# MAX Nightly 26.7.0.dev2026102205 (Mojo 1.2.0.dev2026102205) Released

**URL:** <https://forum.modular.com/t/max-nightly-26-7-0-dev2026102205-mojo-1-2-0-dev2026102205-released/3577>\
**Category:** Nightly\
**Created:** [October 22, 2026, 7:54am UTC](https://forum.modular.com/t/max-nightly-26-7-0-dev2026102205-mojo-1-2-0-dev2026102205-released/3577 "2026-10-22T07:54:37Z")\
**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:** [October 22, 2026, 7:54am UTC](https://forum.modular.com/t/max-nightly-26-7-0-dev2026102205-mojo-1-2-0-dev2026102205-released/3577/1 "2026-10-22T07:54:37Z")

</div>

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

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

MAX changelog updates:

- InternVL and Gemma 3 multimodal models now return log probabilities, so  
`logprobs` in `max serve` and `output_logprobs` in `generate()` work for  
them.

- `/v1/completions` now returns a 400 error for `echo` with `logprobs` on a  
server started without `--enable-echo`, when the model computes log  
probabilities. The request used to crash the model worker. Other models  
still return no log probabilities, and `echo` without `logprobs` has no  
effect.

- MAX Serve’s span attributes now sit under the entity they describe:  
`max.request_id` is now `max.request.id`, `max.batch_id` is `max.batch.id`,  
and the other request and batch attributes move under `max.request.*` and  
`max.batch.*`. `kernel_agg:<name>` spans carry the kernel name in  
`max.kernel.op` instead of `max.kernel.name`; per-kernel spans keep  
`max.kernel.name`. Update trace queries that filter on the old names.

- `max.nn.Transformer`, `DistributedTransformer`, `logits_postprocess()` and  
`distributed_logits_postprocess()` return a  
`max.nn.graph_groups.DecoderOutputs` of named groups instead of a tuple.  
Read the logits as  
`outputs.logits["logits"]` rather than `outputs[1]`, and pass the outputs to  
`Graph.output(outputs)` rather than unpacking them. The graph’s outputs keep  
their order, and `Graph.output_tree` returns them by name.

- `ops.matmul()` takes an `out_dtype` keyword argument that sets the result  
dtype. The inputs keep their own dtypes and are no longer cast to a common  
one, so `bfloat16` inputs with `out_dtype=DType.float32` keep the float32  
accumulator. Without `out_dtype`, `ops.matmul()`, the `@` operator and  
`max.experimental.functional`’s `matmul()` require both inputs to share a  
dtype, which the result keeps, so `max.nn.Linear` raises when its input and  
weight dtypes differ.  
`max.experimental.nn.Linear` casts its input to the weight’s dtype, so a  
float32 input to a bfloat16 `Linear` now gives bfloat16 instead of float32.

- Removed the `blocking_sync`, `disable_timing` and `interprocess` parameters  
from the Mojo `DeviceContext.create_event()`, along with `EventFlags`. Events  
never record timing; use `DeviceContext.execution_time()` to time kernels.

Mojo changelog updates:

- [stdlib] Move AMD-only intrinsics to `max.gpu.intrinsics`
- [mojo-compiler][stdlib] Deprecate `@explicit_destroy` on structs
- [mojo-lang][stdlib] Remove the legacy kernel capture ABI (#105477)
- [stdlib] Add an owning FileDescriptor type
- [mojo-lang][stdlib] Remove legacy closures (#105361)
- [mojo-lang] Fix import leaks from precompiled packages
- [stdlib] stabilize some more list methods.
- [stdlib] Fix the `SIMD.slice` fast-path offset check

Raw MAX diff: [https://github.com/modular/modular/compare/a1ccd09545970f73bd33527ef027d445b6ad0980...c783ebd98c26aa012cee07ecee96de212f19f22e](https://github.com/modular/modular/compare/a1ccd09545970f73bd33527ef027d445b6ad0980...c783ebd98c26aa012cee07ecee96de212f19f22e)  
Current Mojo changelog: [https://github.com/modular/modular/blob/main/Mojo/docs/site/nightly-changelog.md](https://github.com/modular/modular/blob/main/Mojo/docs/site/nightly-changelog.md)