May 27 2026 APP 2.0.0-beta45 has been released !
Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Mabula (@mabula-admin)
I have recently switched from Windows to Linux and I can no longer change the black point by clicking left or right of the button on the slider. The image redraws but the BP value is unchanged. I can change the BP by grabbing the button, but this is very imprecise. I can no longer make small repeatable changes by clicking the slider. Other sliders are also affected.
I have tested this in beta40 and beta44. I am on Linux Mint 22.3, Cinnamon DE, X11.
It may be that this was a designed change that happened some time ago, as on Windows I was still using the last production version of APP (I know that's ancient history 🙄 ). Or alternatively this may be a minor, Linux only bug. Either way I would like to have the ability to make small repeatable adjustments restored.
thanks
JC
Hi John @connor231,
Thank you very much for reporting this.
I have opened an issue on our issue list to test this on windows versus Linux. I am not aware of this problem so thank you vey much for reporting this.
I understand that you Linux Mint is still using the X11 display server, it is not using the newer Wayland?
It could be that this is specific Linux issue indeed and a thing like this is sometimes caused by our development platform.
Yesterday, I released 2.0.0-beta45 and we have moved again to a newer dev platform OpenJDK 26.0.1, so please try it and let me know if the behaviour is the same or fixed with beta45.
Thanks,
Mabula
Mabula (@mabula-admin)
Wayland is still said to be experimental for Linux Mint, and apparently there are still some reliability issues. My plan is to switch from X11 to Wayland with the next release of Mint, where Wayland is planned to be the default. Probably Dec 2026.
I tested this issue with beta 45 and the results were interesting. I still could not click left or right on the slider and get a small change to the black point. However, as long the scaling factor was zoomed right out (or do I mean in ?) I could now grab the button and make small changes. That's good enough for me to live with - so if you want to demote this to a low priority issue that's ok. Who knows - once we are all on Wayland the problem might go away by itself 😉 .
JC
Hi John @connor231,
Thanks for your feedback.
One of the reasons that I have been upgrading our development platform many times and as soon as possible, it to have as good as possible Wayland support in APP. The latest Java JDK 26 is having much better support for Wayland on Linux than older java versions. The open source community and Oracle are working very hard to rewrite many code for java so that it is fully capable on Linux Wayland. All the old code for X11 related to user interfaces is being rewritten for Wayland.
My testing on Ubuntu with Wayland enabled shows that with JDK26 things are working very well already. Â I know from the java JDK issue list that not everything is fixed yet, but most of the work, especially the critical components are done and work as expected.
I suspect that going forward all will work perfectly fine on Linux with Wayland for APP users.
I keep your issue on my list and I will test it going forward 😉
Mabula
