> ## Documentation Index
> Fetch the complete documentation index at: https://doc.lucidworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Fusion 5.5.1-3

[localhost link]: http://localhost:3000/docs/5/fusion/release-notes/5.5.1-3-release-notes

[mintlify link]: https://doc.lucidworks.com/docs/5/fusion/release-notes/5.5.1-3-release-notes

[old doc.lw link]: https://doc.lucidworks.com/fusion/5.9/zgxf2l

**Release date:** July 26, 2023

**Component versions:**

| Component               | Version                                                                                                                                                                                                                                                                                                 |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Solr**                | 8.11.1                                                                                                                                                                                                                                                                                                  |
| **ZooKeeper**           | 3.6.2                                                                                                                                                                                                                                                                                                   |
| **Spark**               | 2.4.5                                                                                                                                                                                                                                                                                                   |
| **Kubernetes**          | GKE, AKS, EKS 1.25 and 1.26  Rancher (RKE) and OpenShift 4 compatible with Kubernetes 1.25 and 1.26  OpenStack and customized Kubernetes installs not supported.  See [Kubernetes support](/docs/policies/lifecycle-policies/lw-version-support-lifecycle#kubernetes-support) for end of support dates. |
| **Ingress Controllers** | Nginx, Ambassador (Envoy), GKE Ingress Controller  Istio not supported.                                                                                                                                                                                                                                 |

**More information about support dates can be found at [Lucidworks Fusion Product Lifecycle](/docs/policies/lifecycle-policies/lw-version-support-lifecycle).**

<Tip>
  **Looking to upgrade?**

  See [Fusion 5 Upgrades](/docs/5/fusion/operations/fusion-5-upgrades) for detailed instructions.
</Tip>

## Bug fixes

* Fixed an issue where Spark jobs failed when logging was used. You no longer need to use the workaround documented in the [5.5.1-1](/docs/5/fusion/release-notes/more/5.5.1-1-release-notes) and [5.5.1-2](/docs/5/fusion/release-notes/more/5.5.1-2-release-notes) release notes.

* Fixed an issue that prevented QnA Smart Answers jobs from finishing.

* Fixed an issue that prevented deploying Seldon models.

* Fixed an issue that prevented V2 connectors from running index pipelines configured with a Milvus stage.

## Known issues

* New Kerberos security realms cannot be configured successfully in this version of Fusion.