MAX Nightly 26.3.0.dev2026041520 Released

Nightly
1

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

See the quickstart guide for installation instructions: Quickstart | Modular

MAX changelog updates:

  • Added sweep benchmarking capabilities to max benchmark: iterate over
    multiple concurrency and request-rate combinations, flush the prefix cache
    between runs, and collect per-run structured JSON results.

  • Added distributed.reducescatter.sum op handler to the eager interpreter,
    enabling multi-GPU eager execution of reduce-scatter collectives without
    falling back to compilation.

  • Added distributed_reducescatter_sum collective to distributed_functional
    for hardware-accelerated reduce-and-scatter tensor distribution.

Mojo changelog updates:

  • [stdlib] Add Optional map and and_then methods
  • [mojo-lang] Enable autoparam of variadic pack type lists.

Raw MAX diff: https://github.com/modular/modular/compare/e577554d7cb2e7c625726774f8889ce58392be85...f4029ad957aa9b5993862197ae66d87de1ae2e96)>
Current Mojo changelog: https://github.com/modular/modular/blob/main/mojo/docs/nightly-changelog.md