# EventStoreDB 21.6 Documentation
Welcome to the EventStoreDB 21.6 documentation.
EventStoreDB is a database designed for Event Sourcing (opens new window). This documentation introduces key concepts of EventStoreDB and explains its installation, configuration and operational concerns.
EventStoreDB is available as both a Open-Source and an Enterprise versions:
- EventStoreDB OSS is the open-source (opens new window) and free to use edition of EventStoreDB.
- EventStoreDB Enterprise is available for customers with EventStoreDB paid support subscription (opens new window). EventStoreDB Enterprise adds enterprise-focused features such as LDAP integration, correlation event sequence visualisation and management CLI.
# Getting started
Get started by learning more about principles of EventStoreDB, Event Sourcing, database installation guidelines and choosing the client SDK.
# EventStoreDB community
Users of the OSS version of EventStoreDB can use the community forum (opens new window) for questions, discussions and getting help from community members.
# Enterprise customers
Since EventStoreDB is the open-source product, we track most of the issues openly in the EventStoreDB repository on GitHub (opens new window). Before opening an issue, please ensure that a similar issue hasn't been opened already. Also, try searching closed issues that might contain a solution or workaround for your problem.
When opening an issue, follow our guidelines for bug reports and feature requests. By doing so, you would greatly help us to solve your concerns in the most efficient way.