Poseidon
Poseidon is a container network policy plug-in that implements the standard Kubernetes NetworkPolicy. This topic introduces Poseidon, its usage notes, and release notes.
Usage
Changelog
June 2026
Version | Date | Description | Impact |
v0.8.0 | June 10, 2026 | Note This version is in a phased rollout.
| Non-breaking change. |
May 2026
Version | Date | Description | Impact |
v0.7.6 | May 22, 2026 |
| Non-breaking change. |
April 2026
Version | Date | Description | Impact |
v0.7.5 | April 22, 2026 |
| Non-breaking change. |
v0.7.4 | April 22, 2026 | Fixed an issue with TrafficPolicy rule synchronization. | Non-breaking change. |
v0.7.3 | April 17, 2026 |
| Non-breaking change. |
v0.7.1 | April 9, 2026 | Added support for TrafficPolicy in ECS node pools. | Non-breaking change. |
March 2026
Version | Date | Description | Impact |
v0.7.0 | March 26, 2026 | Added support for TrafficPolicy. | Non-breaking change. |
July 2024
Version | Date | Description | Impact |
v0.5.2 | July 29, 2024 | Fixed a compatibility issue with ACK Serverless clusters. | Non-breaking change. |
v0.5.1 | July 9, 2024 | Fixed an issue where the namespace selector might not take effect. | Non-breaking change. |
v0.5.0 | July 1, 2024 | Added support for ACK NetworkPolicy. | Non-breaking change. |
September 2023
Version | Date | Description | Impact |
v0.3.0 | September 8, 2023 | Added support for named ports in NetworkPolicy. | Non-breaking change. |
July 2023
Version | Date | Description | Impact |
v0.1.0 | July 6, 2023 | Added support for NetworkPolicy in ACK Serverless clusters. | Non-breaking change. |