.. meta:: :description: Complete release notes for the Neuron Developer Tools component across all AWS Neuron SDK versions. :keywords: neuron tools, developer tools, profiler, release notes, neuron explorer, aws neuron sdk :date-modified: 02/26/2026 .. _dev-tools_rn: Component Release Notes for Neuron Developer Tools ================================================== The release notes for the Neuron Developer Tools. Read them for the details about the changes, improvements, and bug fixes for all release versions of the AWS Neuron SDK. .. _dev-tools-2-28-0-rn: Neuron Developer Tools & Neuron Explorer (Neuron 2.28.0 Release) -------------------------------------------------------------------------------------- Date of Release: 02/26/2026 Improvements ~~~~~~~~~~~~~~~ * Added system profiling support in Neuron Explorer, enabling you to capture and analyze system-level performance data with drill-down navigation to device profiles. See :doc:`Neuron Explorer system profiling `. * Added migration guide from Neuron Profiler/Profiler 2.0 to Neuron Explorer. See :ref:`neuron-profiler-migration-guide`. * Added ability to save and search by tags in Neuron Explorer Profile Manager, allowing you to organize and quickly locate profiles across multiple profiling sessions. See :ref:`neuron-explorer-profile-manager`. * Added help pop-up for the ``Device Trace Viewer`` in Neuron Explorer to see shortcuts and dependency color legend. See :doc:`Device Trace Viewer `. * Introduced ``Tensor Viewer`` in Neuron Explorer, enabling you to quickly identify memory bottlenecks by viewing tensor names, shapes, sizes, and memory usage in a single interface. See :ref:`tensor-viewer-overview`. * Introduced ``Database Viewer`` in Neuron Explorer as an interactive interface for querying and exploring profiling data using SQL or natural language, allowing you to perform custom analysis without writing code. See :ref:`database-viewer-overview`. * Enhanced data integrity checks in ``nccom-test`` by using pseudo-random data patterns instead of fixed patterns, improving detection of data corruption during collective operations. See `Data Integrity`_ in the nccom-test documentation. * Added support for ``alltoallv`` collective operation in ``nccom-test``, enabling benchmarking of variable-sized all-to-all communication patterns. See `AlltoAllV Example`_ in the nccom-test documentation. Breaking Changes ~~~~~~~~~~~~~~~~ * The ``neuron-profile analyze`` subcommand is no longer supported. We recommend migrating to Neuron Explorer. See :doc:`Get Started with Neuron Explorer `. Bug Fixes ~~~~~~~~~ * ``neuron-ls`` now handles concurrent queries correctly. Previously, when multiple processes queried Neuron devices simultaneously, ``neuron-ls`` would fail with a driver error, preventing you from viewing device status. * Neuron Explorer now correctly calculates PSUM usage for operations spanning multiple partitions. Previously, PSUM usage was underreported, which could lead to incorrect performance optimization decisions. .. _dev-tools-2-27-0-rn: Neuron Developer Tools & Neuron Explorer [2.29.0] (Neuron 2.27.0 Release) ------------------------------------------------------------------------- Date of Release: 12/19/2025 Improvements ~~~~~~~~~~~~~~~ * Introduced Neuron Explorer - A unified profiling suite that replaces Neuron Profiler and Profiler 2.0. * Four core viewers provide insights into model performance: Hierarchy Viewer, AI Recommendation Viewer, Source Code Viewer, and Summary Viewer. * Neuron Explorer is available through UI, CLI, and VSCode IDE integration. * Added fine-grained collective communication support to nccom-test utility. * New tutorials cover profiling NKI kernels, multi-node training jobs, and vLLM inference workloads. * Added Trn3 support for neuron-monitor, neuron-top, neuron-ls, and nccom-test. Breaking Changes ~~~~~~~~~~~~~~~~ * Neuron Profiler and Profiler 2.0 support ends after Neuron 2.28. Bug Fixes ~~~~~~~~~ * Improved profiling accuracy and reduced overhead. * Fixed visualization issues in multi-process scenarios. Known Issues ~~~~~~~~~~~~ * Existing NTFF files are compatible but require reprocessing for new features. * Neuron Explorer does not support system level profiling at this time. ---- .. _dev-tools-2-26-0-rn: