See System Requirements for current database support.

MT5 ¶

• SQLite & PostgreSQL no longer supported in MT core.

  To speed up development and quality-assurance testing, core support for SQLite and PostgreSQL have been dropped.

  Note: If needed, the plugin architecture since MT4.0 supports the ability to create a database drivers for these databases. The Enterprise Pack has an example of this as it provides Oracle database support.

MT4 ¶

We have made a significant number of improvements to Movable Type's database access layer that requires the use of SQL statements found only in later versions of MySQL. For that reason, the following databases are no longer supported:

• Berkeley DB

• MySQL 3.x and older

  MySQL 4.0 users should upgrade to MySQL 4.1 or greater

  While we support MySQL 4.0 we recommend that users upgrade to a newer version of MySQL for the following reasons:

  • MySQL 4.0 is not officially supported by the manufacturer.
  • There are many database and SQL optimizations found in MySQL 4.1 which are utilized in Movable Type 4+.