# Copyright and licensing information

## Documentation licensing

Percona Server for MySQL documentation is (C)2009-2023 Percona LLC and/or its affiliates and is distributed under the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).

## Software license

*Percona Server for MySQL* is built upon MySQL from Oracle. Along with making our own
modifications, we merge in changes from other sources such as community
contributions and changes from MariaDB.

The original SHOW USER/TABLE/INDEX statistics code came from Google.

Percona does not require copyright assignment.

See the COPYING files accompanying the software distribution.