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 đŸ™‚
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.
Hi all,
I just playing around with the new beta40. Seems to be quite fast. BUT I have encountered one problem:
When integrating 460 lights from Horsehead (using two different focal length 1500mm and 1150mm with my 12" Newtonian) I tried first a standard integration, no problem. Then switched from Integrate mode "interpolation" to Bayer/X-Trans", scale 1.0, droplet 0.85: worked again with no problem.
Then I thought try the new LNC: used 1st degree LNC with 3 iterations. Then everything went fine until "creating FITS HEADER": a "warning" poped up: encountered an Exception while saving..." (see attached image)
So maybe a bug?
Hi @juergenn,
Thank you very much for reporting this. In another thread, this issue is also mentioned. LNC 2.0 seems to have a problem with Bayer Drizzle stacks. I will quickly test here and will report back.
Mabula
@mabula-admin Same here Mabula with MacOS Tahoe most recent version on my Mac Studio... Rolled back to version 39 and all went fine...
Hi André @andrecajolais & @juergenn,
Thank you very much for reporting this. Is this the same problem, LNC 2.0 not working with Bayer Drizzle? Or are you using different integration settings?
I am working to fix this and will try to release a fixed version tomorrow. Will report back soon.
Mabula.
Hi @andrecajolais & @juergenn,
I have fixed the issue with LNC2.0 and (Bayer)Drizzle for beta41, will try to release it later today đŸ˜‰
Mabula
@mabula-admin Mabula All went fine with beta41...on MacOs Tahoe 26.4.1 ... Many thanks again for the hardwork!!!!
Hi André @andrecajolais,
Awesome, that is great to read đŸ™‚ thank you very much for the feedback ! It is my pleasure đŸ˜‰
Mabula
