* Changes
* `jax.jit` takes `donate_argnames` as an argument. It's semantics are similar
to `static_argnames`.
If neither donate_argnums nor donate_argnames is provided, no
arguments are donated. If donate_argnums is not provided but
donate_argnames is, or vice versa, JAX uses
`inspect.signature(fun)` to find any positional arguments that
correspond to donate_argnames (or vice versa). If both donate_argnums and donate_argnames are provided, inspect.signature is not used, and only actual
parameters listed in either donate_argnums or donate_argnames will
be donated.
* {func}`jax.random.gamma` has been re-factored to a more efficient algorithm
with more robust endpoint behavior ({jax-issue}`16779`). This means that the
sequence of values returned for a given `key` will change between JAX v0.4.13
and v0.4.14 for `gamma` and related samplers (including {func}`jax.random.ball`,
{func}`jax.random.beta`, {func}`jax.random.chisquare`, {func}`jax.random.dirichlet`,
{func}`jax.random.generalized_normal`, {func}`jax.random.loggamma`, {func}`jax.random.t`).
* Deletions
* `in_axis_resources` and `out_axis_resources` have been deleted from pjit since
it has been more than 3 months since their deprecation. Please use
`in_shardings` and `out_shardings` as the replacement.
This is a safe and trivial name replacement. It does not change any of the
current pjit semantics and doesn't break any code.
You can still pass in `PartitionSpecs` to in_shardings and out_shardings.
* Deprecations
* Python 3.8 support has been dropped as per
https://jax.readthedocs.io/en/latest/deprecation.html
* JAX now requires NumPy 1.22 or newer as per
https://jax.readthedocs.io/en/latest/deprecation.html
* Passing optional arguments to {func}`jax.numpy.ndarray.at` by position is
no longer supported, after being deprecated in JAX version 0.4.7.
For example, instead of `x.at[i].get(True)`, use `x.at[i].get(indices_are_sorted=True)`
* The following `jax.Array` methods have been removed, after being deprecated
in JAX v0.4.5:
* `jax.Array.broadcast`: use {func}`jax.lax.broadcast` instead.
* `jax.Array.broadcast_in_dim`: use {func}`jax.lax.broadcast_in_dim` instead.
* `jax.Array.split`: use {func}`jax.numpy.split` instead.
* The following APIs have been removed after previous deprecation:
* `jax.ad`: use {mod}`jax.interpreters.ad`.
* `jax.curry`: use ``curry = lambda f: partial(partial, f)``.
* `jax.partial_eval`: use {mod}`jax.interpreters.partial_eval`.
* `jax.pxla`: use {mod}`jax.interpreters.pxla`.
* `jax.xla`: use {mod}`jax.interpreters.xla`.
* `jax.ShapedArray`: use {class}`jax.core.ShapedArray`.
* `jax.interpreters.pxla.device_put`: use {func}`jax.device_put`.
* `jax.interpreters.pxla.make_sharded_device_array`: use {func}`jax.make_array_from_single_device_arrays`.
* `jax.interpreters.pxla.ShardedDeviceArray`: use {class}`jax.Array`.
* `jax.numpy.DeviceArray`: use {class}`jax.Array`.
* `jax.stages.Compiled.compiler_ir`: use {func}`jax.stages.Compiled.as_text`.
* Breaking changes
* JAX now requires ml_dtypes version 0.2.0 or newer.
* To fix a corner case, calls to {func}`jax.lax.cond` with five
arguments will always resolve to the "common operands" `cond`
behavior (as documented) if the second and third arguments are
callable, even if other operands are callable as well. See
[16413](https://github.com/google/jax/issues/16413).
* The deprecated config options `jax_array` and `jax_jit_pjit_api_merge`,
which did nothing, have been removed. These options have been true by
default for many releases.
* New features
* JAX now supports a configuration flag --jax_serialization_version
and a JAX_SERIALIZATION_VERSION environment variable to control the
serialization version ({jax-issue}`16746`).
* jax2tf in presence of shape polymorphism now generates code that checks
certain shape constraints, if the serialization version is at least 7.
See https://github.com/google/jax/blob/main/jax/experimental/jax2tf/README.md#errors-in-presence-of-shape-polymorphism.
jaxlib 0.4.14 (July 27, 2023)
* Deprecations
* Python 3.8 support has been dropped as per
https://jax.readthedocs.io/en/latest/deprecation.html