The first maintenance release of the 21.08 series is out fixing regressions to Fade transition and Position and Zoom effect (when applied to bin clips) also, on Windows, Text to Speech is working again. This version adds the ability to import motion tracked data to the Alpha Shapes and Alpha Shapes (mask) effects.
Log:
- Compile MLT with GCC 9 – fixes brightness effect corruption. Commit.
- Fix mix crossfade sometimes using wrong order (starting at 100% and ending at 0%) instead of reverse. Commit.
- Upgrade document version and fix custom affine effects for MLT 7 when. Commit.
- Make it possible to import mlt rect keyframes to frei0r.alphaspot. Commit.
Outlook for the next major release
In other news work on the 21.12 release has started with some very exciting features coming! Below is the initial implementation of the new multicam editing tool.

The Slip mode of the upcoming Advanced Trimming feature is done, up next is Ripple. ?
Hi, I’m glad the 21.08.1 version has been released
I don’t know if it’s happening to other people, but it’s impossible to download the version, too slow, reaching 13KB/s… it’s happened other times… to download the nightly build version is normal. I’m trying, but it ends up giving an error in the download. This is not happening to me for other sites and downloads… just to download version 21.08.1
Which download? I downloaded the AppImage a couple of hours ago without a problem. It seems to be a problem with some servers. Please try later on.
for Windows
Am about to download this. Thanks, guys.
i cant start the new version of kdenlive on the kdeneon. i have installed the mlt. on the console gave me the error : cant start drkonqi .
What i can do ?
Please try with the PPA the Flatpak or the AppImage from the download page.
Better and better!
Unfortunately version 21.08.1 didn’t solve the motion tracking problem I started having with version 21.08.0, it just doesn’t analyze, doesn’t generate data, doesn’t track.
Maybe next time!
Oh man in my environment (linux, kdenlive 21.08.1) no motion tracker and i don’t know why
Are you using the AppImage? If not do you have opencv installed?
Why can’t I maximize kdenlive’s window? Ever since 21.08 I am not able to maximize the window… Platform : Arch, Cinnamon.
CTRL + SHIFT + F doesn’t work ?
I had a similar problem. It was solved by resetting the layout.
Love your work guys! I’ll donate ASAP!
The day that multicam is implemented and working good enough I will switch back to Kdenlive . At the moment I´m doing multicam with Lightworks or Davinci Resolve.
There were some white flickering in frame blending of time remapping.
wow nice software
WOOW! great! we are waiting for it!
Still issues with inserting clips from the Library.
As J.R. Regenold stated on May 23, 2020 at 11:26 AM, since the release 20.04.01 there is a bug when you try to insert clips from the Library to the Project Bin and Timeline
(https://kdenlive.org/en/2020/05/kdenlive-20-04-1-released/#:~:text=on-,May,-23%2C%202020%20at%2011%3A26).
The problem still persists, even with latest release 21.08.1.
If you press “Add Clip to Project” and e.g. the clip the in the library was recorded with a different FPS value, then you get the error message “Cannot open file …”. With release 20.04.00 you still received the hint that the Playlist has a different framerate instead of the generic open file message.
However, even worse is the matter of fact that Kdenlive crashes when you try to add a clip to the timeline. Up to release 20.04.00 there have been more situations where you could successfully add clips from the Library to the timeline and less situations where Kdenlive crashes.
Note: I am using the Standalone Kdenlive version under Windows 10.
Titles, still does not work for show background!
Also had no problem downloading and installing on windows Yesterday.
I had to go back from 21.08.0 to 21.04.0 because chroma-key wasn’t working. I saw on the bug report page someone already posted about it with examples so I didn’t submit a ticket. When will this get fixed? I lost several project files because I reverted and couldn’t open the projects I was working on in 21.08.0. Luckily I had rendered them before I decided to revert.
Could you try with tomorrow’s nightly appimage build please?
When making proxy clips in KDEnlive with vaapi I get all kinds of errors. I have no problems making proxy clips with vaapi in Cinelerra. Can I tell KDEnlive to use proxy clips made with this other programm? How?
I am very grateful to the Kdenlive team as this software allows me to earn a salary every month. Today, as I live in Brazil, I am unable to contribute financially to development, but I would like to make a suggestion. If possible such development, it would be very interesting if the transformations were more customizable and controllable, through graphics, as happens in Olive Alpha, where there is the graphic editor of the keyframe. This update would open up several animations and transitions ports for us editors. I thank the attention.
There are plans for that but further down the roadmap. Currently focus is in adding advanced trimming and nested timelines. (Temos um grupo brazuca de Kdenlive, entra lá. 😉 )
What a joy, thanks for the feedback! Where do I find this group?
Portuguese group: https://t.me/kdenliveportugues
General group: https://t.me/kdenlive
Your program is very good
But as a beginner, ease is the most important
I would like to add a tool that makes it easier to use, which is the selection with the mouse, such as (Olive Video Editor – Videopad)
I hope you will also add a new place (new sequence) (videopad)
You can just press shift + drag left mouse buttom and you’ll be able to rubber select the clips in the timeline…
I would like to contribute, stating that in the new version for linux (mint), the stabilization and speed control in Project bin, are with a time limit bug.
kdenlive v21.08.1 has a significant bug with 4K preview rendering. It does the actual output rendering perfectly and preview is also perfect IF PREVIEW RENDERING is OFF. If it is ON then the scaling of the pre-rendered section is 2K, magnifying the view 2x. I have, of course, tried every trick in the book that I know of to solve this and I emphasise that the final rendered output is fine.
Is this a regression or an underlying issue? It makes the program unusable for me.
Are you using proxies? Might be a regression, could you please open a report and share the link so we can look into it?
Thanks for replying. I am still pursuing this as time allows. If I come up with anything useful I’ll share it of course.
Thanks.
No – with or without proxies it’s the same. When I turn on preview rendering I get this error message:
Using AVStream.codec to pass codec parameters to muxers is deprecated,
use AVStream.codecpar instead. [mov @ 0000000006211500]
but clearly I haven’t a clue how to solve that.
Thanks.
Bug report here:
https://bugs.kde.org/show_bug.cgi?id=443250
I’m sorry as this may be off topic to this version of Kdenlive.
But, when is Kdenlive 21.08.2 being released?
It isn’t in the Ubuntu PPA, as yet either.
Thank you all for a great video editor. 🙂
Since some members of the team are in holidays at the moment the release is a bit delayed and I can’t give you another answer than “soon” within the next days. However the Flatpak is already updated and for windows you can already find the files at https://download.kde.org/stable/kdenlive/21.08/windows/ For the Appimage you have o be a bit more patient…
Thank you for your reply – much appreciated indeed. 🙂