> ## 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 5.5.1-2

[localhost link]: http://localhost:3000/docs/5/fusion/release-notes/5.5.1-2-release-notes

[mintlify link]: https://doc.lucidworks.com/docs/5/fusion/release-notes/5.5.1-2-release-notes

[old doc.lw link]: https://doc.lucidworks.com/fusion/5.9/50cbsq

**Release date:** June 8, 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).**

<Warning>
  A bug in the Netty Recycler component of fusion-spark can cause jobs to terminate early. To work around this issue, add the following parameters to the "Spark Settings" section:

  ```bash theme={"dark"}
  spark.driver.extraJavaOptions=-Dorg.apache.pulsar.shade.io.netty.recycler.maxCapacityPerThread=0
  spark.executor.extraJavaOptions=-Dorg.apache.pulsar.shade.io.netty.recycler.maxCapacityPerThread=0
  ```

  For example:

  <img src="https://mintcdn.com/lucidworks/aJg00sncwy9AQv3p/assets/images/fusion-spark-bug.png?fit=max&auto=format&n=aJg00sncwy9AQv3p&q=85&s=33911c2da0e0829a2eef9a3ae6540336" alt="Configuration to resolve Netty Recycler bug" width="891" height="352" data-path="assets/images/fusion-spark-bug.png" />

  This bug is fixed in [5.5.1-3](/docs/5/fusion/release-notes/more/5.5.1-3-release-notes)
</Warning>

<Tip>
  **Looking to upgrade?**

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

## New features

* Fusion 5.5.1-2 adds support for Kubernetes 1.25 and 1.26 to [Fusion 5.5.1](/docs/5/fusion/release-notes/more/5.5.1-release-notes). Support for GKE is limited to Kubernetes 1.25, due to the bug described above.

## Bug fixes

* Fixed a bug with the Tika parser that prevented Fusion from parsing Word documents added to the Blob Store.

## Known issues

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