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.
I have been running APP on my M2 MacStudio running Sequoia and it has been working fine. Â I updated to the latest version of Sequoia 15.1.1 and now APP takes forever to load and if/when it does if I load up some subs it starts but then crashes. All of my data resides on the internal SSD. Â I have 128Gb of Ram and 2Tb of free disk space. Â Resources should not be an issue. Â Sorry for the double post. Â I thought the first post did not work as I waited a while and it looked like the website had hung. Â This post has more info than my first.
An update. Â I have no clue why but it's now working. Â Obviously something in the background was making it not work but it is now.
Hi Phillip Hoppes @rimcrazyphyahoo-com,
Okay, maybe the macOS update itself caused some problem in the OS? Perhaps after restarting your mac, all is fine now? Can I close this topic and also the other one that you opened with this issue?
Please let me know if the problem happens again though.
Mabula
You can close this. Â I am not sure what was going on. Â If it does it again, repeatedly after multiple days and reboots I will post again but for the moment it's just one of those mysteries of life. Â Thanks.
I have seen the same with almost the same setup. MacBook Pro M3 Sequoia since updating the OS to 15 (not just latest release). It does not happen all the time, but seems to do so randomly, so it's not just the OP. When this happens, which again is not all the time, I usually force quite and try again and it will work after 2-3 attempts. I'll post here if I uncover any other potential reasons or a way to reliably reproduce the error.Â
Hi @rimcrazyphyahoo-com and @anrake,
Please check on macOS Sequoia 15.2 and later with APP 2.0.0-beta32 which you can find from the download links. All seems to be working well now I think. It looks like there was a bug in the earlier macOS Sequoia or some bug fix from our end has solved it now.
Can you confirm this?
Mabula
Â
Indeed, I ran APP several times the last couple days and no problems. Â Thanks!