Neuron Developer Tools [2.26.7.0] (Neuron 2.26.0 Release) ---------------------------------------------------------- Date of Release: 09/18/2025 Improvements ~~~~~~~~~~~~~~~ * Profiler UI now allows selecting multiple semaphore values to display simultaneously for a more comprehensive view of activity. * System profile grouping default in Perfetto now uses global NeuronCore ID instead of process local NeuronCore ID for better display of multi-process workloads. * Added warning when system profile events are dropped due to limited buffer space. * nccom-test support on Trn2 for State Buffer to State Buffer collectives benchmarking for all-reduce, all-gather, and reduce-scatter operations. * nccom-test will show helpful error message when invalid sizes are used with all-to-all collectives. Bug Fixes ~~~~~~~~~ * Fixed device memory usage type table and improvement made to stay in sync between runtime and tools versions. * Fixed system profile crash when processing long-running workloads. * Fixed display of system profiles in Perfetto to correctly separate rows within the same Logical NeuronCore when using NEURON_LOGICAL_NC_CONFIG=2 on Trn2. ---- .. _dev-tools-2-25-0-rn: Neuron Developer Tools [2.25.100.0] (Neuron 2.25.0 Release) ------------------------------------------------------------ Date of Release: 07/31/2025 Improvements ~~~~~~~~~~~~~~~ * neuron-ls now shows NeuronCore IDs associated with each Neuron device as well as CPU and NUMA node affinity in both the text and JSON outputs. * Added a summary metric to device profiles for total_active_time (the amount of time the device was not idle during execution). * System profiles now show the sync point events that are used to approximate CPU and Neuron device timestamp alignment. * Removed metrics for defunct processes from Neuron Monitor's Prometheus output to more accurately reflect the current utilization of NeuronCores. Bug Fixes ~~~~~~~~~ * Fixed issue in Neuron Profiler summary metrics where dma_active_time was larger than expected. * Fixed type inconsistency for certain event types and attributes in the system profile data that could result in a crash. Known Issues ~~~~~~~~~~~~ * System profile hardware events may be misaligned due to sync point imprecision. * System profile events shown in the Neuron Profiler UI for multiprocess workloads are grouped together. ---- .. _dev-tools-2-24-0-rn: Neuron Developer Tools [2.24.54.0] (Neuron 2.24.0 Release) ----------------------------------------------------------- Date of Release: 06/24/2025 Improvements ~~~~~~~~~~~~~~~ * Scratchpad memory usage visualization is now available in the Neuron Profiler UI. * Framework stack traces are now available in the Neuron Profiler UI. * On-device collectives barriers are now shown in the Neuron Profiler UI. * HBM throughput visualization over time is now shown in the Neuron Profiler UI. * Added option to filter the Neuron Cores to capture trace events on. * Added option to filter the event types recorded when capturing system traces. * Added a flag to nccom-test to get results in JSON (--report-to-json-file ). * Added a flag to nccom-test to explicitly show input and output sizes based on the operation (--show-input-output-size). Bug Fixes ~~~~~~~~~ * Fixed instance id labeling in system profile view for framework events. * Fixed issue in Neuron Profiler UI where the full data was not shown in the NEFF Nodes tab. ---- .. _dev-tools-2-23-0-rn: Neuron Developer Tools [2.23.16.0] (Neuron 2.23.0 Release) ----------------------------------------------------------- Date of Release: 05/19/2025 Improvements ~~~~~~~~~~~~~~~ * Improved Neuron Profiler performance, allowing users to view profile results 5x times faster on average. * Improved error reporting with timeline support for error signatures via custom notifications in the Neuron Profiler UI. * Added execution and out-of-bounds (OOB) error tracking in Neuron Profiler JSON outputs. * Updated the default grouping for system profiles to include process ID. * Added neuron-monitor companion script for collecting Kubernetes info in EKS. Bug Fixes ~~~~~~~~~ * Fixed hang during data collection when running nccom-test across multiple instances. * Fixed certain cases in Neuron Profiler where DMA sizes were