# MAX Nightly 26.3.0.dev2026031305 Released

**URL:** https://forum.modular.com/t/max-nightly-26-3-0-dev2026031305-released/2841
**Category:** Nightly
**Created:** [March 13, 2026, 1:55pm UTC](https://forum.modular.com/t/max-nightly-26-3-0-dev2026031305-released/2841 "2026-03-13T13:55:50Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Modular](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/modular/32/17_2.png) [@Modular](https://forum.modular.com/u/Modular)
#### Post date: [March 13, 2026, 1:55pm UTC](https://forum.modular.com/t/max-nightly-26-3-0-dev2026031305-released/2841/1 "2026-03-13T13:55:50Z")

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🧑‍🚀 A new nightly version has been released! 🧑‍🚀

See the quickstart guide for installation instructions: [Quickstart | Modular](https://docs.modular.com/max/get-started/#set-up-your-project)

MAX changelog updates:

Mojo changelog updates:

- [mojo-lang] Redesign param-indexed getitem/getattr.
- [stdlib] Add `Hashable` conditional conformance to `Optional`
- [External] [stdlib] Require explicit byte= keyword for String/StringSlice span indexing (#79870)
- [stdlib] Fix GPU `perf_counter_ns` to return ns

Raw MAX diff: [https://github.com/modular/modular/compare/c2101b4895db6b8fad1ea26f78c670bbc2ab7da4...ffacc38557b840a9b6fc53db52cac25f02799d26](https://github.com/modular/modular/compare/c2101b4895db6b8fad1ea26f78c670bbc2ab7da4...ffacc38557b840a9b6fc53db52cac25f02799d26))\>  
Current Mojo changelog: [https://github.com/modular/modular/blob/main/mojo/docs/nightly-changelog.md](https://github.com/modular/modular/blob/main/mojo/docs/nightly-changelog.md)