# Schemas

{% hint style="success" %}
To delete schemas you need to enable **`lenses.schema.registry.delete`** in **lenses.conf**.
{% endhint %}

## Creating schemas

To create a new schema, select **Environments->\[Your Environment]->Workspace->New Schema** and add your schema.

## Viewing schemas

To view the schema associated with a topic, select the **Schema** tab. Here you can view the schema for both the key and the value of the topic.

## Editing Schemas

To edit a schema select either the key or value schema. The schema editor will be expanded, click Edit to change the schema.

## Searching for schemas or fields

To list schemas go to **Environments->\[Your Environment]->Workspace->Schema Registry**. Lenses will show the current schemas, you can search in schemas for fields and schema names as well as filtering by format and tags.

## Evolving schemas

To evolve a schema, select the schema and select **Edit**. In the editor apply your changes. If the changes match the evolution rules the changes will be saved and a new version created.

## Changing compatibility

To change the compatibility of a schema, select the schema and from the actions menu select **Change compatibility**.