Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Hi I am sure this has been asked but I can’t find any posts that helps. I have taken more subs for the same target but instead of reloading all the light files from previous session and having to reintegrate them with new lights from a new session is it faster to add the older master integrations for each channel to be integrated together with the new lights? If so is there a process for doing this please? PC is heavily under load and crashes with more lights to deal with
You can make 2 separate integrations, then reload those in as new lights and do the integration of those again.
To develop a bit more on this: there are 2 main things you want to achieve when deciding how to combine multiple sessions:
- Get the best out of the data in terms of noise and quality
- Ensure outliers (satellites, etc, but also star bloats from bad seeing/focus) are well taken care of
The first point I honestly would not say you have a huge difference in terms of quality when stacking multiple sessions vs single big session, and the gain in time is very significant, especially until we can save sessions to stop-and-continue (ahem, very subtle hint? 😍).
The only real risk is the second: when combining pre-stacked chunks of your images, if you have outliers that have remained on your individual sessions' stacks, you risk not having enough images in the final stacking to get rid of them (e.g. imagine having 2 sessions only each with a leftover streak from a satellite in different places). Whereas if you stack everything together you're much more likely to get rid of outliers completely.
If you have 20-30 images or more on each of your sessions you can probably just add the stacks together, but if you're working with very few long exposures that can be an issue.
Hope this helps!
p.s. if you're stacking the big pre-stacked images you might as well do light pollution removal on each of your session stacks to get rid of big gradients prior to stacking them
