Tja, besides LLMs I can't really see the major improvement todays IDEs and language combination brings over Eclipse+Java. Great docs, good autocomplete, good compiler feedback.
I am still a little stunned by the rapid adoption of VSCode over IntelliJ and the original Visual Studio. Maybe being free was the important part, but I still chafe at the idea that we should configure our tools using JSON instead of just, you know, buttons and checkboxes.
Of course, VSCode and its ilk are jam packed with AI stuff I don’t not want, so it is mostly back to a fancy text editor for me.