2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
Hello,
I have noticed that when you are in the RGB compose module, and you change stretch mode using the drop-down on the right, then the memory usage goes up every time a new image is displayed. I have 64GB of RAM and I can easily crash my computer by trying too many stretch options. What is worse, the memory is not released when you exit the RGB compose module, making APP restart the only option when you want to compose another image.
OS is Linux (Fedora). APP version is 2.0.0 beta 17
Karol
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Hello,
I have noticed that when you are in the RGB compose module, and you change stretch mode using the drop-down on the right, then the memory usage goes up every time a new image is displayed. I have 64GB of RAM and I can easily crash my computer by trying too many stretch options. What is worse, the memory is not released when you exit the RGB compose module, making APP restart the only option when you want to compose another image.
OS is Linux (Fedora). APP version is 2.0.0 beta 17
Karol
Hi Karol @karolbe,
Thank you very much for reporting this. I will investigate a.s.a.p. ! and fix of course!
Mabula
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Hi @karolbe,
Indeed, I can confirm this is a big problem actually. I will work on this now with high priority for the next beta20 release.
Mabula
Hi @karolbe,
This problem has been solved, APP 2.0.0-beta20 will be much better in terms of memory management, giving back memory quickly to the Operating System if possible 😉
Mabula
Hi Mabula,
I did saw this threat and also want to report a memory issu.
When I load files stack or proces the memory usage is building up and up.
When I push the "clear" button no memory comes back, also need to close the program and need to restart.
The only difference between me and KarolB is that I use windows 10.
Clear skies Jan-WillemÂ
Hi Jan-Willem @jan-willem,
Thank you very much, indeed, it is the same internal problem of these beta's yes. I have improved it a lot in the upcoming beta20 for sure !
Mabula
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Thank you, looking forward to the new beta or 2.0 version!!
Clear skies Jan-WillemÂ
You are most welcome !
