Why was the original Exchange version detection method from the previous article considered inefficient, and how does the new approach solve that?

The previous method in Penetration Basics - Exchange Version Detection and Vulnerability Scanning relied on a manually updated version list stored in the script, requiring periodic visits to Microsoft's official website to keep the list current. The new approach, detailed in this article, scrapes the official Microsoft Exchange build numbers page directly using BeautifulSoup to extract version information in real-time, eliminating the need for manual updates and ensuring detection accuracy.