No tool is perfect, and 3.5.17 shows its age in three specific areas:
is the vim of wireframing. It is ugly, it is old, and it is gloriously efficient. It respects your time by not offering infinite design choices. It respects your stakeholders by not tricking them into thinking the UI is finished.
For many designers, product managers, and developers, represents one of those golden iterations. As a later build in the Version 3 lifecycle, it stands as a testament to the core philosophy of low-fidelity wireframing before the industry fully pivoted toward high-fidelity, browser-based collaboration suites.