The OpenMPT/libopenmpt project released the latest stable libopenmpt version:

libopenmpt 0.5.2 (2020-08-30)

  • [Change] Makefile CONFIG=emscripten now supports EMSCRIPTEN_TARGET=all which provides WebAssembly as well as fallback to JavaScript in a single build.

  • [Regression] Makefile CONFIG=emscripten does not support EMSCRIPTEN_TARGET=asmjs or EMSCRIPTEN_TARGET=asmjs128m any more because support has been removed from current Emscripten versions.
  • [Regression] Support for Emscripten versions older than 1.39.7 has been removed.

  • PP20: The first few bytes of some files were not decompressed properly, making some files unplayable (depending on the original format).

The changelog for older versions can be found at https://lib.openmpt.org/doc/changelog.html .

Source code download links:

Documentation and binary downloads can be found at the libopenmpt website at https://lib.openmpt.org/libopenmpt/.


The OpenMPT/libopenmpt project also released an update to the old libopenmpt 0.4 stable branch:

libopenmpt 0.4.15 (2020-08-30)

  • PP20: The first few bytes of some files were not decompressed properly, making some files unplayable (depending on the original format).

Source code download links:

Documentation and binary downloads can be found at the libopenmpt website at https://lib.openmpt.org/libopenmpt/.


The OpenMPT/libopenmpt project also released an update to the old libopenmpt 0.3 stable branch:

libopenmpt 0.3.24 (2020-08-30)

  • PP20: The first few bytes of some files were not decompressed properly, making some files unplayable (depending on the original format).

Source code download links:

Documentation and binary downloads can be found at the libopenmpt website at https://lib.openmpt.org/libopenmpt/.


The following libopenmpt versions are currently supported with security fixes by the OpenMPT/libopenmpt project:

  • 0.5.2
    • Current stable version.
    • Receives security updates.
    • Receives minor playback fixes.
  • 0.4.15
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • 0.3.24
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • 0.6 (SVN trunk)
    • development
    • security updates
    • playback fixes
    • new features
    • new file formats

Please update to the newest versions.