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

libopenmpt 0.8.10 (2026-10-31)

  • [Sec] SymMOD: Potential divison by 0 when trying to decode an embedded IMA ADPCM WAV sample claiming to contain 0 audio channels (r25831).

  • [Bug] SymMOD: It was possible that a fact chunk of an embedded WAV file claimed an impossibly big sample length for an IMA ADPCM sample, causing unnecessarily large memory allocations.

  • Volume column portamento effect memory was not updated properly during seeking, causing notes to continue playing at the wrong pitch.

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

Source code download links:

Binary download links:

Development library download links:

Documentation download links:

The OpenMPT/libopenmpt project also released an update to the old libopenmpt 0.6 stable branch:

libopenmpt 0.7.22 (2026-10-31)

  • [Sec] SymMOD: Potential divison by 0 when trying to decode an embedded IMA ADPCM WAV sample claiming to contain 0 audio channels (r25832).

  • [Bug] SymMOD: It was possible that a fact chunk of an embedded WAV file claimed an impossibly big sample length for an IMA ADPCM sample, causing unnecessarily large memory allocations.

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 0.6 stable branch:

libopenmpt 0.6.31 (2026-10-31)

  • [Sec] SymMOD: Potential divison by 0 when trying to decode an embedded IMA ADPCM WAV sample claiming to contain 0 audio channels (r25833).

  • [Bug] SymMOD: It was possible that a fact chunk of an embedded WAV file claimed an impossibly big sample length for an IMA ADPCM sample, causing unnecessarily large memory allocations.

Source code download links:

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

The security issue fixed in libopenmpt 0.8, 0.7, 0.6 does not affect the earlier libopenmpt 0.5, 0.4 branches.

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

  • libopenmpt 0.8.10
    • Current stable version.
    • Receives security updates.
    • Receives minor playback fixes.
  • libopenmpt 0.7.22
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.6.31
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.5.44
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.4.56
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.9 (SVN trunk)
    • development
    • security updates
    • playback fixes
    • new features
    • new file formats
  • libopenmpt-modplug 0.8.9.0-openmpt1
    • Receives security updates.
  • libopenmpt-modplug 0.8.8.5-openmpt1
    • Receives security updates.

Please update to the newest versions.