The Javascript frontend scene almost literally exploded, in various ways.
Webasm got some serious traction. Old serious people like this, becuase it may eventually allow them to avoid the increasingly crazy javascript scene.
Computer vision (by means of machine learning/deep learning) got quite a bit easier to use, even if you're not a PhD in Computer Vision. Real-time inference from static photos is now easy. Real-time inference from video is still sorta hard/expensive, depending on your deployment target (embedded, backend).
Python people are still using Python even though it's dead slow.
A bunch of people moved from Java to Go and suddenly felt a lot happier.