ensured all Interpretation.awkward_form signatures have been reverted (even AsJagged): PR #627.

4.3.1

@jpivarski applied this fix: #618 (comment).