# Redis Enterprise Software release notes 6.2.18-65 (December 2022)

```json metadata
{
  "schema_version": 2,
  "title": "Redis Enterprise Software release notes 6.2.18-65 (December 2022)",
  "description": "Added To field to test email server alerts. New flag to skip cluster resource validation during imports. Improved error messages.",
  "categories": ["docs","operate","rs"],
  "tableOfContents": {"sections":[{"id":"new-features-and-enhancements","title":"New features and enhancements"},{"id":"resolved-issues","title":"Resolved issues"},{"id":"known-upgrade-limitations","title":"Known upgrade limitations"}]}

,
  "codeExamples": []
}
```


This is a maintenance release for ​[​Redis Enterprise Software version 6.2.18](https://redis.io/downloads/#software).

The following table shows the MD5 checksums for the available packages:

| Package | MD5 checksum (6.2.18-65 December release) |
|:--------|:-------------|
| Ubuntu 16 | `515c7bbc97eaf1939757c8894eda9523` |
| Ubuntu 18 | `830e8704c0f6902a04df9ff53cc5e41f` |
| RedHat Enterprise Linux (RHEL) 7<br/>Oracle Enterprise Linux (OL) 7 | `b51d13e30f4a7e1a134982342b8865b0` |
| RedHat Enterprise Linux (RHEL) 8<br/>Oracle Enterprise Linux (OL) 8 | `762f907c1f0e6e0e88e4ae5bf967e143` |

## New features and enhancements

- When setting up an alert email server in the UI: added a `To` field to the `test email server` function (RS86119)
- Added a new flag to skip cluster resource validation when performing import (RS88086)
- Enhanced error message information for connection handling 
- Added logging details to `insufficient_resources` planner error 

#### Redis modules 

Redis Enterprise Software v6.2.18-65 (December release) includes newer versions of the following Redis modules:

- [RediSearch v2.4.16](https://redis.io/docs/latest/operate/oss_and_stack/stack-with-enterprise/release-notes/redisearch/redisearch-2.4-release-notes#v2416-november-2022)
- [RedisGraph v2.8.20](https://redis.io/docs/latest/operate/oss_and_stack/stack-with-enterprise/release-notes/redisgraph/redisgraph-2.8-release-notes#v2820-september-2022)

See [Upgrade modules](https://redis.io/docs/latest/operate/rs/installing-upgrading/modules/upgrade-module) to learn how to upgrade a module for a database. 

## Resolved issues

- RS87191 - Fixes syncer stop due to cross slot violation error in Auto Tiering

## Known upgrade limitations

Before you upgrade a cluster that hosts Active-Active databases with modules to v6.2.18, perform the following steps:

1. Use `crdb-cli` to verify that the modules (`modules`) and their versions (in `module_list`) are as they appear in the database configuration and in the default database configuration:

    ```sh
    crdb-cli crdb get --crdb-guid <crdb-guid>
    ```

1. From the admin console's **redis modules** tab, validate that these modules with their specific versions are loaded to the cluster.

1. If one or more of the modules/versions are missing or if you need help, [contact Redis support](https://redis.com/company/support/) before taking additional steps.