PostgreSQL License

August 13, 2026: PostgreSQL 18.6, 17.11, 16.15, 15.19, 14.24 and 19 Beta 3 Released!

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# License **

PostgreSQL is released under the PostgreSQL License,
a liberal Open Source license, similar to the BSD or MIT licenses.

PostgreSQL Database Management System

(also known as Postgres, formerly as Postgres95)

Portions Copyright © 1996-2026, The PostgreSQL Global Development Group

Portions Copyright © 1994, The Regents of the University of California

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose, without fee, and without a written agreement
is hereby granted, provided that the above copyright notice and this
paragraph and the following two paragraphs appear in all copies.

IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

## Will PostgreSQL ever be released under a different license?

The PostgreSQL Global Development Group remains committed to making
PostgreSQL available as free and open source software in perpetuity. There are
no plans to change the PostgreSQL License or release PostgreSQL under a
different license.

If you would like to read more about this topic, then please take a look at
the mailing list archives at one of the many discussions
on this subject.