> ## 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 5.7.1

[localhost link]: http://localhost:3000/docs/5/fusion/release-notes/5.7.1-release-notes

[mintlify link]: https://doc.lucidworks.com/docs/5/fusion/release-notes/5.7.1-release-notes

[old doc.lw link]: https://doc.lucidworks.com/fusion/5.9/dvb7jr

**Release date:** January 30, 2023

**Component versions:**

| Component               | Version                                                                                                                                                                                                                                                                               |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Solr**                | fusion-solr 8.11.1  *(based on Solr 8.11.1)*                                                                                                                                                                                                                                          |
| **ZooKeeper**           | 3.7.1                                                                                                                                                                                                                                                                                 |
| **Spark**               | 3.2.2                                                                                                                                                                                                                                                                                 |
| **Kubernetes**          | GKE, AKS, EKS 1.24  Rancher (RKE) and OpenShift 4 compatible with Kubernetes 1.24  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>

## Improvements

* Remote connector jobs now have the ability to recover from temporary network interruptions.

## Bug Fixes

* Fixed a bug that caused errors with the Argo workflow due to an issue in the Helm chart.

* Fixed a bug that can prevent the Fusion indexing microservices from running with Transport Layer Security (TLS) enabled. Other microservices, which rely on the indexing microservice, were subsequently prevented from running.

* Fixed a bug with [Spark jobs](/docs/5/fusion/operations/jobs-and-scheduling/spark-jobs) that prevented the deletion of the temporary `job-impl.jar` file. This bug resulted in excessive pod disk space usage. Now, the directory containing the file is deleted when the job finishes.

* Fixed a bug with the Smart Answers Supervised Training job that prevented a trained model from deploying.

* Fixed a bug in the Spark 3.2.x component that prevented signal aggregation for signals stored in the cloud in Parquet format. For more information about the issue, see the [Spark bug report](https://issues.apache.org/jira/browse/SPARK-38318).

## Known issues

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