Here, using the latest release, dragging the right handle of a clip to the left, shortening it, ripples those to the right but does not change their length.
Dragging the left handle to the right, shortening it, leaves a gap which can be closed with a right-click | CLOSE GAP. This action may require holding down the <alt> key, to keep the clip edge from snapping back. Again, no change in adjacent clip length.
When the right handle of a clip is dragged right, lengthening it, the clip to the right is moved without changing its length. When the left handle is dragged left, the clip is lengthened but the prior clip length is unaffected.
If an entire clip is dragged (not by the handles) then it's another story; adjacent clips may split.
Different VP versions don't necessarily act precisely the same. And there are many scenarios, depending upon project layout, so results can be unpredictable. If you make a mistake immediate press <ctrl-Z> (EDIT | UNDO) to backtrack, step-by-step. You might also try dragging a clip to a new track, then changing its length.
Save Project File AS routinely, giving it a unique # or name, so as not to overwrite prior saves. Using Save Project Files (no AS) will overwrite.