Note: byuu, the author of this program, has more recently put out an updated UPS patcher, upset, as a replacement for Tsukuyomi UPS. The name is an homage to one of the most well known and polished IPS patchers around, Lunar IPS by FuSoYa (Tsukuyomi is the name of the moon god in Japanese mythology).
This original UPS patcher is called Tsukuyomi UPS.
UPS is completely future proof in that regard. But thanks to a condensed pointer encoding method, the file size can be infinite. Walking sound patch-Available: FE6, FE7, FE8 -Allows changing classes walking sound much easier. No easy mode-Available: FE8 -As the name says, you can't select easy mode for difficulty with this patch. The spec for UPS supports any file size, though the binary is currently limited to 4GB files due to libc limitations. Repairing merchant patch-Available: FE7 -When you store an item to storage, it gets repaired automatically for a cost. The difficulty of implementing it is equal to IPS (it has trickier pointers, but no RLE magic). It is designed to be a direct replacement for IPS and to resolve all the problems that can occur with IPS, mainly it adds the so called checksum validation of the original file, which is being patched and therefore prevents any false patching and bugged roms (due to false patching). The USP patching format is different from NINJA/xdelta/etc.