In a field as young as software, three decades is too long for almost any software tool to remain frozen. Many new ideas might have built up — especially as the

In a field as young as software, three decades is too long for almost any software tool to remain frozen. Many new ideas might have built up — especially as the world around you (and needs) changes. You might keep writing extensions for your tool, or release periodic updates, or freeze your tool and call it “done”, and write a new tool every few years… they are all different ways to handle the same underlying mechanics.