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 would have though the software would warn me that I had insufficient disk space before running but it didn't. Â So now I'm hours into a stacking session and don't want to start over. Â I tried to locate where I could just change the working directory to a drive with more space but I can't find that so my though was to close the application then restart and select a new location and pick up where I left off. Â Â I can't find a menu anywhere that I and do this. Â
Where can I save my session or just change the working directory without starting over?
I'm running the most recent demo version that I downloaded this morning on OS X.
Sorry for the inconvenience, this is not yet fully possible. 1.084 will focus on being able to save changes, settings etc. APP usually does check the available space, but maybe there was an issue where MacOS didn't report it properly. This seems to happen sometimes, this will also be addressed. You can save in between in the latest versions, like going to the tab for registered frames, go down and select to save the registered frames. Next time you can load them in again and select to skip the first steps.
