It is a creative use of the word "leak", not as in "memory leak". In any case, I have got a mathematical physics paper to read and I will be out sync for two or three days (sorry Scotty, I wanted to keep tracking the libraries, but this is more urgent
). If someone accidentally updates his machine I'd be interested on knowing what the fix is, please contact me privately then.
Let me add, I find positive the way iLiad is announcing this update: instead "miscelaneus security fixes" they are telling us what they are fixing so it is up to us to decide downloading or not.