Revned can specify the particular changes, but the new ones are the non-castle areas, the Forest and Nightmare, plus the Richter prologue, "Final Stage: "Bloodlines"". The changed ones are the whole castle, the Catacombs, Clock Tower, Royal Chapel, and Castle Keep.
Because I don't always remark when maps are merely corrected, maps of the two Garden areas on the Sega Saturn version were also updated yesterday.
It's come up before as a suggestion to indicate what maps are new, or to put latest revision date, or something to that effect. For the main page, it would be too much to do, for some days when I get a few dozen or even over a hundred maps. If I picked and chose individual maps to mention, that would just be more work, plus I run the risk of offending someone if I decide their maps aren't worth making individual note of. For the main listing, I could put dates, but not now. I would have to also put dates down for all the maps we have now...and for however many maps we have - 30,000? I forget offhand, but it's around there - or I could have it automatically generated (along with image area and file size) if and when we get a site revamp. That's another can of worms...