Version 2.6.9

New features

• feat: Add to_cudf by @martindurant in #3051
• feat: to/from PyTorch Tensor by @maxymnaumchyk in #3259

Bug-fixes and performance

• perf: avoid inflating UnmaskedArrays in broadcasting when you can by @jpivarski in #3254
• fix: TypeError fix for can_cast by @ianna in #3255
• fix: ListArray slicing on GPU by @ianna in #3248
• fix: ak.typetracer.length_one_if_typetracer with option and union types by @jpivarski in #3266

Other

• docs: add ariostas as a contributor for code by @allcontributors in #3240
• docs: add maxymnaumchyk as a contributor for code by @allcontributors in #3241
• docs: pybind11 demo project should have NumPy own the data by @jpivarski in #3261
• ci: use official GHA for uv by @henryiii in #3269
• ci: restore Windows 32-bit wheels by @henryiii in #3268
• chore: update RapidJSON by @tacaswell in #3249
• chore: update affiliation in CITATION.cff by @ManasviGoyal in #3251
• chore(deps): bump the actions group across 1 directory with 3 updates by @dependabot in #3260
• chore: update pre-commit hooks by @pre-commit-ci in #3245

New Contributors

• @tacaswell made their first contribution in #3249

Full Changelog: v2.6.8...v2.6.9

Version 2.6.8

New features

• feat: Add ak.array_equal by @tcawlfield in #3215
• feat: to TensorFlow RaggedTensor by @maxymnaumchyk in #3210
• feat: provide a way for Form.select_columns to distinguish structural dots from dots in the names of record fields by @tcawlfield in #3222

Bug-fixes and performance

• fix: 2881 akconcatenate fails trying to concatenate too many nested arrays by @tcawlfield in #3207
• fix: adjust checks in ForthMachine to prevent segfault when num_items is negative by @ariostas in #3209
• fix: generalize Index.ptr by @jpivarski in #3206
• fix: add ak.array_equal to NEP18 overrides, documentation, and add one more test by @tcawlfield in #3225
• fix: cuda max reducer bugfix and more tests by @ianna in #3228
• fix: empty arrays in ak.to_parquet with extensionarray=True by @jpivarski in #3234
• fix: GPU complex reducer prod for empty lists by @ianna in #3235

Other

• test: loosen message on test_2757 due to upstream Cython changes by @jpivarski in #3224
• style: fix documentation by @maxymnaumchyk in #3227
• ci: add 3.13 wheels by @henryiii in #3217
• chore: update pre-commit hooks by @pre-commit-ci in #3204
• chore(deps): bump the actions group across 1 directory with 3 updates by @dependabot in #3233

New Contributors

• @ariostas made their first contribution in #3209
• @maxymnaumchyk made their first contribution in #3210

Full Changelog: v2.6.7...v2.6.8

Version 2.6.7

New features

• feat: combinations kernels by @ManasviGoyal in #3150
• feat: complex reducers by @ManasviGoyal in #3149

Bug-fixes and performance

• fix: use classic linker with AppleClang 15+ by @henryiii in #3167
• fix: unexpected behaviour of akwhere with arrays containing nones by @tcawlfield in #3168
• fix: out of bounds index access issue in argmin and argmax complex in CPU kernel by @ManasviGoyal in #3176
• fix: refine the implementation of copy_behaviors by @Saransh-cpp in #3177
• fix: ak.to_parquet for a record-like non-Record by @jpivarski in #3175
• fix: proposal for #2947 by @maxgalli in #3191
• fix: requesting layout.form should not touch shape by @jpivarski in #3189
• fix: issue #3118 and #3185 by @pfackeldey in #3193
• fix: change np.integer to numbers.Integral by @maxgalli in #3195

