v7.40.0 released

Jun 24, 2026

You can download it from GitHub.

The highlights of this version are expanded compatibility and capabilities for OpenFX plugins and a new audio noise reduction filter and link.

Framework

  • Some fixes for win32_fopen().
  • Security fixes for time formatting in mlt_properties.
  • Security fix to disable deprecated ante & post properties in mlc_consumer.
  • Added more properties to metaschema.yaml (new version 7.2):
    • audio_formats
    • video_formats
    • layout-hint
    • hide-label
    • normalized_default

Modules

  • Added audio_formats and image_formats properties to all service metadata.
  • Many improvements to the openfx module:
    • fixed potential overflows in snprintf() calls
    • multi-threading: frame- and slice-based
    • many compatibility fixes
    • added support for 2D and 3D numeric parameters (uses mlt_rect)
    • fixed preview scaling
    • fixed the default for choice (values in metaschema.yaml) parameters
    • fixed some effects rendering upside-down.
  • Added rnnoise module for background audio noise reduction (depends on librnnoise).
  • Added HDR10 SMPTE ST 2084 (PQ) properties to the decklink consumer:
    • hdr_red_x
    • hdr_red_y
    • hdr_green_x
    • hdr_green_y
    • hdr_blue_x
    • hdr_blue_y
    • hdr_white_x
    • hdr_white_y
    • hdr_max_luminance
    • hdr_min_luminance
    • hdr_max_cll
    • hdr_max_fall
  • Added the .lot file name extension for the loader producer to use glaxnimate.
  • Visual quality improvements for animations in the qtblend filter and transition.
  • Updated spatialaudio module to the libspatialaudio 0.4.0 API.
  • Fixed a signed int overflow in pgm producer.
  • MSVC compatibility fixes for kdenlivetitle producer and frei0r, plusgpl, jackrack, openfx, rtaudio, & resample modules.
  • Fixed choppy playback and deadlocks in the decklink consumer.
  • Fixed libopus audio encoder warning about frame_duration in avformat consumer.
  • Fixed crash in avformat consumer with unsupported attached_pic format.
  • Fixed plugin bundles for vst2 filters on macOS.
  • Fixed the frame position in the consumer producer.
  • Hardened string formatting for metadata properties in the vorbis producer.
  • Fixed typewriter in qtext filter lags when rate properties changed.

Other

  • Skip Qt preflight for XML-only consumers in melt.

Search

Subscribe

Subscribe to News via RSS.

Recent Posts

About

MLT enables you to author, manage, and run multitrack audio/video compositions. Copyright © 2008-2026 by Meltytech, LLC.

Social Links