$ cat google/week/2026-09-07.log
the week in review · Sep 7 – Sep 13, 2026
google-auth 2.58.0 adds aiohttp mTLS reconfiguration
By RepoJournal · composed from the cited sources · human-reviewed weekly · methodology
JAX removed two Pallas flags and a deprecated pltpu.HOST symbol, added log2 primitives, and bumped XLA.
google-auth: v2.58.0 googleapis/google-cloud-python
Version 2.58.0 of the auth library adds mTLS reconfiguration when a certificate mismatch occurs, and the matching async path aligns its behavior with the synchronous session by triggering reconfiguration. Teams using aiohttp-based credentials on Agent Identity workloads get the fix by upgrading from 2.57.1.
v2.23.0 googleapis/python-genai
python-genai 2.23.0 adds from_environment support for environment copying plus dynamic turn completion. Environment copying is the useful one for anyone standing up clients from ambient config rather than explicit arguments.
[pallas:mosaic] Removed the previously deprecated `pltpu.HOST` google/jax
The already-deprecated pltpu.HOST symbol is gone, alongside the MemorySpace.HOST removal earlier in the period. The removal notes state the deprecation was never pre-defined in jax/_src/deprecations.py, so any access to MemorySpace.HOST raised a ValueError rather than a migration message; the API compatibility window is past, so code touching either name must be updated.
[pallas:mgpu] Removed `jax_pallas_use_mosaic_gpu` google/jax
jax_pallas_use_mosaic_gpu is removed. It is no longer necessary because Mosaic GPU doesn't support pl.pallas_call, so the flag had nothing left to switch.
Add `jax.lax.log2` and primitive `jax.lax.log2_p`. google/jax
log2 becomes a first-class primitive alongside exp2, with log2_p and exp2_p wired into transformation rules, docs, and test harnesses. jax.numpy.log2 now lowers directly through jax.lax.log2, so code that composed log2 from other ops can use the primitive instead.
Add frozendict support to pytree for Python 3.15 (PEP 814). google/jax
With Python 3.15 introducing a built-in frozendict (PEP 814), JAX now registers it as a built-in pytree container in jaxlib/pytree.cc, matching dict behavior: keys sort as auxiliary data and values flatten as children. If you pass frozendicts through jit, this lands without a custom registration.
Update XLA dependency to use revision http://github.com/openxla/xla/commit/3e8c82faf8a5afe3583beed85503cc117adb89d9 google/jax
The XLA dependency moves to a newer OpenXLA revision. Routine for most users, but nightly builds and source installs should rebuild against the pinned commit.
[OneAPI GPU] Add OneAPI Solver getrf, syevd, heevd, and gesvd Kernels google/jax
OneAPI picks up solver kernels for getrf (LU decomposition, batched), syevd, heevd, and gesvd, extending GPU solver coverage beyond CUDA.
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