Use libtpu releases rather than libtpu-nightly for jax[tpu].

PiperOrigin-RevId: 688632409

Author: hawkinsp

.github/workflows/cloud-tpu-ci-nightly.yml

@@ -50,23 +50,23 @@ jobs:
           pip install -U -r build/collect-profile-requirements.txt
       - name: Install JAX
         run: |
-          pip uninstall -y jax jaxlib libtpu-nightly
+          pip uninstall -y jax jaxlib libtpu
           if [ "${{ matrix.jaxlib-version }}" == "pypi_latest" ]; then
             pip install .[tpu] \
               -f https://storage.googleapis.com/jax-releases/libtpu_releases.html
 
           elif [ "${{ matrix.jaxlib-version }}" == "nightly" ]; then
             pip install --pre . -f https://storage.googleapis.com/jax-releases/jax_nightly_releases.html
-            pip install --pre libtpu-nightly \
+            pip install --pre libtpu \
               -f https://storage.googleapis.com/jax-releases/libtpu_releases.html
             pip install requests
 
           elif [ "${{ matrix.jaxlib-version }}" == "nightly+oldest_supported_libtpu" ]; then
             pip install --pre . -f https://storage.googleapis.com/jax-releases/jax_nightly_releases.html
+            # TODO(phawkins): switch to libtpu, when the oldest release we support is a libtpu release.
             pip install --pre libtpu-nightly==0.1.dev${{ env.LIBTPU_OLDEST_VERSION_DATE }} \
               -f https://storage.googleapis.com/jax-releases/libtpu_releases.html
             pip install requests
-
           else
             echo "Unknown jaxlib-version: ${{ matrix.jaxlib-version }}"
             exit 1

CHANGELOG.md

@@ -24,6 +24,10 @@ When releasing, please add the new-release-boilerplate to docs/pallas/CHANGELOG.
   * `jax.lax.FftType` was introduced as a public name for the enum of FFT
     operations. The semi-public API `jax.lib.xla_client.FftType` has been
     deprecated.
+  * TPU: JAX now installs TPU support from the `libtpu` package rather than
+    `libtpu-nightly`. For the next few releases JAX will pin an empty version of
+    `libtpu-nightly` as well as `libtpu` to ease the transition; that dependency
+    will be removed in Q1 2025.
 
 * Deprecations:
   * The semi-public API `jax.lib.xla_client.PaddingType` has been deprecated.

docs/installation.md

@@ -282,7 +282,7 @@ pip install -U --pre jax jaxlib -f https://storage.googleapis.com/jax-releases/j
 - Google Cloud TPU:
 
 ```bash
-pip install -U --pre jax jaxlib libtpu-nightly requests -f https://storage.googleapis.com/jax-releases/jax_nightly_releases.html -f https://storage.googleapis.com/jax-releases/libtpu_releases.html
+pip install -U --pre jax jaxlib libtpu requests -f https://storage.googleapis.com/jax-releases/jax_nightly_releases.html -f https://storage.googleapis.com/jax-releases/libtpu_releases.html
 ```
 
 - NVIDIA GPU (CUDA 12):

setup.py

@@ -22,7 +22,9 @@
 _current_jaxlib_version = '0.4.34'
 # The following should be updated after each new jaxlib release.
 _latest_jaxlib_version_on_pypi = '0.4.34'
-_libtpu_version = '0.1.dev20241002'
+
+_libtpu_version = '0.0.2'
+_libtpu_nightly_terminal_version = '0.1.dev20241010+nightly.cleanup'
 
 def load_version_module(pkg_path):
   spec = importlib.util.spec_from_file_location(
@@ -76,7 +78,9 @@ def load_version_module(pkg_path):
         # $ pip install jax[tpu] -f https://storage.googleapis.com/jax-releases/libtpu_releases.html
         'tpu': [
           f'jaxlib>={_current_jaxlib_version},<={_jax_version}',
-          f'libtpu-nightly=={_libtpu_version}',
+          # TODO(phawkins): remove the libtpu-nightly dependency in Q1 2025.
+          f'libtpu-nightly=={_libtpu_nightly_terminal_version}',
+          f'libtpu=={_libtpu_version}',
           'requests',  # necessary for jax.distributed.initialize
         ],