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.
Either using 1.075 and 1.076beta3 version, with multi session processing, when i proceed to integration tab, this error occurs.
Any help or solution, please?
Thanks
Andrea
I think it means your working directory is in a place which is read-only, so APP is unable to use it for processing. Could you try by changing the working directory to a place where you're sure you can read and write files?
@vincent-mod
Since i started evaluating APP trial i set that directory as default; where every astro .fits files are saved (it's a dedicated SSD HDD partition) and no problem at all: APP opens and saves always every files in that directory. But this happens only when i use a single sequence of frames, single session. When i want to process a multi session frames, until normalize tool everything works fine: when i click integrate it happens as shown in the attached screenshots.
I changed the directory, as vincent suggested, and everything worked flawlessy as usual: it's another SDD HDD partition.
So i wonder: why the usual directory works for a single session process? And APP doesn't like that usual directory for a multi session process? The 2 SDD HDD partitions are both in NTFS and created by the same program (Aomei Partition)..
Thanks Vincent for your help: now, anyway, i'm able to do multi session processing
Last edit/ Update: even if i'm the unique pc administrator, every time i wanted to move or copy a file into that partition it asked me a popup with "administrator permissions must be provided...": i had to give every permissions to everyone. After that, i'm able to move/copy/write files into that partition....And eventually, obviously APP now works...
Hi @ippiu & @vincent-mod,
The problem here is that the partition is not permanently mounted by the OS. If you configure the mount points to be permanently mounted, then all should work okay.
So once you start processing, the partition will be mounted and all seems to work okay. But when APP arrives at the integration stage, the Operating System no longer had a valid mountpoint. That is what the warning is about 😉
Kind regards,
Mabula
