Problem submissions for the 2026 MiniZinc Challenge are currently open! See the call for problems for more information.

Downloads

Official binary packages are provided for Windows, macOS and Linux.
These contain MiniZinc 2.9.5, the MiniZinc IDE 2.9.5, as well as several state of the art solvers.
For detailed installation instructions, see the documentation.

Both the compiler tool chain and the IDE are available as free and open source software.
Have a look at our License Information page for the details.

The MiniZinc compiler and IDE

The compiler is the heart of the MiniZinc tool chain. It translates constraint models into FlatZinc, a language that is understood by a wide range of solvers.

MiniZinc comes with a simple Integrated Development Environment, the MiniZinc IDE, which makes it easy to develop and run constraint models.

Solvers

A number of solvers are included in the official binary packages:

MiniZinc can also interface with the following solvers if installed:

Additionally, many other compatible solvers can be installed, including:

Note that if you build MiniZinc from source, you will have to install any desired solvers yourself.

The MiniZinc IDE

Reporting issues

We are grateful for feedback on MiniZinc, including bug reports, feature requests and ideas for improvements.

For general discussions about MiniZinc, please use the discussion forum.

To report an issue, please use the following issue trackers:

Releases

The latest release of MiniZinc is version 2.9.5, released 23 January 2026.

  • Automatically detect Gurobi 13.0 and potential future versions.
  • Enable projection of arrays of tuples and records using field access notation (issue 970).
  • Enable anonymous assignment generators in comprehensions.
  • Rewrite regular to fzn_regular instead of fzn_regular_set when possible, in order to improve performance for solvers that do not support fzn_regular_set natively (issue 981).
  • Add zip and unzip functions to the standard library (issue 967).
  • Add enum constructors lifted to arrays (issue 965).
  • Add sliding_among constraint to the standard globals library (issue 960).
  • Improve support for input of enum definitions using using JSON data files.
  • Plus 19 bugfixes!

See the full changelog.

Development builds

Unstable development builds with upcoming bugfixes and features are available on GitHub.

Documentation for the latest development version of MiniZinc is available here.
For a list of bugfixes/changes please refer to the changelog.

Previous releases

View older releases.