If you really, really want to play...

For the curious, and although there are other extensions as well, if you want to see just how fast the update is (and I actually slowed it down because it was faster than the disk), then open the command prompt. Go to the PL installation directory. Then run QuickUpgrade.exe. This will upgrade your copy (to the current version). It still needs refinement, some tweaks and fixes, etc.. but there it is.