Other

• ci: fix incorrect SDist name by @henryiii in #3201
• docs: add maxgalli as a contributor for code by @allcontributors in #3198
• docs: add pfackeldey as a contributor for code by @allcontributors in #3199
• chore(deps): bump the actions group across 1 directory with 4 updates by @dependabot in #3184
• chore: update pre-commit hooks by @pre-commit-ci in #3172
• chore(deps): bump docker/setup-qemu-action from 3.1.0 to 3.2.0 in the actions group across 1 directory by @dependabot in #3190

New Contributors

• @maxgalli made their first contribution in #3191
• @pfackeldey made their first contribution in #3193

Full Changelog: v2.6.6...v2.6.7

Version 2.6.6

New features

• feat: add slicing CUDA kernels by @ManasviGoyal in #3140
• feat: add some misc CUDA kernels by @ManasviGoyal in #3141
• feat: Adding awkward.semipublic submodule by @tcawlfield in #3152
• feat: 3154 from_parquet should be able to read partial columns by @tcawlfield in #3156
• feat: add reduce kernels by @ManasviGoyal in #3136
• feat: copy_behaviors to make sub-classing easy by @Saransh-cpp in #3137

Bug-fixes and performance

• fix: use grid-stride looping for kernels with variable-length loops by @ManasviGoyal in #3130
• fix: don't let CuPy iterate over Index with Python for loops by @jpivarski in #3142
• fix: correct dtypes for numpy v2 by @ianna in #3159
• fix: ak.from_numpy should fail on zero-dimensional arrays. by @tcawlfield in #3161

Other

• test: reducer CUDA kernel tests by @ManasviGoyal in #3162
• ci: Ensure attestations for awkward-cpp sdist and wheels by @matthewfeickert in #3135
• ci: faster wheel builds by @henryiii in #3146
• chore: update pre-commit hooks by @pre-commit-ci in #3139
• chore(deps): bump the actions group across 1 directory with 3 updates by @dependabot in #3153
• chore: trying atomics and tree reduction for CUDA reducer kernels by @ManasviGoyal in #3123
• chore: update pre-commit hooks by @pre-commit-ci in #3145

Full Changelog: v2.6.5...v2.6.6

Version 2.6.5

New features

• feat: 2772 pyarrow doesnt permit selective reading with extensionarray by @tcawlfield in #3127

Bug-fixes and performance

• fix: skip failing test when jax is not installed by @ianna in #3112
• fix: skip tests that require pyarrow when it is not installed by @ianna in #3114
• fix: generate array view by @ianna in #3115
• fix: Header-only fix is_valid for empty Indexed or IndexedOption by @zonca in #3120
• fix: wait for Jitify performing a one-time only warm-up by @ianna in #3113
• fix: prevent exponential memory growth in UnionArray by @jpivarski in #3119

Other

• ci: Add GitHub artifact attestations to package distribution by @matthewfeickert in #3126
• chore: update pre-commit hooks by @pre-commit-ci in #3106
• chore: update RapidJSON by @jpivarski in #3110
• chore: pin pyarrow to 16.0.0 by @ianna in #3124
• chore: update pre-commit hooks by @pre-commit-ci in #3117
• chore(deps): bump the actions group across 1 directory with 2 updates by @dependabot in #3125

Full Changelog: v2.6.4...v2.6.5

Version 2.6.4

New features

• feat: TypeTracerReport.data_touched_in should ignore unrecognized node_ids by @jpivarski in #3074
• feat: better error message for missing dispatch by @jpivarski in #3078
• feat: add boolean cases for CPU kernels by @ManasviGoyal in #3059
• feat: add ak.flatten and ak.concatenate kernels by @ManasviGoyal in #3086

Bug-fixes and performance

• fix: restrict ak.softmax to axis=-1, the only axis for which the calculation is correct right now by @jpivarski in #3072
• fix: Numpy 2.0 out of bounds error for BitMaskedArray Py kernels by @ManasviGoyal in #3073
• fix: _is_getitem_at_placeholder logic was backward for UnionArray by @jpivarski in #3083
• fix: refuse dak.Array in hidden-but-public-functions by @jpivarski in #3079
• fix: PyPy segfault may be related to using out-of-scope array by @jpivarski in #3093
• fix: distributed rdataframe is not yet support by @ianna in #3087
• fix: support conversion to arrow and back with non-option Unknown type by @tcawlfield in #3085
• fix: intermittent segfault in PyPy by @ianna in #3089
• fix: is_valid checks in header-only library by @zonca in #3091
• fix: UnmaskedArray was missing its _nextcarry_outindex by @jpivarski in #3097

