3.69.0

[mifi]

• Add lossless cropping & aspect ratio override via bitstream and container metadata Lossless crop, flip, rotate, aspect ratio in video bitstream or container format metadata #643
• Alow shifting tracks for each file (-itsoffset) Delay or advance (shift/sync) individual tracks (+- seconds) #216
• Add "decimate video" tool to filter away all non-keyframes Drop all non-keyframes to speed up long footage #2111
• Add Windows ARM 64 native build with native ffmpeg
• Move timecode out of timeline and make it copy-able Current time on a timeline is not visible at times due to its mouse over (fade/fade-out/hiding) effect #2592 Interface modification #2691 Can I move the time out of the seek bar? #2800 Timeline improvements #483 Allow the ability to copy the current frame number #2808
• Upgrade Electron to latest
• Add new "opposing" align mode Align Segment Times to Keyframes – Add "Start to Previous, End to Next" option #2654
• Add FFmpeg -hwaccel auto setting for hardware acceleration of certain operations
• Add API events export-start and export-complete
• Allow deleting track metadata Delete Tags #2819
• Improve shift segments dialog Feature request: Ability to set shift segment with separate values for start and end in the same window #2839
• Show keyboard shortcuts inside button tooltips in UI
• Warn if trying to cut with too few keyframes around cutpoint Warn user if they try to cut between keyframes #516 Possible 3.68.0 regression: Exports entire vid, no cuts #2780 This software is garbage, at least currently #2756
• (Linux) include app name in notification Notifications should send both body and summary #2794
• Pull latest translations

Other notable changes:

• Advanced output directory selector Working directory / export folder workflow #2101 Different output/working directory/folder for different kinds of generated files #2115 QoL improvements with file picker, default paths, filenames #2755
• increase max file name length to 250 (truncation) Exporting MP4 segments as multiple files gives them ".M" file formats instead of MP4 (file name length?) #2779
• don't reset playback speed when using special playback modes Play selected segments in order (no reset speed) #2889
• preserve chapters when merging files that already have chapters
• don't merge adjacent segments in combineOverlappingSegments Does "Combine Overlapping Segments" also merge adjacent segments? (MP4) #2896
• don't transfer segment name when filling gaps fill gaps between labeled segments. #2754
• always scroll up to zoom in "Invert timeline trackpad/wheel direction?" should not invert the zoom direction #2703 Mousewheel inverted between releases #2786
• increase max keyframes to 10000
• Don't bind ctrl/cmd+c by default (they interfer with copying text)
• Many other improvements and fixes

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This discussion was created from the release 3.69.0.

[harshness]

On my Windows 10 Pro machine (22H2), the program won't open.

[mifi]

On my Windows 10 Pro machine (22H2), the program won't open.

But v3.68 does open? Any errors? See also #2568 #2215

[harshness]

Version 3.68 works as expected. Version 3.69 does nothing.

When run from a CMD shell as Administrator, the program runs with the following progress reporting:

2026-06-05T21:53:08.097Z info: LosslessCut version 3.69.0 { isDev: false }
2026-06-05T21:53:08.136Z info: Initialized config store
2026-06-05T21:53:08.137Z info: Waiting for app to become ready
2026-06-05T21:53:08.139Z info: CLI arguments { _: [] }
2026-06-05T21:53:08.436Z info: Current version 3.69.0
2026-06-05T21:53:08.436Z info: Newest version 3.69.0
2026-06-05T21:53:08.773Z info: ffmpeg -f lavfi -i nullsrc=s=256x256:d=1 -f null -
2026-06-05T21:53:08.827Z info: ffprobe -v 0 -of json -show_program_version

After this, the GUI opens. When I close the GUI, the shell prompt doesn't appear, so there's likely an issue there too.

[mifi]

After this, the GUI opens

Not sure I understand. which GUI opens? I thought LosslessCut GUI won't open?

[harshness]

The LosslessCut GUI won't open when I click on the executable's icon (the usual way that Windows programs are started). It does start when I run the executable from a command line (but as I noted, it doesn't exit cleanly).

[mifi]

Oh, that's very odd. I really have no idea why. I will see if any other people report the same problem (you're the only one so far)

[harshness]

I note that I tried running the program from desktop with all firewall and anti-??? software disabled. The result was the same.

[c0nsult1]

ffmpeg not included with the 3.69 release?

reosurces\ffmpeg not there...

FFmpeg is non-functional
ExecaError: Command failed with exit code 1: "C:\Users\alex\AppData\Local\LosslessCut\resources\ffmpeg.exe" -f lavfi -i "nullsrc=s=256x256:d=1" -f null -

'C:\Users\alex\AppData\Local\LosslessCut\resources\ffmpeg.exe' is not recognized as an internal or external command,\r
operable program or batch file.
at getFinalError (file:///C:/Users/alex/AppData/Local/LosslessCut/resources/app.asar/node_modules/execa/lib/return/final-error.js:6:9)
at makeError (file:///C:/Users/alex/AppData/Local/LosslessCut/resources/app.asar/node_modules/execa/lib/return/result.js:108:16)
at getAsyncResult (file:///C:/Users/alex/AppData/Local/LosslessCut/resources/app.asar/node_modules/execa/lib/methods/main-async.js:168:4)
at handlePromise (file:///C:/Users/alex/AppData/Local/LosslessCut/resources/app.asar/node_modules/execa/lib/methods/main-async.js:151:17)

App state:
{
"err": {
"isTerminated": false,
"failed": true,
"timedOut": false,
"isCanceled": false,
"exitCode": 1
},
"appPath": "C:\Users\alex\AppData\Local\LosslessCut\resources\app.asar",
"platform": "win32",
"arch": "arm64",
"version": "3.69.0"
}

[mifi]

Where did you download losslesscut and how did you install it?

[c0nsult1]

Directly from github : https://github.com/mifi/lossless-cut/releases/tag/v3.69.0 LosslessCut-win-arm64.7z

No installer, just extract to c:\users\alex\appdata\local\losslesscut

I copied an arm version of ffmpeg to resources and it works now, but just a heads up if anyone else has the issue.

[mifi]

I see there was a bug with the win arm64 build. should now be fixed in the latest nightly build. thanks!