This document is relevant for: Inf1, Inf2, Trn1, Trn2, Trn3

AWS Neuron SDK Release Notes#

Last updated: February 26, 2026

Current Release Notes#

This is the official home page for the AWS Neuron SDK release notes. Release notes are provided whenever AWS and Annapurna labs releases a new version of the Neuron SDK. Select a release version and review what it brings to you!

Latest AWS Neuron SDK release: 2.28.0

On 02/26/2026, AWS released version 2.28.0 of the Neuron SDK.

For more details, select this card and browse the release notes.

Neuron Component Release Notes#

Each Neuron component has specific release notes across Neuron versions.

Component	Updated in Neuron Version	Latest Component Version
Neuron Compiler	2.27.0	2.15.54.0
Neuron Containers	2.28.0	2.28.0
Neuron Developer Tools	2.28.0	2.28.0
Neuron DLAMI	2.28.0	2.28.0
JAX NeuronX	2.26.0	0.6.2.1.0.*
NKI Library	2.28.0	2.28.0
Neuron Kernel Interface	2.28.0	Beta 2 (0.2.0)
NxD Core	2.26.0	0.15.22259
NxD Inference	2.28.0	0.8.16251
NxD Training	2.25.0	1.5.0
PyTorch Neuron Framework (torch-neuronx)	2.28.0	2.28.0
Neuron Runtime	2.27.0	2.29.40.0

Previous AWS Neuron SDK releases#

Release notes for prior versions from the past 12 months.

Neuron version	Date released
2.27.1	01/14/26
2.27.0	12/19/25
2.26.1	10/29/25
2.26.0	09/18/25
2.25.0	07/31/25
2.24.1	06/30/25
2.24.0	06/24/25
2.23.0	06/10/25
2.22.1	05/12/25
2.22.0	04/03/25
2.21.1	01/14/25
2.21.0 Beta	12/03/24

Note

The AWS Neuron SDK is updated regularly with new versions. These releases follow a semantic versioning model of (major).(minor).(patch). major versions are more likely to introduce new features and breaking changes over a prior major version. minor versions add feature and API improvements and may introduce smaller breaking changes. patch versions typically provide bug fixes and will not have breaking changes.

Earlier Neuron component release notes#

For older components and features that have not been updated recently or are out of support, see Archived Neuron Component Release Notes.

Older Releases#

Release notes are archived when the major version of a release is incremented.