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

libopenmpt 0.5.13 (2021-11-14)

  • [Bug] Fixed various undefined behaviour found with ubsan.

  • IMF: Change envelope interpretation to be more like in XM instead of IT and tighten header validation.
  • MED: Some samples had a ping-pong loop when there should be no loop at all.
  • MT2: Ignore incorrect drums chunk size in early MT2 files (fixes e.g. “A little Rock” by Csumi).
  • MT2: Work around initial master volume of 0 used in some files that apply a fade-in a the song start using track automation that would stay silent forever otherwise (track automation is currently not supported).

  • OKT: Apply portamento on every tick.

  • mpg123: Update to v1.29.2 (2021-10-23).

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 0.4.25 (2021-11-14)

  • [Bug] Fixed various undefined behaviour found with ubsan.

  • IMF: Change envelope interpretation to be more like in XM instead of IT and tighten header validation.
  • MT2: Ignore incorrect drums chunk size in early MT2 files (fixes e.g. “A little Rock” by Csumi).

  • MT2: Work around initial master volume of 0 used in some files that apply a fade-in a the song start using track automation that would stay silent forever otherwise (track automation is currently not supported).

  • mpg123: Update to v1.29.2 (2021-10-23).

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 0.3.34 (2021-11-14)

  • [Bug] Fixed various undefined behaviour found with ubsan.

  • IMF: Change envelope interpretation to be more like in XM instead of IT and tighten header validation.
  • MT2: Ignore incorrect drums chunk size in early MT2 files (fixes e.g. “A little Rock” by Csumi).

  • MT2: Work around initial master volume of 0 used in some files that apply a fade-in a the song start using track automation that would stay silent forever otherwise (track automation is currently not supported).

  • mpg123: Update to v1.29.2 (2021-10-23).

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:

  • 0.5.13
    • Current stable version.
    • Receives security updates.
    • Receives minor playback fixes.
  • 0.4.25
    • Old stable version.
    • Receives security updates.
    • Receives trivial bug fixes.
  • 0.3.34
    • 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.