On the HackSpace magazine website, find the details for the current issue, including its number, publication month, and main cover story. Also, explain how a user can freely download PDF versions of any past issues of HackSpace magazine directly from this site.
Navigate to 'hackspace.raspberrypi.com'. Identify the most recently published issue displayed on the page. Extract the issue number, publication month, and its main cover feature. Locate and describe the method for downloading free PDF versions of past issues. Synthesize the collected information into a concise answer.
State that the latest issue is Issue 81. State that the publication month for Issue 81 is August 2024. State that the cover feature of Issue 81 is '50 Electronics projects: learn the ultimate maker superpower!'. Clearly explain that free PDF versions of past issues can be downloaded by clicking the 'Download PDF' link associated with each issue on the website.