Quick note: I was having trouble with the update, and it turned out that the realtime filesystem protection in Microsoft Security Essentials (Win7 64) was detecting the 2.3i version as Trojan: Win32/Spallowz.A!cl and automatically deleting it after it downloaded...
I turned off realtime protection, downloaded the file from a few of the mirrors (melauto.it, kilobyte.cz, turekuba.cz) and scanned them in VirusTotal, and other than ESET's "a variant of Win32/Server-Web.HFS.A potentially unsafe" false positive they came up clean. I had to whitelist the executable in Microsoft Security Essentials to stop it from auto-deleting... anyone else getting this behavior?