Lightroom has an online web version that supports image recognition. When will this be available in the desktop app?
Do you mean Face Recognition?
Oh, I see. You mean the new Technology Preview for Lightroom Web of image search, without keywords, based on content within each image.
I'm sure they'll implement it in the desktop version as soon as they think it works OK and the Tech Preview succeeds.
I think Technology Previews enable users to road test this web technology, rather like Google Labs. I see it as a pre-release beta phase, providing Adobe with feedback. So I guess, in time, it may feature in LR desktop rather like face recognition.
For example search for “Food” and the LR magic will find suitable images without any key words being necessary.
I only have a few hundred images syncd to LR Mobile/Web so the indexing was quite quick. I’m not sure what resources would be necessary for my entire catalog. I know these services can be paused under the identity plate, but I believe some users are concerned about Lightroom becoming bloated with an effect on basic performance/workflow.