IMO they have all been clean and noticeable upgrades over their predecessors. Opus 4.7 in particular was a solid jump in capabilities.

most of my coworkers feel the opposite about 4.7 and that 4.6 was, to them, significantly better to point that several stopped using claude code

4.5 -> 4.7 was a solid jump for me having skipped 4.6. It probably does depend on the specific tasks.

I think it's telling how split the opinions are around all of this. A lot of people distinctly disliked 4.7.

Are the dividing lines around personality? Working domains? Opinionated software stuff?

Who knows?