Who contributed to Google on September 21, 2026?

3 developers shipped this update, including copybara-service, Peter Hawkins, and jax authors.

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Sep 21, 2026

$ the-wire · showcase

JAX rewrites jnp.sinc for real inputs, tightens ULP bounds

By RepoJournal · Filed 06:57 UTC on September 21, 2026 · About Google · Composed from the cited sources · methodology

3 people shipped this

copybara-service @copybara-service 1 cited

jax authors @Google-ML-Automation 1 cited

Peter Hawkins @hawkinsp

JAX replaced the sinc evaluation for real inputs with additive range reduction, closing issue 5094 and documenting its accuracy bounds, in a day otherwise limited to an XLA revision bump.

Improve accuracy of real `jnp.sinc(x)` via additive range reduction. google/jax

by copybara-service

Real inputs no longer go through sin(pi * x) / (pi * x); the new path does exact additive range reduction (x = n + r, with n = round(x) and r = x - n in [-0.5, 0.5]) plus a Taylor polynomial in r^2. The ULP precision test in elementary_test.py was updated and the accuracy bounds written into docs/accuracy.md, so any test asserting the old tolerance on jnp.sinc will need to be revisited.

Update XLA dependency to use revision http://github.com/openxla/xla/commit/38c36e8aea4b473aa5fed228a92722c17ecd3b29 google/jax

by jax authors

XLA is pinned to revision 38c36e8aea4b473aa5fed228a92722c17ecd3b29. A routine bump, with no API surface described.

$ ls google/reviews/ # the step-back reads

the week in review JAX drops legacy IFRT device APIs, google-auth adds 3.15 the month in review JAX free-threading push reshapes 0.11.2 and 0.12 cleanup

Full archive → Weekly reviews →

Quick answers

What shipped in Google on September 21, 2026?: JAX replaced the sinc evaluation for real inputs with additive range reduction, closing issue 5094 and documenting its accuracy bounds, in a day otherwise limited to an XLA revision bump. In total, 2 commits and 1 pull requests landed.
Who contributed to Google on September 21, 2026?: 3 developers shipped this update, including copybara-service, Peter Hawkins, and jax authors.
What were the notable Google updates?: Improve accuracy of real `jnp.sinc(x)` via additive range reduction and Update XLA dependency to use revision http://github.com/openxla/xla/commit/38c36e8aea4b473aa5fed228a92722c17ecd3b29.

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$ log Google --recent

2026-10-04 JAX pins OpenXLA revision, disables overlap_test against older libtpu 5 shipped 2026-10-03 JAX adds type-2 and type-3 Hermitian eigensolves, lexsort batching cuts unique compile time 69 shipped 2026-10-02 JAX hijax flags read at call time, Spanner stops deleting multiplexed sessions 112 shipped 2026-10-01 Vertex AI client timeout fix, Compute v1 API regenerated 87 shipped

$ log --all # elsewhere on the wire

@vuejs 2026-10-04 Vue language tools stop calling registerHooks on buggy Node builds @openclaw 2026-10-04 OpenClaw's deslop sweep removes 1,000+ production lines

$ ls showcases/

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