The Parchment home page explains where to get the latest Parchment for Inform 7 template. You can also report bugs in the Issues tab at the top.
If an old template works for you then you can keep using it. But I am always fixing issues. Recently that includes some font and accessibility issues where windows would have the wrong sizes on high DPI screens or if zoomed in. So I’d encourage people to get the latest template, as it probably fixes many more bugs than it introduces.