.. _neuron_release_notes:

.. meta::
   :description: The AWS Neuron SDK release notes home page. Current release version: 2.28.0.

AWS Neuron SDK Release Notes
============================

**Last updated**:  February 26, 2026

.. toctree::
    :maxdepth: 1
    :hidden:

    Neuron 2.28.0 </release-notes/2.28.0>
    Component release notes </release-notes/components/index>
    Release artifacts </release-notes/releasecontent>
    Previous versions </release-notes/prev/rn>

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!

.. grid:: 1
   :gutter: 3

   .. grid-item-card:: 
      :class-card: sd-border-2
      :link: /release-notes/2.28.0
      :link-type: doc

      **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. 

.. list-table::
   :widths: 40 30 30
   :header-rows: 1
   :align: left

   * - Component
     - Updated in Neuron Version
     - Latest Component Version
   * - :doc:`Neuron Compiler <components/compiler>`
     - 2.27.0
     - 2.15.54.0
   * - :doc:`Neuron Containers <components/containers>`
     - 2.28.0
     - 2.28.0
   * - :doc:`Neuron Developer Tools <components/dev-tools>`
     - 2.28.0
     - 2.28.0
   * - :doc:`Neuron DLAMI <components/dlamis>`
     - 2.28.0
     - 2.28.0
   * - :doc:`JAX NeuronX <components/jax>`
     - 2.26.0
     - 0.6.2.1.0.*
   * - :doc:`NKI Library <components/nki-lib>`
     - 2.28.0
     - 2.28.0
   * - :doc:`Neuron Kernel Interface <components/nki>`
     - 2.28.0
     - Beta 2 (0.2.0)
   * - :doc:`NxD Core <components/nxd-core>`
     - 2.26.0
     - 0.15.22259
   * - :doc:`NxD Inference <components/nxd-inference>`
     - 2.28.0
     - 0.8.16251
   * - :doc:`NxD Training <components/nxd-training>`
     - 2.25.0
     - 1.5.0
   * - :doc:`PyTorch Neuron Framework (torch-neuronx) <components/pytorch>`
     - 2.28.0
     - 2.28.0
   * - :doc:`Neuron Runtime <components/runtime>`
     - 2.27.0
     - 2.29.40.0
  
----

.. _previous-neuron-releases:

Previous AWS Neuron SDK releases
--------------------------------

Release notes for prior versions from the past 12 months.

.. list-table::
   :widths: auto
   :header-rows: 1
   :align: left

   * - Neuron version
     - Date released
   * - :doc:`2.27.1 <prev/2.27.1>`
     - 01/14/26
   * - :doc:`2.27.0 <prev/2.27.0/index>`
     - 12/19/25
   * - :doc:`2.26.1 <prev/2.26.1>`
     - 10/29/25
   * - :ref:`2.26.0 <neuron-2-26-0-whatsnew>`
     - 09/18/25  
   * - :ref:`2.25.0 <neuron-2-25-0-whatsnew>`
     - 07/31/25
   * - :ref:`2.24.1 <neuron-2-24-1-whatsnew>`
     - 06/30/25
   * - :ref:`2.24.0 <neuron-2-24-0-whatsnew>`
     - 06/24/25
   * - :ref:`2.23.0 <neuron-2.23.0-whatsnew>`
     - 06/10/25
   * - :ref:`2.22.1 <neuron-2.22.1-whatsnew>`
     - 05/12/25
   * - :ref:`2.22.0 <neuron-2.22.0-whatsnew>`
     - 04/03/25
   * - :ref:`2.21.1 <neuron-2.21.1-whatsnew>`
     - 01/14/25
   * - :ref:`2.21.0 Beta <neuron-2.21.0.beta-whatsnew>`
     - 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 :doc:`archive/index`.

Older Releases
-----------------

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

* :doc:`Previous Neuron SDK 2.X release notes </release-notes/prev/rn>`
* :doc:`Archived Neuron SDK 1.X release notes </release-notes/archive/neuron1/prev/rn>`