Thanks everyone for your feedback. Especially dj_buckley for the exhaustive post. We will definitely take this forum thread into account when deciding about what to improve in our caustics solver and how to prioritize it.
I will just leave this short reply here, and will return later with some further info (or alternatively someone else from the team). It seems that there is a difference between the developer and user point of view here, and also our marketing/support materials do need some clarification.
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this is exactly what we wanted to hear from you guys, thanks to Maru and the entire development team, corona is an excellent render engine, otherwise we would not write here) I hope you will surpass yourself again and we will get the best tool on the market to achieve the maximum photorealism, as always.
PS
if possible, I would like to learn from you about the possibility of introducing a calculation of caustics in volumes, how realistic is it in the foreseeable future, or is it better to forget about it)