Other

• test: cuda integration tests by @ManasviGoyal in #3065
• ci: macos-latest is changing to macos-14 ARM runners by @henryiii in #3092
• docs: new Try-It page based on plain Pyodide by @jpivarski in #3058
• docs: Add installation of nightly wheels instructions by @matthewfeickert in #3080
• docs: revamp documentation by @jpivarski in #3076
• chore: update pre-commit hooks by @pre-commit-ci in #3075
• chore: update pre-commit hooks by @pre-commit-ci in #3082
• chore: update pre-commit hooks by @pre-commit-ci in #3090
• chore: update pre-commit hooks by @pre-commit-ci in #3096
• chore(deps): bump amannn/action-semantic-pull-request from 5.4.0 to 5.5.2 in the actions group by @dependabot in #3095

Full Changelog: v2.6.3...v2.6.4

Version 2.6.3

This is the first release of Awkward Array that is compatible with NumPy 2.0.

New features

• feat!: printing a typetracer array should not touch it by @jpivarski in #3019
• feat: add to_parquet_dataset function by @zbilodea in #2898
• feat: adding support for numpy.real, imag, round, angle, by @tcawlfield in #3053
• feat: add miscellaneous CUDA kernels by @ManasviGoyal in #3021
• feat: add dask_tokenize hook by @lgray in #3017
• feat: added a commit method on TypeTracerReport to identify touched buffers in the Dask DAG-building pass by @jpivarski in #3043
• feat: Allow interoperability with numpy 2.x by @tcawlfield in #3064

Bug-fixes and performance

• fix: return ufunc as it is for user defined vectorized funcs by @Saransh-cpp in #3025
• fix: Support structured arrays in option type to_numpy by @zonca in #3060
• fix: Windows and 32-bit Linux default to 32-bit integers in sums and prods UNLESS it's NumPy 2.0 by @jpivarski in #3068
• perf: add a flag to turn off isinstance in TypeTracerArray._new by @jpivarski in #3054

Other

• test: TEMPORARY edits to get tests working for all PRs: NumPy 2.0 cap and turned off Try-It by @jpivarski in #3057
• test: new cuda kernels by @ManasviGoyal in #2922
• ci: Make wheel building workflow reusable by @matthewfeickert in #3016
• docs: fix styling of icons by @agoose77 in #3042
• docs: add a link to documentation of AwkwardArray in Julia by @ianna in #3052
• docs: add tcawlfield as a contributor for code by @allcontributors in #3067
• chore: keeping CONTRIBUTING.md up to date (take 1) by @jpivarski in #3038
• chore(deps): bump the actions group with 3 updates by @dependabot in #3048
• chore: update pre-commit hooks by @pre-commit-ci in #3050
• chore: update pre-commit hooks by @pre-commit-ci in #3063
• chore: update pre-commit hooks by @pre-commit-ci in #3069

New Contributors

• @tcawlfield made their first contribution in #3053

Full Changelog: v2.6.2...v2.6.3

Version 2.6.3rc2

New features

• feat!: printing a typetracer array should not touch it by @jpivarski in #3019
• feat: add to_parquet_dataset function by @zbilodea in #2898
• feat: adding support for numpy.real, imag, round, angle, by @tcawlfield in #3053
• feat: add miscellaneous CUDA kernels by @ManasviGoyal in #3021
• feat: add dask_tokenize hook by @lgray in #3017
• feat: added a commit method on TypeTracerReport to identify touched buffers in the Dask DAG-building pass by @jpivarski in #3043

