> This page is for Evo 2, version 2.2.0 (Latest) (default).
> For other versions, use one of these documentation indexes:
> - 2.2.0 (Latest) (default): https://docs.nvidia.com/nim/bionemo/evo2/2.2.0/llms.txt
> - 2.1.0: https://docs.nvidia.com/nim/bionemo/evo2/2.1.0/llms.txt
> - 2.0.0: https://docs.nvidia.com/nim/bionemo/evo2/2.0.0/llms.txt
> - 1.0.2: https://docs.nvidia.com/nim/bionemo/evo2/1.0.2/llms.txt
> - 1.0.1: https://docs.nvidia.com/nim/bionemo/evo2/1.0.1/llms.txt
> - 1.0.0: https://docs.nvidia.com/nim/bionemo/evo2/1.0.0/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nim/bionemo/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nim/bionemo/_mcp/server.

# Release Notes

## September 16, 2026

## Release 2.2.0

### Summary

This is a stability release. It addresses security vulnerabilities, includes bug fixes, and improves runtime reliability. The 7B and 40B model variants and APIs are unchanged from 2.1.0.

### Model Variants

* Evo 2 7B 1M
* Evo 2 40B 1M

### New features and improvements

* Addressed Common Vulnerabilities and Exposures (CVE) issues in container dependencies and the base image.
* Improved runtime stability and reliability.

### Bug fixes

* Resolved issues that could affect inference stability.

### Breaking changes

* None.

### Migration notes

* No migration steps are required for existing users of the 2.1.0 container.

## September 25, 2025

## Release 2.1.0

### Summary

This release introduces support for the Evo 2 7B 1M model variant, providing a faster and more resource-efficient option while maintaining strong accuracy for most use cases. The 40B 1M model remains available as the default for maximum accuracy. This update also includes documentation improvements, clarifies advanced usage and model selection, and updates the release notes to reflect the new model variant.

Since the container now supports both 40B/7B variants and custom models, the name of the container has changed from `evo2-40b` to just `evo2`. New releases are still published under both names for compatibility and convenience of existing users.

### Model Variants

* Evo 2 7B 1M
* Evo 2 40B 1M

### New features and improvements

* Added support for the Evo 2 7B 1M model variant, selectable via the `NIM_VARIANT=7b` environment variable.
* Updated documentation to describe model selection and advanced usage.
* Container name changed from `evo2-40b` to `evo2` to reflect support for multiple model variants and custom models.

### Bug fixes

* Minor documentation corrections and formatting fixes.

### Performance enhancements

* The 7B model variant offers reduced memory and compute requirements, enabling faster inference.

### Breaking changes

* None.

### Migration notes

* No migration steps are required for existing users of the 40B model. To use the 7B model, set the `NIM_VARIANT` environment variable to `7b` when launching the container.
* The container is now available under the name `evo2` instead of `evo2-40b`, though both names remain available for compatibility.

## August 28, 2025

## Release 2.0.0

### Summary

This major release introduces support for loading custom and fine-tuned
checkpoints, enabling users to leverage their own model weights or
community-provided variants. The internal implementation of NIM has migrated to
the [NVIDIA BioNeMo Framework](https://github.com/NVIDIA/bionemo-framework),
providing unified training and inference code bases and standardized
checkpoint formats.

Thanks to the migration to the BioNeMo Framework, new Evo 2 NIM release
delivers up to 30% faster inference workflows compared to the 1.x series.

**Important:** Due to the change in internal model representation, model layer
names and parameter shapes have changed. As a result, `/forward` API calls are
not backward-compatible with 1.x releases.

### Model Variant

* Evo 2 40B 1M

## May 28, 2025

## Release 1.0.2

### Summary

This is a minor update that includes changes that enhance stability for users
operating in multi-GPU environments and improve compatibility with new NIM
versions:

* Resolved an issue related to FP8 extra states when running on specific
  combinations of GPU interconnects and CPUs. The fix ensures correct handling
  of FP8 extra states, with additional checks to verify correct functionality.

* Updated `nimlib` and related dependencies to improve compatibility with the
  latest NIM releases.

### Model Variant

* Evo 2 40B 1M

## April 30, 2025

## Release 1.0.1

### Summary

This is a minor update that includes the following changes:

* The input prompt is now automatically converted to uppercase internally,
  helping to prevent the common mistake of supplying lowercase DNA sequences to
  the model.

* For non-recoverable errors, such as unrecoverable memory ECC errors, the health
  endpoint will now reflect the error status. This allows cloud infrastructure
  to redeploy the instance to healthy hardware.

### Model Variant

* Evo 2 40B 1M

## February 18, 2025

## Release 1.0.0

### Summary

This is the first release of Evo 2 NIM. Evo 2 is a biological foundation model
that is able to integrate information over long genomic sequences, while
retaining sensitivity to single-nucleotide changes.

This release features 40 billion parameters model trained on 11 trillion DNA
nucleotides with context-length of up to 1 million DNA nucleotides.

### Model Variant

* Evo 2 40B 1M

### Notes and Limitations

Ensure you use this model with GPUs that have FP8 support, such as NVIDIA H100,
NVIDIA H200, or newer. For more information, see [Prerequisites and Support Matrix for Evo2 NIM](/nim/bionemo/evo2/prerequisites). Older GPUs are not currently
supported.

Ensure you always use the [benchmarking](/nim/bionemo/evo2/benchmarking) suite so that the
deployed model works as expected.