# 2.9.1 release notes


April 06, 2023

NGINX Instance Manager 2.9.1 release notes
## Upgrade Paths {#2-9-1-upgrade-paths}

NGINX Instance Manager 2.9.1 supports upgrades from these previous versions:

- 2.6.0 - 2.9.0

If your NGINX Instance Manager version is older, you may need to upgrade to an intermediate version before upgrading to the target version.

## Resolved issues {#2-9-1-resolved-issues}

This release fixes the following issues. Use your browser's search function to find the issue ID in the page.

- [icon: resolved] NGINX configurations with special characters may not be editable from the web interface after upgrading Instance Manager (41557)

## Known issues {#2-9-1-known-issues}

You can find information about known issues in the [Known Issues](/nim/releases/known-issues.md) topic.