Bug-fixes and performance

• fix: return ufunc as it is for user defined vectorized funcs by @Saransh-cpp in #3025
• perf: add a flag to turn off isinstance in TypeTracerArray._new by @jpivarski in #3054

Other

• docs: fix styling of icons by @agoose77 in #3042
• docs: add a link to documentation of AwkwardArray in Julia by @ianna in #3052
• ci: Make wheel building workflow reusable by @matthewfeickert in #3016
• test: TEMPORARY edits to get tests working for all PRs: NumPy 2.0 cap and turned off Try-It by @jpivarski in #3057
• chore: keeping CONTRIBUTING.md up to date (take 1) by @jpivarski in #3038
• chore(deps): bump the actions group with 3 updates by @dependabot in #3048
• chore: update pre-commit hooks by @pre-commit-ci in #3050

New Contributors

• @tcawlfield made their first contribution in #3053

Full Changelog: v2.6.2...v2.6.3rc2

Version 2.6.3rc1

The main purpose of this release is to make sure that the deployment machinery still works, now that the PYPI_PASSWORD had to be replaced.

New features

• feat!: printing a typetracer array should not touch it by @jpivarski in #3019
• feat: add to_parquet_dataset function by @zbilodea in #2898
• feat: adding support for numpy.real, imag, round, angle, by @tcawlfield in #3053

Bug-fixes and performance

• fix: return ufunc as it is for user defined vectorized funcs by @Saransh-cpp in #3025

Other

• docs: fix styling of icons by @agoose77 in #3042
• docs: add a link to documentation of AwkwardArray in Julia by @ianna in #3052
• ci: Make wheel building workflow reusable by @matthewfeickert in #3016
• test: TEMPORARY edits to get tests working for all PRs: NumPy 2.0 cap and turned off Try-It by @jpivarski in #3057
• chore: keeping CONTRIBUTING.md up to date (take 1) by @jpivarski in #3038
• chore(deps): bump the actions group with 3 updates by @dependabot in #3048
• chore: update pre-commit hooks by @pre-commit-ci in #3050

New Contributors

• @tcawlfield made their first contribution in #3053

Full Changelog: v2.6.2...v2.6.3rc1

Version 2.6.2

New features

• feat: add CUDA kernels that calculate length/sum by @ManasviGoyal in #2992
• feat: add variable length loop kernels by @ManasviGoyal in #3003
• feat: make ak.mean and ak.count differentiable by @Saransh-cpp in #3020

Bug-fixes and performance

• fix: remove redundant(?) Jax.is_tracer_type check in _layout by @Saransh-cpp in #3013
• fix: throw more meaningful error message for non-NumPy buffers by @agoose77 in #3026
• fix: proper typetracer array slicing in BitMaskedArray by @agoose77 in #3028
• fix: ak.flatten on BitMaskedArray by @agoose77 in #3034
• fix: performance of ufunc resolution for non-nominal signatures by @agoose77 in #3030

Other

• test: update tests-cuda to use 'ByteMaskedArray.simplified' by @jpivarski in #3024
• ci: Add nightly upload of wheels to Anaconda Cloud by @matthewfeickert in #3012
• ci: Update scientific-python/upload-nightly-action from 0.3.0 to 0.4.0 by @matthewfeickert in #3031
• ci: Upload nightly wheels to scientific-python-nightly-wheels org by @matthewfeickert in #3032
• chore: update pre-commit hooks by @pre-commit-ci in #3005
• chore: fix ruff warnings by @agoose77 in #3010
• chore: update pre-commit hooks by @pre-commit-ci in #3022
• chore: figuring out how to implement ak.from_cudf by @jpivarski in #3027
• chore: update pre-commit hooks by @pre-commit-ci in #3029
• chore(deps): bump the actions group with 1 update by @dependabot in #3035
• chore(deps): bump the actions group with 2 updates by @dependabot in #3037

Full Changelog: v2.6.1...v2.6.2