# 2.4.0 release notes
August 16, 2022
NGINX Instance Manager 2.4.0 release notes
## Upgrade Paths {#2-4-0-upgrade-paths}
NGINX Instance Manager 2.4.0 supports upgrades from these previous versions:
- 2.1.0 - 2.3.1
If your NGINX Instance Manager version is older, you may need to upgrade to an intermediate version before upgrading to the target version.
## What's new {#2-4-0-whats-new}
This release includes the following updates:
- [icon: feature] **Get notified about critical events**
Instance Manager 2.4 adds a notifications panel to the web interface. After logging in to NGINX Management Suite, select the notification bell at the top of the page to view critical system events (`WARNING` or `ERROR` level events). Future releases will support additional notification options.
- [icon: feature] **See which of your NGINX Plus instances have NGINX App Protect installed**
Now, when you [view your NGINX Plus inventory](/nim/licensing-and-reporting/report-usage-connected-deployment.md), you can see which instances have [NGINX App Protect](https://www.nginx.com/products/nginx-app-protect/) installed. NGINX App Protect is a modern app‑security solution that works seamlessly in DevOps environments as a robust WAF or app‑level DoS defense, helping you deliver secure apps from code to customer.
## Changes in default behavior{#2-4-0-changes-in-behavior}
This release has the following changes in default behavior:
- [icon: feature] **You no longer need to associate a certificate with an instance using the web interface**
NGINX Management Suite will automatically deploy a certificate to an NGINX instance if the instance's config references the certificate on the NMS platform.
- [icon: feature] **Adds nms-integrations service**
This release adds a new service called `nms-integerations`. This service is for future integrations; no user management or configuration is needed at this time.
## Resolved issues {#2-4-0-resolved-issues}
This release fixes the following issues. Use your browser's search function to find the issue ID in the page.
- [icon: resolved] Unable to publish config changes to a custom nginx.conf location (35276)
## Known issues {#2-4-0-known-issues}
You can find information about known issues in the [Known Issues](/nim/releases/known-issues.md) topic.