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.
Hi
I'm processing simple (not a mosaic) narrowband data of the Tarantula Nebula, no problems or errors at earlier stages but on attempting to ingrate I get this message. Integration fails.
Data taken with a ZWO ASI1600MM Pro, captured in Voyager. processed on a Windows 11 machine.
Appreciate any help.
Hi Stephen @stevewilkinsmailgmail-com,
Thank you very much for posting your issue.
First of all, which APP version are you using? Please try with the latest release from our downloads section (currently the latest is 2.0.0-beta30) if you used an older version and let me know if the issue is still there or not.
The issue could be caused maybe by a problem in registration, was APP able to register all the frames? Was all looking okay after step 4) REGISTER?
Mabula
im using the 2.0.0 beta 30 version and had no difficulties or errors in the earlier steps, i completed 4) REGISTER ok and saved the registered files. Prior to that I had calibrated and also saved at that stage.
I should add I used all default settings at each step
Hi Stephen @stevewilkinsmailgmail-com,
Thank you very much for answering my questions. Okay, so you also use default settings in 5)Normalize? What happens if you don't save the calibrated and registered files and simply process the lights with calibration frames directly to integration? And the error occurs then while doing 6)Integrate?
Perhaps I should see the frames that you are processing to understand what happens?
Are you skipping star analysis and registration when you load the registered frames to integrate them ?
Mabula
Hi @stevewilkinsmailgmail-com,
Can you try with APP 2.0.0-beta32 from the Downloads section? I have confirmation from another APP user that this error is solved in that version. Can you let me know if all is okay now or not?
Mabula
Thanks Mabula, sounds good. Will do, ‘real life’ interfered and I was not able to follow up. Will let you know as soon as I can get to it.
Hi Mabula, I just downloaded v2.0.0 beta 32 and processed all steps without intermediate saves and all worked fine with no errors.
Hi Stephen @stevewilkinsmailgmail-com,
Excellent, thank you very much for the feedback. Please let me know if the error happens again though 😉
Mabula
I am processing a 16 panel Milky Way mosaic with 6 additional HA panels. I get through registration without any problems. I work out rotation, horizontal and vertical settings and scale Integration down to 0.1 scale until I have final settings. My issues is I get this error message when I scale up the integration to more than 0.7. Picture dimensions at scale 0.7 are 21546x19895. My MacBook is 10 CPU with 32 GB of storage. Is this a shortage of memory issue or is there a work around? I am running APP 2.0.0-beta38.
Here is the error message.

