Kdenlive 15.04.0 released

The Kdenlive team is happy to announce the release of Kdenlive 15.04.0. While there are very few new features in this release, it is a huge step towards a bright future!

Kdenlive is now an official KDE application

This has several implications:

  • We fully benefit from KDE's infrastructure, which means less worries for the developpers.
  • We stick to KDE Applications release schedule, which means one bugfix release every month, one feature improved version every 4 months. That's a big change from the previous random release every year or so. This is possible because the KDE team takes care of the release, not our small dev team, so a big thank you to KDE.
  • We now use KDE's bugtacker at
  • We benefit from KDE's build servers and team, which means that we might in the future have Mac OS and Windows versions without too much efforts from the dev team.
  • We can now be part of the Google Summer Of Code.
  • We have adopted the KDE Applications numbering scheme. From now on, Kdenlive versions will be numbered with Year.Month.Bugfix. That explains the 15.04.0 version.
  • Every KDE contributor can help us improve Kdenlive.

What changes right now for Kdenlive users

Most of the work for this release was porting the code to Qt5 and KDE Frameworks 5 (KF5). While users will not see direct benefit, this makes us ready for the next big steps. Changes in this version include:

  • Since we are now based on Qt5/KF5, you NEED KDE Frameworks 5 to run Kdenlive.
  • Fixed video stabilization
  • Auto save new projects
  • Download new render profile feature fixed

You can download the source code, binary packages for your distro should hopefully be prepared by distibution packagers.

What will change in the near future

While Kdenlive 15.04.0 is mostly a Qt5/KF5 port, we have many new features/improvements in preparation for the 15.08.0 release. Here are some of the features that we are currently working on:

  • Finally integrate some of Till Theato's work resulting from our Indiegogo campain. It took us 2.5 years but we are finally merging parts of the refactoring effort.
  • Use OpenGL for the video display, bringing back experimental GPU display and effects
  • Add effects to Project clips: for example, add color correction to the clip in the Project Bin. Every instance of the clip that is then used in timeline will have that color correction.
  • Cleaning the code to make it easier to understand.

That's it for today, I probably forgot many things but that might be an excuse to blog more often :).

Kdenlive to be released with KDE Applications 15.04

... based on Frameworks 5!

So we met the freeze deadline to get our port to KF5 released with KDE Apps.

What does it change? you have a changelog, but it doesn't explain what's behind.

Being based on KF5 makes Kdenlive future-proof and opens doors for potential new horizons (platforms, design)...

Being part of KDE family changes things more "socially" than "technically" (quoting tsdgeo ;-)). Changes to the source are now sent for review systematically, releases preparation and delivery will now be handled by experts under a fixed planning, we are now mentored to take part to initiatives like SoC... and exchanges with other devs are now flowing much more naturally ;-)
I personally feel the difference!

And for you users?

You will have to run a recent distribution offering KF5, this may be problematic at the beginning (you can stick to 0.9.10)...
Then to reward you if you follow our progression, a few new features to test: ripple delete, stem audio export... Several bugs fixed, maybe some new introduced in the port process :-\

Please test a dev version or a beta (knowing it is a pre-release) and let us know!

Kdenlive news for 4 months... many good things!


Yes, we definitely should blog more, even about small steps... all summed up the progress are not so negligible!

First, let me come back to September: we didn't talk about it here, and it's a shame: we all must sincerely thank Akademy Jury for designating JB for Application Award! We all were really touched, he can be very proud of it and deserves it for so many years of hard work... and he did rise to the bait, as this raised back his motivation to come help us again! So double, triple, infinite thanks for that prize.

Then, let's continue with chronology, after October and final steps completion in KDE incubation.

In late November, we organized a micro-sprint: JB came to my home over a week-end, where while walking on the Chartreuse trails, we mainly discussed about vision for the near and long-term future of Kdenlive. Sorry for not opening the discussion, we didn't really know in advance what would happen. We organized the tasks on the new todo board... and decided to start the port to Frameworks 5 right that evening!

Vincent and JB, November 2014

In December, after 3 weeks and as a Christmas gift, the port was completely freed from kde4support.

Without loosing momentum, JB started to work on the discussed refactoring before the new year eve giving the impulse for 2015.

In January, refactoring step 1 out of 3 has progressed well (project clips, then will come monitor and timeline). It is becoming usable for early tests, but small things still need to be cleaned.

Here comes February. As we talked on the list about preparing a Frameworks 5 release for 15.04 (with KDE Applications?), Mario Fux who is mentoring us focused our attention on getting in line for this. We just had our first IRC meeting, very friendly and effective, and already addressed several points raised then.

That lead me to submit our ideas for SoC, as I offered to mentor a 1st student this year! So welcome to you young coders; it's just ideas, let's discuss what you would like to do!

An important point I want to mention here is that most recent informations are now on KDE wiki. I take this opportunity to warmly thank ttguy for his huge work to complete the Manual, and for the help he provides to users on forum.

There are certainly many points you would like more details, don't hesitate to ask on the list, and maybe we will write more here quickly?!

New mailing list!

Our mailing list is also transferred now. For registration or archives consulting, go on to info page.
Thanks again to KDE Sysadmins for patience and help!

Work in progress

So what's happening since last release one month back? If you look only at source code evolution, you may think I already entered hibernation... not completely!

Kdenlive 0.9.10… Yet Another Bugfix Release

4 month after 0.9.8, here comes a new release of your favorite video editor.

Don't look for shiny new features: development has been focused at removing unreliable behaviours.
You will only find new VBR export settings, video stabilizer, better look on high DPI screens, but mainly no more crashes?

You can download the source tarball from KDE servers, and have a look at the changelog.

Randa meeting 2014

As you have read before, Vincent, Till, and me have met again this year at the Randa Sprint in the Swiss mountains. We have worked on Kdenlive and discussed + partly planned its future.

Read more …

Cleaning things before next impulse

At last it's coming: Randa sprint starts this weekend!

I expect these few days to be oriented towards Kdenlive future (some Frameworks 5 porting, some refactoring, some new features)... So before that I'm trying to leave the present things in the best possible state, preparing a v0.9.10 release.
I have sorted the source files in the repository, so that it is easier to take his marks for a newcomer (like me few month back!), a new step towards code documentation ;-)
I fixed most static analyzers warnings, and am still occupied with reproducing and fixing bugs... some old entries are still relevant or contain interesting suggestions!

Even if you are not a developer, you can help in this task by reproducing bugs with recent builds, cleaning obsolete entries... don't hesitate to contact us!

Another important thing is translations; even for old versions, many languages are still incomplete. If you want to get involved, get in touch with your local KDE "l10n" team, it is a good opportunity to help the project in general!

My target is to catch Debian Jessie (5. nov.; for Ubuntu Utopic it's too late)... letting time for packagers & release managers to do their work it means we should deliver everything around mid September!

If you have suggestions in mind for small improvements or big changes, it's also time to send us a comment, so that we can consider it in our discussions.

For sure there will be news soon, with pictures from the Alps!

Kdenlive at Randa

Back in 2011 among other things the foundations for a renewal of Kdenlive's code were laid in a small village in the Swiss alps. In August again some members of the Kdenlive team will attend the KDE developer sprint in Randa. We want to use the week to push new energy into Kdenlive and to discuss future plans. Major topics will be:

Kdenlive 0.9.8, the stable track

Dear kdenlive fans,

If you edit movies "for real", you probably don't use the development snapshots (do you?) and stick to the latest release, dating back from one year. Yet, our bugtracker didn't remain empty even with v0.9.6, so you may have been waiting for an upgrade... here it comes!


Subscribe to RSS - blogs