MAX Nightly 26.3.0.dev2026041805 Released

:astronaut: A new nightly version has been released! :astronaut:

See the quickstart guide for installation instructions: Quickstart | Modular

MAX changelog updates:

  • Moved partial_simd_load and partial_simd_store from
    buffer.buffer to linalg.utils and removed the buffer package. Update
    imports from from buffer.buffer import ... to
    from linalg.utils import ....

:hammer_and_wrench: Fixed {#26-3-fixed}

  • Fixed enqueue_fill() taking O(N) HIP API calls for float64 buffers on
    AMD GPUs when the high and low 32-bit halves of the fill value differ (e.g.,
    2.0), reducing the call count to O(log N).
    (Issue #6417)

Mojo changelog updates:

  • [stdlib] Add Defaultable conditional conformance for Tuple
  • [stdlib] Fix Process.run() env inheritance
  • [stdlib] Rename Consistency to Ordering in std.atomic
  • [stdlib] Fix libpython find for free-threaded

Raw MAX diff: https://github.com/modular/modular/compare/870957719ce8d513441cdb082c967b997288634f...712229e379a33e88407e824b8c40c31a95581d0d)>
Current Mojo changelog: https://github.com/modular/modular/blob/main/mojo/docs/nightly-changelog.md