Kdenlive 25.08.0 released - Kdenlive

kdenlive · August 18, 2025, 1:29pm

The Kdenlive team is happy to announce the release of version 25.08.0 packed with over 300 commits and fixing more than 15 crashes. This release has no major shiny new features, just a ton of bug fixes and lots of polishing to give you a pleasant editing experience in the summer heat.

This is a companion discussion topic for the original entry at https://kdenlive.org/news/releases/25.08.0

Paul_West · August 18, 2025, 3:21pm

In Windows version; libopentimelineio.dll is missing.

Error status: 0xc0e900007

I have not yet tried the Linux version, but, I hope that the above helps.

Paul_West · August 18, 2025, 3:41pm

As an update, Kdenlive 25.08.0 works fine in Ubuntu Studio 24.04.3 LTS AppImage version.

entone · August 18, 2025, 3:47pm

Hi, I noticed an issue when color grading. Adding a “Curve” the channels default to the display variables for showing the curve preview, rather than the channels to apply the curve to. Existing curves show the channels properly. If I resize the effect area, it re-renders and shows the proper dropdowns.

AppImage PopOS 22.04

Eugen_Mohr · August 18, 2025, 3:58pm

I checked both Kdenlive 25.08.0 Windows versions (installed, standalone) and “libopentimelineio.dll” is in the bin folder. Download the standalone version and take “libopentimelineio.dll” and put it into the folder Kdenlive/bin.

mardelle · August 18, 2025, 4:21pm

Thanks for your feedback. I cannot reproduce this problem. Can you reproduce when starting a new project ? With the 25.08 AppImage ?

entone · August 18, 2025, 4:51pm

Yes, same thing happens in a new project. This didn’t happen in 25.03, however I had another issue with curves in 25.03 that is now resolved.

northlean · August 18, 2025, 7:36pm

You all deserved a relaxing summer after the hard work finishing 25.03

Anything cooking right now for 25.12? Or is that possibly going to also be a bug fix with next big thing planned for 26.03?

northlean · August 18, 2025, 8:24pm

I found a regression that never happened in 25.03 because it’s reproducible every single time. I know it’s reproducible because every single time I go through the steps, the following block of stdout messages get printed on my terminal emulator:

:::: DELETING ABSTRACT PYTHONN INMTERRFACE.....
QObject: Cannot create children for a parent that is in a different thread.
(Parent is MeltTask(0x7f09a5a28f20), parent's thread is QThread(0x2fe31f10), current thread is QThreadPoolThread(0x7f09a7342e70)
::: // STARTING MELT JOB:  QList("-loglevel", "error", "xml:/tmp/TDRzdC.mlt", "-consumer", "avformat:/home/[MY USERNAME]/.cache/kdenlive/1755547162907/masks/source-frames/%05d.jpg", "start_number=0", "progress=1", "-preset", "stills/JPEG") 
FOR FILE:  "/tmp/TDRzdC.mlt"
:::: DELETING ABSTRACT PYTHONN INMTERRFACE.....
qrc:/qt/qml/org/kde/kdenlive/MonitorAutomask.qml:307:13: QML Image: Cannot open: file:///home/[MY USERNAME]/.cache/kdenlive/1755547162907/masks/source-frames/preview-00000.png
 OUTPUT READREADY :  "GPU MEMINFO: 1774125056 - 2081095680"
 OUTPUT READREADY :  ""
 OUTPUT READREADY :  ""
 OUTPUT READREADY :  ""
 OUTPUT READREADY :  ""
===== SAM SCRIPT TERMINATED ========
===== SAM SCRIPT TERMINATED ========
===== SAM SCRIPT TERMINATED ========
===== SAM SCRIPT TERMINATED ========
===== SAM SCRIPT TERMINATED ========
:::: UPDATING MONITOR DISPLAY INFO!!!!!!!!!!!!!!
XXXXXXXXXXXXXXXXXXX

Here is what you must do:

(Not necessary, but nuke your .cache/kdenlive and .local/share/kdenlive to ensure you start fresh, I used the appimage. Steps might be different if flatpak or native package).
Use the settings window to setup SAM-2, I also installed the “large” model at a later point to see if the tiny one wasn’t powerful enough to do a 7 second clip.
Select your clip.
Under effects, click on the “Create an object mask” button, then click the + button to make a new mask.
You’ll see the message it’s extracting the clips and the canvas will have a red border. Give it about 10 seconds and it will show a closable message the mask generation has crashed.

So yeah, a regression slipped through the cracks. If you want more info, let me know.

Paul_West · August 21, 2025, 9:16am

Hi Eugen,

Thank you for your reply.

As a further update, the Standalone version on Windows 11 Home Edition, works fine now.

Thank you!

berndmj · August 21, 2025, 2:25pm

If this is reliably reproducible, please open a bug report (instructions here). Thanks!

GaryB · August 21, 2025, 8:37pm

Used the new version for a couple of small videos today. All good so far. A massive thank you to the developers for an amazing program.

stephenesseenyne · August 26, 2025, 7:29am

A much improved version of the world’s best free and open source NLE

renamed_kdenlive · September 15, 2025, 8:30pm

the audio mixer now looks like in professional audio software

GaryB · September 16, 2025, 4:53pm

24.08.1 is now on the download server. Assume they’re compiling the release info ATM.

berndmj · September 16, 2025, 6:31pm

There are still some issues with major distros, so I strongly advise against using it. Just wait until the official release announcement is posted on Kdenlive’s home page and the various socials. Thanks!

Bartoloni · September 18, 2025, 9:14am

the 25.08.1 for windows is freezing when importing a clip that needs a transcoding.