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 had to install Window 10 and APP again...It's the first time I used APP after the fresh download.
I keep getting Insufficient RAM errors. I slid the knob over then rebooted the PC. Still didn't change....
Also says I'm only using 2 RAM out of 16....
What is the procedure for increasing it?
Thanks
Rod
You would need to click on the cfg button (on the top left side) and select the amount of memory from a top-down list. As seen here;
Then you restart and APP uses that memory.
@vincent-mod
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Ah, I see. I never knew there was a drop down menu. All I saw was that slider, and when I slid it over nothing happened...
What is a good number to put this one. I realize each computer is unique...Just a ballpark number. Mine goes up to 15...I'ts been on 2 now ever since using APP...
What does the slider do? I'm showing using 3 Threads whatever that is, it's at default about 3/4 of the way to the right.
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I'll try it, thanks!
Rod
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So, it indeed depends on your system. I have 32GB of memory and set it at 30. But that does mean that for a huge dataset, I might have trouble using my computer for something else. For light work that then should be ok.
The number of threads is for your processor. So if you have a 4-core processor, you can set it to 3 threads. Or if thet4-core processor supports multiple threads, it then becomes 7-8. This means APP can split up the work to the amount of threads your processor can handle and this also speeds up processing. I always leave 1 thread for my system so my computer doesn't grind to a halt. 🙂
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@vincent-mod
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This Lenovo Think Pad I use is dedicated just for my Astrophotography...I use a MacBook for everything else.
I'm looking at the task manager here seeing what's eating what, the APP consumes about 60-70%. I may have to start thinking about a stronger PC...Looking into that now..I have 16GB of RAM, and this PC in not upgradable to 32GB...I have it set for 13...I may max it out then do another set of images just to see what it does. 13 did not help much...
Thanks for the help Vince...! Have a great Sunday
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Rod
I have a thinkpad as well. 🙂 P53 as I needed a laptop that I could expand or even fix when needed. Always used Macbooks as well, but the recent ones even have fixed memory, so that wasn't to my taste anymore. Anyway, last years laptops can be fine and if you're going to look for a new one, I'd advice something with an AMD Ryzen CPU, which can have a lot of cores. SSD ofcourse, so that will speed up processing as well a bit and plenty of memory.
You're very welcome Rod, always a pleasure to assist you. 😉
@vincent-mod
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Who sells these, AMD Ryzen CPU computers? Are they pretty much throughout the market? Dell, HP, Lenovo, etc?
They are yes, just have a look at your local IT supplier and check if the laptop has an AMD ryzen chip. More cores the better. 🙂 Of course, a desktop will be even better as they are usually cheaper and have better thermals.
