# MAX Nightly 26.1.0.dev2025121305 Released

**URL:** <https://forum.modular.com/t/max-nightly-26-1-0-dev2025121305-released/2519>\
**Category:** Nightly\
**Created:** [December 13, 2025, 6:47am UTC](https://forum.modular.com/t/max-nightly-26-1-0-dev2025121305-released/2519 "2025-12-13T06:47:01Z")\
**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:** [December 13, 2025, 6:47am UTC](https://forum.modular.com/t/max-nightly-26-1-0-dev2025121305-released/2519/1 "2025-12-13T06:47:01Z")

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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:

- Removed the `custom_ops_path` parameter from  
`max.engine.InferenceSession. __init__ `.

Mojo changelog updates:

- [stdlib] feat: Change `Optional` and `Iterator.Element` to require only `T: Movable` (was `Copyable`) (Part 6/N)

Raw MAX diff: [https://github.com/modular/modular/compare/b02858b2c38ae43453c19e7429c07903a55508a7...c9f98078f276a87a5d16b8989a2da087980fe0a2](https://github.com/modular/modular/compare/b02858b2c38ae43453c19e7429c07903a55508a7...c9f98078f276a87a5d16b8989a2da087980fe0a2))\>  
Current Mojo changelog: [https://github.com/modular/modular/blob/main/mojo/docs/changelog.md](https://github.com/modular/modular/blob/main/mojo/docs/changelog.md)