MAX Nightly 26.3.0.dev2026042305 Released

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

See the quickstart guide for installation instructions: Quickstart | Modular

MAX changelog updates:

  • Rewrote the eager-interpreter mo.mutable.store.slice handler to write
    slices via a device-side Mojo kernel instead of a host numpy round-trip.
    GPU buffers no longer full-buffer D→H→D on every call, and bfloat16
    and float8_* dtypes are now supported. float4_e2m1fn remains
    unsupported.

Mojo changelog updates:

  • [mojo-stdlib] Finish migrating Variadic+Type|ParameterList
  • [MojoLang] Use NoneType for literal constructor marker
  • [mojo-lang] Allow t-strings in comptime assert messages

Raw MAX diff: https://github.com/modular/modular/compare/2a565f764fbe2928cb8a9213fb3d606bc28340f5...bd9bdd3cfa8a69d53a9a28919d48f65ab63ca1ce)>
Current Mojo changelog: https://github.com/modular/modular/blob/main/mojo/docs/nightly-changelog.md