1.9.0rc11
Pre-release
@ManasviGoyal implemented a new LayoutBuilder in header-only C++ templates: PR #1494. Documented new GrowableBuffer and LayoutBuilder in doxygen: PR #1579.
@ianna prepared ArrayBuilderOptions for the new LayoutBuilder: PR #1560. Fixed tolayout for Cling generators and Numba: PR #1613. Refactored from_rdataframe to use the new LayoutBuilder: PR #1620.
@ioanaif fixed missing axis_wrap_if_negative in Record (v1 and v2): PR #1565. Prevented ufuncs from being used on records unless overridden: PR #1559. Added an int64_t definition on Windows: PR #1572. Fixed "longlong" type bug discovered in Uproot: PR #1567. Fixed lengths of empty regular slices: PR #1568. Fixed maybe_toNumpyArray for RegularArrays: PR #1589.
@agoose77 protected ak.Array from unintended attribute assignment (when user wants to add a record field): PR #1573. Allowed empty RecordArrays in ak.to_layout: PR #1581. Switched from Azure to GitHub Actions (no more Azure!): PR #1550. Fixed from_iter performance: PR #1614.
@jpivarski prevented mixed Awkward-like and NumPy-like slicing: PR #1598. Renamed ak.to_pandas → ak.to_dataframe: PR #1603. Ensured that ak.concatenate preserves regularness of list types: PR #1604 and #1609. Ensured that ak.concatenate of identical Forms preserves the Form (for Dask): PR #1605. Added a public API for recursively_apply and broadcast_and_apply (ak._v2.transform): PR #1610. Finished refactoring all of the from_json* functions into just one: PR #1617 and #1621.
@henryiii enabled testing for Python 3.11: PR #1602.
In this release, we adopted a PR naming convention (Angular's, PR #1615) that should facilitate auto-generation of release notes, so this may be the last hand-written release note, organized by committer. From now on, I believe they'll be organized by type (new features, bug-fixes, CI changes, etc.).
Also, this is the last release with tag and release title formatted as just f"{version}"; starting with the next one, the tag name with be f"v{version}" and the release title will be f"Version {version}".
