There are plenty more like VB 5 and 6 changed component architecture from VBX, to OCX (COM based), while adding features to do COM development in VB directly.

There are plenty more like VB 5 and 6 changed component architecture from VBX, to OCX (COM based), while adding features to do COM development in VB directly. VB 5 introduced proper AOT compilation, based on VC++ backend, which was further improved in VB 6. The debugger / REPL experience was much better on VB than VBA. You cannot really use most VB components in Excel / VBA unless AddIn support is enabled.