Version 2.7.4

New features

• feat: add a non-touching ak.zip, called 'ak.zip_no_broadcast' by @pfackeldey in #3390

Bug-fixes and performance

(none!)

Other

• chore: update pre-commit hooks by @pre-commit-ci in #3389
• chore(deps): bump the actions group with 2 updates by @dependabot in #3388

Full Changelog: v2.7.3...v2.7.4

Version 2.7.3

New features

• feat: add pretty nbytes repr to .show and jupyter repr by @pfackeldey in #3348
• feat: improve error message when indexing placeholder arrays by @pfackeldey in #3353

Bug-fixes and performance

• perf: make the ak.Array.mask weakly dependent on the array itself by @pfackeldey in #3347
• perf: add caches to reduce python overhead by @pfackeldey in #3359
• fix: current failing jax tests for jax>=0.4.36 by @pfackeldey in #3340
• fix: placeholder arrays in record __repr__ by @pfackeldey in #3342
• fix: stacktraces for custom exception handling by @pfackeldey in #3343
• fix: control attrs better as described in issue #3277 by @pfackeldey in #3344
• fix: enforce string-only keys in .attrs by @pfackeldey in #3350
• fix: nbytes property of ak.Record by @pfackeldey in #3352
• fix: hash of HashableDict by @pfackeldey in #3355
• fix: datetime.datetime.utcfromtimestamp deprecation warning by @ianna in #3338
• fix: version check in to_cudf for API change by @martindurant in #3339
• fix: nbytes repr for typetracers with nbytes=unknown_length by @pfackeldey in #3361
• fix: update Chicago Taxi Dataset URL to Zenodo by @jpivarski in #3357
• fix: always check '.length' for 'unknown_length' by @jpivarski in #3332
• fix: _getitem_at_placeholder checks by @pfackeldey in #3368
• fix: resulting setitem layout type for ak.Record by @pfackeldey in #3372
• fix: change primitive_policy to allow converting Numpy arrays by @ianna in #3375
• fix: placeholder array repr with extra info by @pfackeldey in #3378
• fix: set allow_lazy to True to avoid touching potential placeholders by @pfackeldey in #3379
• fix: remove unsafe lru cache by @pfackeldey in #3384
• fix: test Pyodide with cibuildwheel and fix 32-bit issue by @henryiii in #3270

Other

• docs: add a performance tip to ak.transform docstring by @pfackeldey in #3369
• docs: add HavryliukAY as a contributor for code by @allcontributors in #3376
• refactor: propagate attrs & behavior with dict-like ak.Array input data by @pfackeldey in #3374
• refactor: simplify attrs & fix its pickability (for e.g. dask.distributed) by @pfackeldey in #3383
• ci: use native arm for wheels by @henryiii in #3381
• chore: remove WASM building in docs.yml by @jpivarski in #3333
• chore: use _util.native_to_byteorder function in ak.from_buffers by @pfackeldey in #3354
• chore: remove duplicate code by @pfackeldey in #3360
• chore: update pre-commit hooks by @pre-commit-ci in #3336
• chore(deps): bump the actions group across 1 directory with 3 updates by @dependabot in #3358
• chore: update pre-commit hooks by @pre-commit-ci in #3367
• chore(deps): bump docker/setup-qemu-action from 3.2.0 to 3.3.0 in the actions group by @dependabot in #3366
• chore: update pre-commit hooks by @pre-commit-ci in #3377
• chore: native Apple Silicon wheels by @henryiii in #3382
• chore: check if 32bit right broadcasting test pass again by @pfackeldey in #3386
• chore: reducing warnings by @henryiii in #3387
• chore: minor cleanup by @henryiii in #3385

Full Changelog: v2.7.2...v2.7.3

Version 2.7.2

This is the first version built with MacOS 13 instead of MacOS 12.

New features

• feat: Content.form_with_key_path() by @jpivarski in #3311
• feat: allow np.arrays in ak.full_like as fill_value by @pfackeldey in #3315

Bug-fixes and performance

• fix: sorting of record arrays without fields (ak.zip(tuple(...))) by @pfackeldey in #3314
• fix: concatenation of empty records by @pfackeldey in #3316
• fix: extend limit on number of regular arrays to concatenate by @ianna in #3312
• fix: typetracer lengths for optiontypes in 'ak.where' broadcastings by @pfackeldey in #3322
• fix: handle type tracer correctly in indexed option array flattening by @lgray in #3325
• fix: Upstream API changes in cuDF 24.10 by @jpivarski in #3328 (but actually by @martindurant; see #3309)

Other

• chore: update pre-commit hooks by @pre-commit-ci in #3319
• chore(deps): bump the actions group with 2 updates by @dependabot in #3318
• chore: upgrade macos-12 -> macos-13 by @jpivarski in #3327
• chore: update pre-commit hooks by @pre-commit-ci in #3323

Full Changelog: v2.7.1...v2.7.2

Version 2.7.1

New features

(none!)

Bug-fixes and performance

• fix: test from_raggedtensor on CUDA by @ianna in #3298
• fix: use None when ndims can't be inferred from a layout-like obj by @pfackeldey in #3299
• fix: ak.argcombinations should allow negative axis by @jpivarski in #3301
• fix: restrict named_axis inferring to ak.Arrays/ak.Records/ak.HighLevelContexts by default by @pfackeldey in #3304

Other

• chore: update pre-commit hooks by @pre-commit-ci in #3303
• chore: update pre-commit hooks by @pre-commit-ci in #3307
• chore(deps): bump the actions group across 1 directory with 3 updates by @dependabot in #3306

Full Changelog: v2.7.0...v2.7.1

Version 2.7.0

This release drops support for Python 3.8. The supported Python versions are now 3.9 through 3.13 (inclusive). Other than that, it does not differ from 2.6.10.

New features

(none!)

Bug-fixes and performance

(none!)

Other

• chore: remove Python 3.8, ensure Python 3.13 is included by @jpivarski in #3295

Full Changelog: v2.6.10...v2.7.0

Version 2.6.10

New features

• feat: named axis for ak.Array by @pfackeldey in #3238
• feat: to/from TensorFlow Tensor by @maxymnaumchyk in #3292
• feat: updated LayoutBuilder.h (added functors) for C++11 compatibility by @jpivarski in #3281

Bug-fixes and performance

• fix: make sure 'at' is a cupy zero dim array by @ianna in #3271
• fix: add cuda backend support for to_raggedtensor and from_raggedtensor functions by @maxymnaumchyk in #3263
• fix: test from_raggedtensor on GPU by @ianna in #3288
• fix: correct handling of keepdims and mask_identity for weighted mean by @nj-vs-vh in #3291

Other

• docs: add tacaswell as a contributor for maintenance by @allcontributors in #3273
• docs: add basnijholt as a contributor for maintenance by @allcontributors in #3287
• docs: add nj-vs-vh as a contributor for code by @allcontributors in #3293
• chore: update pre-commit hooks by @pre-commit-ci in #3275
• chore: delete .DS_Store and add it to .gitignore by @basnijholt in #3286
• chore(deps): bump the actions group across 1 directory with 2 updates by @dependabot in #3290
• test: add simple slice test to cuda by @martindurant in #3242
• chore: update pre-commit hooks by @pre-commit-ci in #3284
• chore: increase try-it version of Awkward to 2.6.4 by @jpivarski in #3279

New Contributors

• @basnijholt made their first contribution in #3286
• @nj-vs-vh made their first contribution in #3291

Full Changelog: v2.6.9...v2.6.10

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