Who contributed to Google on May 26, 2026?

3 developers shipped this update, including copybara-service[bot], suztomo, and parthea.

What were the notable Google updates?

[pallas] Fix Pallas Mosaic 64-bit mode loop indexing, Update XLA dependency to use revision http://github.com/openxla/xla/commit/93f41f404fa2e38df46cd8cf8220613ca5182c48, and chore: update librarian to v0.14.1-0.20260522151051-433d9e6211ad.

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The Wire · Showcase

JAX FIXES 64-BIT MOSAIC LOOP INDEXING, GOOGLE CLOUD PYTHON REFRESHES LIBRARIAN

By RepoJournal · Filed 06:03 UTC on May 26, 2026 · About Google

3 people shipped this

copybara-service[bot] @copybara-service[bot] 1 cited

suztomo @suztomo 1 cited

parthea @parthea 1 cited

Pallas Mosaic now runs reliably in 64-bit mode after a critical type mismatch fix that was blocking pipeline operations.

JAX shipped a fix for Pallas Mosaic's 64-bit mode that resolves a type promotion bug in pipeline loops [1]. The error occurred when operations got promoted to 64-bit inside the loop, causing arith.cmpi operations to fail due to mismatched operand types. This lands alongside an XLA dependency bump [2] that keeps JAX's compiler foundation current. On the Cloud Python side, google-cloud-python updated Librarian to v0.14.1 [3], the code generation tool that produces the SDK's client libraries. The same team simultaneously refactored template generation to eliminate duplication [4], reducing the surface area for maintenance debt. These are housekeeping moves, but they clear the way for cleaner API surface generation and fewer template variants to keep in sync.

Action items

→ Pull JAX main to pick up the Mosaic 64-bit fix if you're using Pallas for on-device compilation google/jax [plan]
→ Monitor google-cloud-python for the Librarian refresh to land in your next release cycle googleapis/google-cloud-python [monitor]

References

[1] [pallas] Fix Pallas Mosaic 64-bit mode loop indexing ↗ google/jax
[2] Update XLA dependency to use revision http://github.com/openxla/xla/commit/93f41f404fa2e38df46cd8cf8220613ca5182c48 google/jax
[3] chore: update librarian to v0.14.1-0.20260522151051-433d9e6211ad ↗ googleapis/google-cloud-python
[4] chore: refactor templates to reduce duplication ↗ googleapis/google-cloud-python

Quick answers

What shipped in Google on May 26, 2026?: Pallas Mosaic now runs reliably in 64-bit mode after a critical type mismatch fix that was blocking pipeline operations. In total, 4 commits and 3 pull requests landed.
Who contributed to Google on May 26, 2026?: 3 developers shipped this update, including copybara-service[bot], suztomo, and parthea.
What were the notable Google updates?: [pallas] Fix Pallas Mosaic 64-bit mode loop indexing, Update XLA dependency to use revision http://github.com/openxla/xla/commit/93f41f404fa2e38df46cd8cf8220613ca5182c48, and chore: update librarian to v0.14.1-0.20260522151051-433d9e6211ad.

JAX FIXES REMAT3 CONSTANT HANDLING CRASH, GOOGLE CLOUD PYTHON CENTRALIZES REST TRANSCODING

Matthew Johnson patched a critical remat3 regression where closed-over constants were silently dropped, causing immediate crashes in production rematerialization pipelines [ref:1].

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