News · Commits

16th October 2026

DCP-o-matic 2.18.51 was released.

• Fixes for macOS 27 (Golden Gate) compatibility.
• Various fixes for the Disk Writer on Windows:
  • Fix corrupted writes on the second and subsequent DCPs copied between re-starts.
  • Eject drive on completion of the write.
  • Potential fixes for corrupted writes in some rare situations.
  • Make it harder to accidentally overwrite the C: drive.
• Fix reel errors due to allowing VF referencing in some cases where it should not be allowed.
• Preserve main picture active area from OVs in VFs.
• Allow user configuration of the full content title text.
• Re-use the OV's MainSoundConfiguration rather than making a new (probably wrong) one in a VF.
• Add option to put multiple subtitle languages into the ISDCF name.
• Allow export of only audio from projects.
• Updated nl_NL translation from Rob van Nieuwkerk.
• Updated sl_SI translation from Martin Srebotnjak.

Download it from here.

8th September 2026

DCP-o-matic 2.18.50 was released.

• Fix non-English languages on Windows, broken in the previous version.
• Fix layout of Interop/SMPTE option on macOS.
• Support Ubuntu 26.10 and Fedora 45.
• Remove Debian 11 support.

Download it from here.

6th September 2026

DCP-o-matic 2.18.49 was released.

• Fix installation when Smart App Control is enabled on Windows (#3175).
• Fix installation of the Disk Writer on Windows.
• Use consistent colours for peaks in the audio panel and the waveform plot.
• Some improvements to error logging.

Download it from here.

24th August 2026

DCP-o-matic 2.18.48 was released.

• Various improvements to the Windows installer: the various tools can now be installed individually, and desktop shortcuts are not installed by default. Also, uninstall should work better.
• Fix error when importing DCPs whose content type tag does not include a XML scope.
• Fix failure to create KDMs for Interop DCPs from the command line tool (#3173).
• Fix missing <Language> in CPLs for audio reels.
• Fix handling of leading and trailing whitespace in binary STL subtitle files.
• Updated nl_NL translation from Rob van Nieuwkerk.

Download it from here.

12th August 2026

DCP-o-matic 2.18.47 was released.

• Various improvements to reel setup when making VFs.
• Add some basic email address validity checking to prevent problems when sending KDM emails.

Download it from here.

1st August 2026

DCP-o-matic 2.18.46 was released.

• Updated nl_NL translation from Rob van Nieuwkerk.
• Updated de_DE translation from Roger Siegenthaler.
• Updated fa_IR translation from Soleyman Rahmani.
• Hopefully fix a range of long-standing bugs where encoding / playback would fail with media on removable or network drives.
• Fix position of punctuation in RTL subtitles in some cases.
• Force RTL layout when subtitles are marked RTL.
• Tolerate use of TTC (instead of TTF) as a font in a DCP.

Download it from here.

27th July 2026

DCP-o-matic 2.18.45 was released.

• Updated nl_NL translation from Rob van Nieuwkerk.
• Fix crash when loading only the left images for a 3D DCP (#3164).
• Build Fedora releases with support for Grok.
• Allow referencing an OV reel more than once (#3169).
• Add a hint when there will be too many PNG subs / fonts in a reel.
• Fix error when filling audio at the end of a film.
• Fix crash on closing projects (#3170) (GH#43).

Download it from here.

29th June 2026

DCP-o-matic 2.18.44 was released.

• Updated ru_RU translation from Евгений Дац.
• Updated ja_JP translation from 林雅成.
• Fix incorrect subtitle font choice in some cases (e.g. when loading a bold font), and possibly strange movement of subtitle texts between frames (#3129).
• Don't offer to use bitmapped DCP subtitle for closed captions (#2998).
• Fix incorrect progress bar with 3D encodes (#3166).
• Fix excessive use of memory when calculating hints with bitmap subtitles.
• Tell the user if they try to export subtitles when there are none.
• Basic .srt export (#3142).
• Add --dcp, --auto-play and --kdm options to player.

Download it from here.

2nd June 2026

DCP-o-matic 2.18.43 was released.

• Updated it_IT translation from Marco Ville.
• Fix crash when adding DCPs to the verifier.
• Some small speed-ups.

Download it from here.

25th May 2026

DCP-o-matic 2.18.42 was released.

• Fix various audio/video sync errors, particularly with the Apple Cinema Display (#3144) — big thanks to Ben Anderson for his help!
• Fix failure to update CCAP when seeking to an empty place (#3163).

Download it from here.

