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

libopenmpt 0.8.5 (2026-03-22)

  • [Sec] Possible out-of-bounds sample data read in a specific combination of reverse sample playback + offset past sample loop. (r25042).

  • MOD: ProTracker arpeggio wrapraound results in an effective period of 65536 on Paula, not pausing the sample entirely.

  • ULT: Loop points were incorrectly limited for 16-bit samples.

  • zlib: Update to v1.3.2 (2026-02-17).
  • miniz: Update to v3.1.1 (2026-02-03).

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 0.7.18 (2026-03-22)

  • [Sec] Possible out-of-bounds sample data read in a specific combination of reverse sample playback + offset past sample loop. (r25043).

  • MOD: ProTracker arpeggio wrapraound results in an effective period of 65536 on Paula, not pausing the sample entirely.

  • ULT: Loop points were incorrectly limited for 16-bit samples.

  • zlib: Update to v1.3.2 (2026-02-17).
  • miniz: Update to v3.1.1 (2026-02-03).

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 0.6.27 (2026-03-22)

  • [Sec] Possible out-of-bounds sample data read in a specific combination of reverse sample playback + offset past sample loop. (r25044).

  • MOD: ProTracker arpeggio wrapraound results in an effective period of 65536 on Paula, not pausing the sample entirely.

  • ULT: Loop points were incorrectly limited for 16-bit samples.

  • zlib: Update to v1.3.2 (2026-02-17).
  • miniz: Update to v3.1.1 (2026-02-03).

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 0.5 stable branch:

libopenmpt 0.5.41 (2026-03-22)

  • [Sec] Possible out-of-bounds sample data read in a specific combination of reverse sample playback + offset past sample loop. (r25045).

  • MOD: ProTracker arpeggio wrapraound results in an effective period of 65536 on Paula, not pausing the sample entirely.

  • ULT: Loop points were incorrectly limited for 16-bit samples.

  • zlib: Update to v1.3.2 (2026-02-17).

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 0.4.53 (2026-03-22)

  • [Sec] Possible out-of-bounds sample data read in a specific combination of reverse sample playback + offset past sample loop. (r25046).

  • MOD: ProTracker arpeggio wrapraound results in an effective period of 65536 on Paula, not pausing the sample entirely.

  • ULT: Loop points were incorrectly limited for 16-bit samples.

  • zlib: Update to v1.3.2 (2026-02-17).

Source code download links:

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

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

  • libopenmpt 0.8.5
    • Current stable version.
    • Receives security updates.
    • Receives minor playback fixes.
  • libopenmpt 0.7.18
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.6.27
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.5.41
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • libopenmpt 0.4.53
    • 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.