always reported as 0 bytes. ---- .. _dev-tools-2-22-0-rn: Neuron Developer Tools [2.22.66.0] (Neuron 2.22.0 Release) ----------------------------------------------------------- Date of Release: 04/03/2025 Improvements ~~~~~~~~~~~~~~~ * Added several enhancements to the Neuron Profiler UI, including NeuronCore barrier annotations, a minimal default view to improve initial load performance, usability of updating markers, and better organization of view settings. * Added new event types in the system profile for Neuron Profiler 2.0 (Beta) related to out-of-bounds execution errors, execution request submission, and model switch overhead. * Updated system trace output format for Neuron Profiler 2.0 (Beta). Breaking Changes ~~~~~~~~~~~~~~~~ * neuron-det is no longer supported starting with this release. We recommend customers transition to Neuron Profiler 2.0 (Beta) for debugging runtime hangs and issues in large-scale settings. Bug Fixes ~~~~~~~~~ * Fixed an issue in the Neuron Profiler UI where dependencies were misaligned in the timeline when highlighted. * Fixed an issue where instruction dependency IDs were truncated in the Neuron Profiler JSON output. ---- .. _dev-tools-2-21-0-rn: Neuron Developer Tools [2.20.204.0] (Neuron 2.21.0 Release) ------------------------------------------------------------ Date of Release: 12/20/2024 Improvements ~~~~~~~~~~~~~~~ * Added support for Trn2 instance types. * Added support for Logical Neuroncores. neuron-top, neuron-monitor, and neuron-ls now display and aggregate information per Logical Neuroncore based on LNC configuration. * Added Neuron Profile 2.0 (Beta) with system profiles featuring Neuron Runtime API trace and ML framework trace. * Option to view system and device profiles using the Perfetto UI. * Support for native JAX and PyTorch profilers. * Support for distributed workloads in environments such as EKS and ParallelCluster. * Ability to drill down from high-level system profiles to low-level device profiles. * Simplified experience for capturing profiles. ---- .. _dev-tools-2-20-0-rn: Neuron Developer Tools [2.19.0.0] (Neuron 2.20.0 Release) ---------------------------------------------------------- Date of Release: 09/16/2024 Improvements ~~~~~~~~~~~~~~~ * Added support for Neuron Kernel Interface (NKI). * Updated neuron-profile JSON output to include information regarding instruction dependencies, DMA throughput, and SRAM usage. * Updated Neuron Profiler UI to display transpose information for DMAs (when applicable). Bug Fixes ~~~~~~~~~ * Fixed error handling in neuron-top to exit gracefully when passing an unknown argument. Known Issues ~~~~~~~~~~~~ * None reported for this release. ---- .. _dev-tools-2-19-0-rn: Neuron Developer Tools [2.18.3.0] (Neuron 2.19.0 Release) ---------------------------------------------------------- Date of Release: 07/03/2024 Improvements ~~~~~~~~~~~~~~~ * Profile captured with Neuron Runtime 2.20+ now includes annotations with additional information such as duration, size, and replica groups around collective operations. * Running neuron-profile capture for workloads with collectives will now attempt to use the required number of workers if --collectives-workers-per-node or --collectives-worker-count is not set. * Profiler UI now persists searched information in the URL and provides a summary of the search results. * Updating sampling approach to show more representative data in the profiler UI when zoomed out. * Updated groupings for displayed info on click in the profiler UI. * Added neuron_device_type and neuron_device_memory_size to neuron-monitor's hardware information output. Bug Fixes ~~~~~~~~~ * Resolved issue where NaN would be seen in the JSON output of neuron-profile and result in parsing errors. * Resolved inconsistent timeline display issues in profiler UI that depended on when the profile was processed. * neuron-profile view --output-format summary-text will now display in a fixed order. * Updated accuracy of pending DMA count in the profiler UI. * Removed unnecessary calls to exec when capturing memory utilization metrics in neuron-monitor. ---- .. _dev-tools-2-18-0-rn: Neuron Developer Tools [2.17.1.0] (Neuron 2.18.0 Release) ---------------------------------------------------------- Date of