# MariaDB MaxScale 2.0.4 Release Notes

Release 2.0.4 is a GA release.

This document describes the changes in release 2.0.4, when compared to
release [2.0.3](MaxScale-2.0.3-Release-Notes.md).

If you are upgrading from release 1.4, please also read the release
notes of release [2.0.3](./MaxScale-2.0.3-Release-Notes.md),
release [2.0.2](./MaxScale-2.0.2-Release-Notes.md),
release [2.0.1](./MaxScale-2.0.1-Release-Notes.md) and
[2.0.0](./MaxScale-2.0.0-Release-Notes.md).

For any problems you encounter, please submit a bug report at
[Jira](https://jira.mariadb.org).

## Changed Features

- The dbfwfilter now rejects all prepared statements instead of ignoring
  them. This affects _wildcard_, _columns_, _on_queries_ and _no_where_clause_
  type rules which previously ignored prepared statements.

- The dbfwfilter now allows COM_PING and other commands though when
  `action=allow`. See [../Filters/Database-Firewall-Filter.md](documentation)
  for more details.

- The MariaDB Connector-C was upgraded to a preliminary release of version 2.3.3 (fixes MXS-951).

## Bug fixes

[Here](https://jira.mariadb.org/issues/?jql=project%20%3D%20MXS%20AND%20issuetype%20%3D%20Bug%20AND%20status%20%3D%20Closed%20AND%20fixVersion%20%3D%202.0.4)
is a list of bugs fixed since the release of MaxScale 2.0.3.

* [MXS-1111](https://jira.mariadb.org/browse/MXS-1111): Request Ping not allowed
* [MXS-1082](https://jira.mariadb.org/browse/MXS-1082): Block prepared statements
* [MXS-1080](https://jira.mariadb.org/browse/MXS-1080): Readwritesplit (documentation of max_slave_replication_lag)
* [MXS-951](https://jira.mariadb.org/browse/MXS-951): Using utf8mb4 on galera hosts stops maxscale connections

## Known Issues and Limitations

There are some limitations and known issues within this version of MaxScale.
For more information, please refer to the [Limitations](../About/Limitations.md) document.

## Packaging

RPM and Debian packages are provided for the Linux distributions supported
by MariaDB Enterprise.

Packages can be downloaded [here](https://mariadb.com/resources/downloads).

## Source Code

The source code of MaxScale is tagged at GitHub with a tag, which is derived
from the version of MaxScale. For instance, the tag of version `X.Y.Z` of MaxScale
is `maxscale-X.Y.Z`.

The source code is available [here](https://github.com/mariadb-corporation/MaxScale).