MAX Nightly 26.4.0.dev2026060306 (Mojo 1.0.0b2.dev2026060306) Released

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

See the quickstart guide for installation instructions: Quickstart | Modular

MAX changelog updates:

  • Removed multi-step decode from the text-generation pipelines. The flag
    --max-num-steps no longer works.

  • The serving benchmark entrypoint (benchmark_serving) now defaults --seed
    to a fixed value instead of drawing a fresh random seed on each run. The seed
    drives the workload generator (input/output lengths, session structure,
    content), so a fixed default makes repeated and scheduled runs reproducible
    and keeps run-to-run deltas reflecting the change under test rather than
    workload-draw variance. To opt back into a fresh seed, pass --seed none on
    the CLI (or seed: null in a workload/config YAML); the drawn seed is logged
    and recorded with the results so the run stays reproducible after the fact.

Mojo changelog updates:

Raw MAX diff: https://github.com/modular/modular/compare/26d47109e3f682b7b496715945d77f22255e8759...7aa053560034c8c5b4f9acb0a5b450e79d2f7c18)>
Current Mojo changelog: https://github.com/modular/modular/blob/main/mojo/docs/nightly-changelog.md