# Lenses Configuration

Starting from Lenses 5.0, Lenses distinguishes between static and dynamic configuration.

**Dynamic configuration** allows you to apply changes without a need to restart Lenses.

All core services (Kafka brokers, Schema Registry, Zookeeper, Kafka Connect, and Kerberos) are configured in a fully dynamic way with *Connections*. *Connections* can be managed (added, updated, removed) without restarting Lenses, and any changes are applied immediately. Additionally, license management can be updated via the UI or APIs.

**Static configuration** refers to configuration options that are added to the `lenses.conf` file. A restart of Lenses is required to apply the changes made to this file.