Prometheus Collection Agent Plugin 6.x Release Notes
Overview Copied
This page provides information about the Prometheus Collection Agent plugin version 6.x release, including new features and resolved issues.
For a detailed overview of the Geneos 7.x.x release, including key highlights for other components, see Geneos 7.x Release Notes.
Prometheus Collection Agent plugin 6.4.0 Copied
Released: 25 March 2026 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| COL-12973 | Prometheus alerts that exceed the previous character limit are now truncated instead of dropped, ensuring long alert messages are still delivered to Geneos. |
| COL-13004 | Alerts are no longer dropped when the description annotation is missing. The plugin now falls back to using the message or summary fields, and logs a warning only if none of these fields are present. |
| COL-13046 | This release updates the Prometheus Collection Agent plugin to version 6.4.0, which also requires a minimum Collection Agent version 6.5.0 for proper functionality. |
Prometheus Collection Agent plugin 6.3.3 Copied
Released:
- 18 March 2026 Packaged with Geneos 7.8.3
- 12 March 2026 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| C2-504, COL-13039 | Updated jackson-core to resolve the security vulnerability GHSA-72hv-8253-57qq, which may allow a denial-of-service condition. |
Prometheus Collection Agent plugin 6.3.2 Copied
Released:
- 29 January 2026 Packaged with Geneos 7.8.0
- 20 January 2026 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| C2-500 | This release updates the Vert.x dependencies used by the Prometheus Collection Agent plugin to version 4.5.24. In addition, CVE-2026-1002 has been disclosed and fixed in this release. |
| COL-12911 | Blank metric dimensions are now filtered out to prevent invalid dimension errors. |
Prometheus Collection Agent plugin 6.3.1 Copied
Released: 15 January 2026 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| COL-12919 | Addressed the Vert.x security vulnerabilities BDSA-2025-14250 and BDSA-2025-14251. |
| COL-12951 | The Prometheus Collection Agent plugin has been upgraded to use collection-plugin-parent version 6.4.1 to address the Netty security vulnerability BDSA-2025-62789 (CVE-2025-67735). |
Prometheus Collection Agent plugin 6.3.0 Copied
Released: 24 November 2025 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| C2-478 | Upgraded the Kubernetes client to version 7.x. |
Prometheus Collection Agent plugin 6.2.0 Copied
Released:
- 27 November 2025 Packaged with Geneos 7.7.0
- 17 November 2025 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| COL-12769 | The Prometheus Collection Agent plugin now supports authenticating to Prometheus endpoints requiring bearer token authorization. |
Prometheus Collection Agent plugin 6.1.1 Copied
Released:
- 30 September 2025 Packaged with Geneos 7.6.0
- 12 September 2025 Standalone release
Issues fixed Copied
These are the issues we have fixed in this release:
| Issue key | Release description |
|---|---|
| C2-489 | Upgraded Netty to version 4.1.127 to resolve the security vulnerability CVE-2025-55163. |
Prometheus Collection Agent plugin 6.1.0 Copied
Released: 31 July 2025 Standalone release
This release updates the Prometheus Collection Agent plugin to version 6.1.0.
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| C2-424 | Updated the Kubernetes dimension key names to align with OpenTelemetry semantic resource attribute equivalents. |
Prometheus Collection Agent plugin 6.0.0 Copied
Released:
- 07 August 2025 Packaged with Geneos 7.5.0
- 10 July 2025 Standalone release
New features and enhancements Copied
These are the new features and enhancements of this release:
| Issue key | Release description |
|---|---|
| COL-12693 | This release updates the Prometheus Collection Agent plugin to version 6.0.0, which also requires a minimum Collection Agent version 6.0.0 for proper functionality. |