2 days ago	Put correct qualifier in VF's ISDCF name when using a pillarboxed OV (#3198).
2 days ago	Save new DCP parameters to the session file.
2 days ago	Fix creation of <Image> dummy files.
3 days ago	Update test references after MainMarkers intrinsic duration fix.
3 days ago	Bump private test hash.
3 days ago	using trimming.
4 days ago	Allow up to 512 for luminance.
4 days ago	White space: metadata_dialog.{cc,h}
6 days ago	Write email logs when sending test messages.
6 days ago	Keep cinema screens sorted like we do cinemas (#2836).
7 days ago	Fix incorrect duration of ReelMarker assets in CPLs.
7 days ago	Add button to copy PKL annotation texts to CPL.
7 days ago	Add button to copy CPL annotation texts to PKL.
12 days ago	Update editor title bar text on changing/saving the DCP.
12 days ago	White space.
12 days ago	Add DCP path to editor title bar.
13 days ago	Allow editing of PKL asset annotation texts.
13 days ago	Compress an if.
13 days ago	Whitespace tweaks.
13 days ago	Fix incorrect parameter ordering.
13 days ago	Remove unnecessary include.
13 days ago	Add ID to reel assets in the editor.
9 days ago	Fix restoration of override_path.
9 days ago	White space: test.{cc,h}
9 days ago	Maybe fix intermittent "mutex lock failed in pthread_mutex_lock: Invalid argument"
Version 2.18.51 released.
2 weeks ago	Supporters update.
2 weeks ago	Updated nl_NL translation from Rob van Nieuwkerk.
4 weeks ago	Pass new lwext4 error details to CopyError.
6 weeks ago	Bump lwext4 for some fixes:
4 weeks ago	White space: exceptions.{cc,h}
4 weeks ago	Missing space.
4 weeks ago	Better error.
5 weeks ago	Eject drive on completion of disk write.
5 weeks ago	Improve log.
5 weeks ago	Fix corrupted disk writes on second and subsequent runs on Windows (without restarting).
5 weeks ago	Cleanup: use consistent ifdef for Windows.
6 weeks ago	Fix doubled-up text.
6 weeks ago	Coalesce mount point lists for a given disk number.
6 weeks ago	Add some more logging.
6 weeks ago	Rename mp -> volume_mount_points.
2 weeks ago	Give mac-new .dmgs the correct name.
2 weeks ago	Supporters update.
2 weeks ago	Workaround bug in macOS 27.{0,1} causing crashes in locales with , decimal separator.
2 weeks ago	using cleanup.
2 weeks ago	Replace deprecated constructor use.
2 weeks ago	Bump libsub for macOS build fix.
4 weeks ago	Fix tests that run dcp_inspect on VFs.
4 weeks ago	Updated sl_SI translation from Martin Srebotnjak.
4 weeks ago	Add option to put multiple subtitle languages into the ISDCF name.
4 weeks ago	White space: isdcf_name_test.cc
4 weeks ago	Preserve main picture active area from OVs in VFs.
4 weeks ago	Allow user configuration of the full content title text.
4 weeks ago	White space: language_tag_widget.{cc,h}
4 weeks ago	White space: smpte_metadata_dialog.{cc,h}
4 weeks ago	Re-use the OV's MainSoundConfiguration rather than making a new (probably wrong) one.
4 weeks ago	Gather the main sound configuration from the CPL in use.
4 weeks ago	Replace references_dcp_{video,audio} with methods that return all the referenced DCPs.
4 weeks ago	Cleanup: compress an if.
5 weeks ago	Updated nl_NL translation from Rob van Nieuwkerk.
5 weeks ago	Supporters update.
6 weeks ago	pot / merge.
6 weeks ago	Fix bug allowing VF referencing too often.
6 weeks ago	Add some logging.
6 weeks ago	White space: reels_test.cc
6 weeks ago	using trimming.
6 weeks ago	Updated nl_NL translation from Rob van Nieuwkerk.
7 weeks ago	Allow export of only audio from projects.
7 weeks ago	Report errors from av_interleaved_write_frame().
7 weeks ago	Make some things static that can be.
7 weeks ago	Allow disabling video in the butler.
7 weeks ago	Make _video_codec_name optional.
7 weeks ago	Include trimming.
7 weeks ago	White space: ffmpeg_encoder_test.cc
7 weeks ago	Fix incorrect command-line help.
8 weeks ago	Remove support for Ubuntu 16.04.
Version 2.18.50 released.
8 weeks ago	Fix broken i18n on Windows.
8 weeks ago	Fix layout of Interop/SMPTE option on macOS.
8 weeks ago	Support Ubuntu 26.10.
8 weeks ago	Remove Debian 11 support.
8 weeks ago	Fix build on older boosts.
Version 2.18.49 released.
8 weeks ago	Using/include trimming.
8 weeks ago	Re-add missing dcpomatic2_disk.exe install.
8 weeks ago	Use consistent colours for peaks in the audio panel and the waveform plot.
8 weeks ago	White space: audio_panel.{cc,h}
8 weeks ago	Supporters update.
10 weeks ago	Make Windows Smart App Control accept DCP-o-matic (#3175).
9 weeks ago	Include/using trimming.
9 weeks ago	Report boost::filesystem errors better.
9 weeks ago	include cleanup.
9 weeks ago	boost -> dcp for filesystem.
9 weeks ago	Improve error logging.
Version 2.18.48 released.
10 weeks ago	Tidy up start_menu_shortcut() slightly.
10 weeks ago	Split everything out much more.
10 weeks ago	Try to ensure we're always putting things for all users.
10 weeks ago	Remove believed-pointless FINISH pages.
10 weeks ago	Try to simplify uninstaller a bit.