Release: 04/01/2024 Improvements ~~~~~~~~~~~~~~~ * NeuronPerf 1.8.55.0: Minor updates. Bug Fixes ~~~~~~~~~ * Fixed potential hang during synchronization step in nccom-test. ---- .. _dev-tools-2-17-0-rn: Neuron Developer Tools [2.17.0.0] (Neuron 2.17.0 Release) ---------------------------------------------------------- Date of Release: 02/13/2024 Improvements ~~~~~~~~~~~~~~~ * Added support to neuron-profile for collective communication operator improvements in Neuron SDK 2.17. * Optimized count query for sampling in neuron-profile UI for up to 3x faster load performance. * Introduced warning annotations in neuron-profile UI to automatically highlight potential performance issues. Bug Fixes ~~~~~~~~~ * Resolved issue of inaccurate execution time reported by neuron-profile as mentioned in Neuron Tools 2.16.1.0 release notes. * Fixed NaN display errors in the neuron-profile UI. * Fixed file naming issue when capturing collectives profiles with neuron-profile. ---- .. _dev-tools-2-16-0-rn: Neuron Developer Tools [2.16.1.0] (Neuron 2.16.0 Release) ---------------------------------------------------------- Date of Release: 12/21/2023 Improvements ~~~~~~~~~~~~~~~ * First release of the Neuron Distributed Event Tracing tool neuron-det to visualize execution for multi-node workloads. * neuron-profile now has the ability to capture multi-worker jobs. * Added terminology descriptions to neuron-profile summary statistics. * Added optional flags to neuron-profile view to change the InfluxDB bucket name (--db-bucket ) and profile display name (--display-name ). * NeuronPerf 1.8.15.0: Minor updates. Bug Fixes ~~~~~~~~~ * Fixed bug where GPSimd summary values were missing in the profile summary. * Fixed issue in nccom-test to no longer expect Neuron Device 0 in a container environment. * Fixed issue in nccom-test to no longer require the instance launching nccom-test to be participating in the workload. Known Issues ~~~~~~~~~~~~ * Execution time reported in neuron-profile is sometimes inaccurate due to a bug in how the time is captured. The bug will be addressed in upcoming Neuron releases. ---- .. _dev-tools-2-15-0-rn: Neuron Developer Tools [2.15.4.0] (Neuron 2.15.0 Release) ---------------------------------------------------------- Date of Release: 10/26/2023 Improvements ~~~~~~~~~~~~~~~ * Improved visibility of summary stats in the profiler UI with added groupings. * Added support for alltoall CC operation in nccom-test. Bug Fixes ~~~~~~~~~ * Fixed bug in neuron-profile that may result in a crash when using the NeuronCore Pipeline feature on Inf1. ---- .. _dev-tools-2-14-0-rn: Neuron Developer Tools [2.14.6.0] (Neuron 2.14.0 Release) ---------------------------------------------------------- Date of Release: 09/15/2023 Improvements ~~~~~~~~~~~~~~~ * Added legend in neuron-ls to clarify wrap around edges for topology view. * Improved error messaging when passing invalid arguments to neuron-profile view. * Profiler output now includes HLO name in addition to framework layer names. * neuron-profile view now has --output-format json option which will write to a file specified by --output-file (default is ntff.json) instead of writing data to InfluxDB. Bug Fixes ~~~~~~~~~ * Fixed bug in neuron-profile that incorrectly calculated buffer utilization for more recently compiled NEFFs. * Fixed bug in neuron-profile where the profile would sometimes include additional idle time while waiting for execution to start. ---- .. _dev-tools-2-13-0-rn: Neuron Developer Tools [2.13.4.0] (Neuron 2.13.0 Release) ---------------------------------------------------------- Date of Release: 08/28/2023 Improvements ~~~~~~~~~~~~~~~ * --check option of nccom-test now supports more data types (fp16, bf16, (u)int8, (u)int16, and (u)int32 are now supported in addition to fp32). * NeuronPerf 1.8.7.0: Minor updates. Bug Fixes ~~~~~~~~~ * Fixed bug in nccom-test that would wait indefinitely for execution to end when running on multiple instances (-N 2 and higher). * Fixed bug in neuron-profile to prevent a crash during utilization calculation. ---- .. _dev-tools-2-12-0-rn: Neuron Developer Tools [2.12.2.0] (Neuron 2.12.0 Release) ---------------------------------------------------------- Date of Release: 07/19/2023 Improvements ~~~~~~~~~~~~~~~ * Bumped the max supported profiling NTFF version to version 2 to resolve crashes when postprocessing NTFFs captured with newer versions of the Neuron Runtime Library. * When viewing profiles captured using Neuron Runtime Library 2.15 or above, please upgrade tools to 2.12. * This version of Neuron tools remains compatible with NTFF version 1. Bug Fixes ~~~~~~~~~ * Bug fixes for neuron-profile related to the calculation of some summary stats. ---- .. _dev-tools-2-11-0-rn: Neuron Developer Tools [2.11.10.0] (Neuron 2.11.0 Release) ----------------------------------------------------------- Date of Release: 06/14/2023 Improvements ~~~~~~~~~~~~~~~ * nccom-test can now show multiple latency stats in the results table, such as average or percentiles, by specifying the -s option (for example: -s p10 p99 avg p50). * First public support for neuron-profile as a standalone tool that can be used to profile executions on Neuron Devices. ---- .. _dev-tools-2-10-0-rn: Neuron Developer Tools [2.10.1.0] (Neuron 2.10.0 Release) ---------------------------------------------------------- Date of Release: 05/01/2023 Improvements ~~~~~~~~~~~~~~~ * Added new Neuron Collectives benchmarking tool, nccom-test, to enable benchmarking sweeps on various Neuron Collective Communication operations. * Expanded support for Neuron profiling to include runtime setup/teardown times and collapsed execution of NeuronCore engines and DMA. ---- .. _dev-tools-2-9-0-rn: Neuron Developer Tools [2.9.5.0] (Neuron 2.9.0 Release) -------------------------------------------------------- Date of Release: 03/28/2023 Improvements ~~~~~~~~~~~~~~~ * Updated neuron-top to show effective FLOPs across all NeuronCores. * NeuronPerf 1.7.0.0: Adds trn1/inf2 support for PyTorch and TensorFlow 2.x. Uses new IMDSv2 for obtaining instance types. ---- .. _dev-tools-2-8-0-rn: Neuron Developer Tools [2.8.2.0] (Neuron 2.8.0 Release) -------------------------------------------------------- Date of Release: 02/24/2023 Improvements ~~~~~~~~~~~~~~~ * Updated neuron-top to show aggregated utilization/FLOPs across all NeuronCores. ---- .. _dev-tools-2-7-0-rn: Neuron Developer Tools [2.7.2.0] (Neuron 2.7.0 Release) -------------------------------------------------------- Date of Release: 02/08/2023 Improvements ~~~~~~~~~~~~~~~ * Added support for model FLOPS metrics in both neuron-monitor and neuron-top. ---- .. _dev-tools-2-6-0-rn: Neuron Developer Tools [2.6.0.0] (Neuron 2.6.0 Release) -------------------------------------------------------- Date of Release: 12/09/2022 Improvements ~~~~~~~~~~~~~~~ * Added support for profiling with the Neuron Plugin for TensorBoard on TRN1. * Updated profile post-processing for workloads executed on TRN1. ---- .. _dev-tools-2-5-0-rn: Neuron Developer Tools [2.5.19.0] (Neuron 2.5.0 Release) --------------------------------------------------------- Date of Release: 11/07/2022 Improvements ~~~~~~~~~~~~~~~ * Minor bug fixes and improvements. Bug Fixes ~~~~~~~~~ * Minor bug fixes and improvements. ---- .. _dev-tools-2-5-0-2-rn: Neuron Developer Tools [2.5.16.0] (Neuron 2.5.0 Release) --------------------------------------------------------- Date of Release: 10/26/2022 Improvements ~~~~~~~~~~~~~~~ * New neuron-monitor and neuron-top feature: memory utilization breakdown. This new feature provides more details on how memory is being currently used on the Neuron Devices as well as on the host instance. * neuron-top's UI layout has been updated to accommodate the new memory utilization breakdown feature. * neuron-monitor's inference_stats metric group was renamed to execution_stats. While the previous release still supported inference_stats, starting this release the name inference_stats is considered deprecated and can't be used anymore. * NeuronPerf 1.6.0.0: New Evaluation + metrics API. Support map and iterable-type torch datasets. Support custom torch DataLoader args via dataloader_kwargs. New get_report_by_tag utility to identify specific configurations. Python 3.7+ now default from 3.6. Pricing and sizing info updated for inf1 + trn1. Breaking Changes ~~~~~~~~~~~~~~~~ * neuron-monitor's inference_stats metric group was renamed to execution_stats. Bug Fixes ~~~~~~~~~ * Fix a rare crash in neuron-top when the instance is