Now that the I7 extensions page has RSS, it may be redundant to announce these at all, but I have added two little extensions in the last couple of days. One is called “Modified Exit”, designed to deal more sensibly with cases where the player wants to go somewhere but is sitting on an enterable supporter or is inside an enterable container; it makes a few other tweaks to the standard rules on exiting as well.
The second is even more tiny: Property Checking goes through and makes sure all your rooms and objects have descriptions, as a test. (It will not do this in released games — this is purely a debugging function.) I built it because I was startled to find in my (slowly ongoing) Floatpoint revision that I had one or two things about which the player could still see nothing special. Oops.