under heavy CPU load. * Fix process names on the bottom tab bar of neuron-top sometimes disappearing for smaller terminal window sizes. * NeuronPerf: GPU inputs are now moved correctly. ---- .. _dev-tools-2-4-0-rn: Neuron Developer Tools [2.4.6.0] (Neuron 2.4.0 Release) -------------------------------------------------------- Date of Release: 10/10/2022 Improvements ~~~~~~~~~~~~~~~ * Added support for both EC2 INF1 and TRN1 platforms. Name of the package changed from aws-neuron-tools to aws-neuronx-tools. * Added support for ECC counters on Trn1. * Added version number output to neuron-top. * Expanded support for longer process tags in neuron-monitor. * Removed hardware counters from the default neuron-monitor config to avoid sending repeated errors - will add back in future release. * neuron-ls - Added option neuron-ls --topology with ASCII graphics output showing the connectivity between Neuron Devices on an instance. Breaking Changes ~~~~~~~~~~~~~~~~ * Package name changed from aws-neuron-tools to aws-neuronx-tools. Bug Fixes ~~~~~~~~~ * Fix neuron-monitor and neuron-top to show the correct Neuron Device when running in a container where not all devices are present. ---- .. _dev-tools-2-1-0-rn: Neuron Developer Tools [2.1.4.0] (Neuron 2.1.0 Release) -------------------------------------------------------- Date of Release: 04/29/2022 Improvements ~~~~~~~~~~~~~~~ * Minor updates. * NeuronPerf 1.3.0.0: Minor updates. ---- .. _dev-tools-2-0-790-0-rn: Neuron Developer Tools [2.0.790.0] (Neuron 2.0.0 Release) ---------------------------------------------------------- Date of Release: 03/25/2022 Improvements ~~~~~~~~~~~~~~~ * NeuronPerf 1.2.0.0: Initial release of NeuronPerf. Supports PyTorch, TensorFlow, and Apache MXNet. Supports customizable JSON and CSV reports. Bug Fixes ~~~~~~~~~ * neuron-monitor: fixed a floating point error when calculating CPU utilization. ---- .. _dev-tools-2-0-623-0-rn: Neuron Developer Tools [2.0.623.0] (Neuron 2.0.0 Release) ---------------------------------------------------------- Date of Release: 01/20/2022 Improvements ~~~~~~~~~~~~~~~ * neuron-top - Added "all" tab that aggregates all running Neuron processes into a single view. * neuron-top - Improved startup time to approximately 1.5 seconds in most cases. * neuron-ls - Removed header message about updating tools from neuron-ls output. Bug Fixes ~~~~~~~~~ * neuron-top - Reduced single CPU core usage down to 0.7% from 80% on inf1.xlarge when running neuron-top by switching to an event-driven approach for screen updates. ---- .. _dev-tools-2-0-494-0-rn: Neuron Developer Tools [2.0.494.0] (Neuron 2.0.0 Release) ---------------------------------------------------------- Date of Release: 12/27/2021 Improvements ~~~~~~~~~~~~~~~ * Security related updates related to log4j vulnerabilities. ---- .. _dev-tools-2-0-327-0-rn: Neuron Developer Tools [2.0.327.0] (Neuron 2.0.0 Release) ---------------------------------------------------------- Date of Release: 11/05/2021 Improvements ~~~~~~~~~~~~~~~ * Updated Neuron Runtime (which is integrated within this package) to libnrt 2.2.18.0 to fix a container issue that was preventing the use of containers when /dev/neuron0 was not present. Bug Fixes ~~~~~~~~~ * Fixed container issue preventing use of containers when /dev/neuron0 was not present. ---- .. _dev-tools-2-0-277-0-rn: Neuron Developer Tools [2.0.277.0] (Neuron 2.0.0 Release) ---------------------------------------------------------- Date of Release: 10/27/2021 Improvements ~~~~~~~~~~~~~~~ * Tools now support applications built with Neuron Runtime 2.x (libnrt.so). * Updates have been made to neuron-ls and neuron-top to significantly improve the interface and utility of information provided. * Expands neuron-monitor to include additional information when used to monitor latest Frameworks released with Neuron 1.16.0. * neuron-cli entering maintenance mode as its use is no longer relevant when using ML Frameworks with an integrated Neuron Runtime (libnrt.so). Breaking Changes ~~~~~~~~~~~~~~~~ * You must update to the latest Neuron Driver (aws-neuron-dkms version 2.1 or newer) for proper functionality of the new runtime library. * neuron-cli entering maintenance mode. Known Issues ~~~~~~~~~~~~ * None reported for this release.